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| Unknown | 2001-10-09 | 25.7 KB | [�GC5/�CHS] |
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| id metadata |
|---|
| key | value |
|---|
| macFileType | [�GC5] |
| macFileCreator | [�CHS] |
hex view+--------+-------------------------+-------------------------+--------+--------+
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|00000520| 20 50 69 65 63 65 73 00 | 04 00 00 03 e6 40 00 03 | Pieces.|.....@..|
|00000530| e0 42 65 66 6f 72 65 20 | 77 65 20 63 61 6e 20 67 |.Before |we can g|
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|00000550| 6c 73 20 6f 66 20 68 6f | 77 20 65 61 63 68 20 70 |ls of ho|w each p|
|00000560| 69 65 63 65 20 61 63 74 | 75 61 6c 6c 79 20 6d 6f |iece act|ually mo|
|00000570| 76 65 73 2c 20 77 65 20 | 66 69 72 73 74 20 6e 65 |ves, we |first ne|
|00000580| 65 64 20 74 6f 20 67 65 | 74 20 61 63 71 75 61 69 |ed to ge|t acquai|
|00000590| 6e 74 65 64 20 77 69 74 | 68 20 74 68 65 20 76 61 |nted wit|h the va|
|000005a0| 72 69 6f 75 73 20 70 69 | 65 63 65 20 74 79 70 65 |rious pi|ece type|
|000005b0| 73 3a 20 54 68 65 20 77 | 68 69 74 65 20 70 69 65 |s: The w|hite pie|
|000005c0| 63 65 20 69 6e 20 74 68 | 65 20 6c 6f 77 65 72 20 |ce in th|e lower |
|000005d0| 6c 65 66 74 68 61 6e 64 | 20 63 6f 72 6e 65 72 20 |lefthand| corner |
|000005e0| 72 65 73 65 6d 62 6c 69 | 6e 67 20 61 20 74 6f 77 |resembli|ng a tow|
|000005f0| 65 72 20 69 73 20 63 61 | 6c 6c 65 64 20 61 20 22 |er is ca|lled a "|
|00000600| 72 6f 6f 6b 22 2e 20 4e | 65 78 74 20 74 6f 20 74 |rook". N|ext to t|
|00000610| 68 65 20 72 6f 6f 6b 20 | 77 65 20 66 69 6e 64 20 |he rook |we find |
|00000620| 74 68 65 20 68 6f 72 73 | 65 6c 69 6b 65 20 22 6b |the hors|elike "k|
|00000630| 6e 69 67 68 74 22 2c 20 | 66 6f 6c 6c 6f 77 65 64 |night", |followed|
|00000640| 20 62 79 20 74 68 65 20 | 22 62 69 73 68 6f 70 22 | by the |"bishop"|
|00000650| 2c 20 74 68 65 20 22 71 | 75 65 65 6e 22 20 61 6e |, the "q|ueen" an|
|00000660| 64 20 74 68 65 20 22 6b | 69 6e 67 22 2e 20 4e 65 |d the "k|ing". Ne|
|00000670| 78 74 20 74 6f 20 74 68 | 65 20 6b 69 6e 67 20 77 |xt to th|e king w|
|00000680| 65 20 74 68 65 6e 20 68 | 61 76 65 20 6f 6e 65 20 |e then h|ave one |
|00000690| 6d 6f 72 65 20 62 69 73 | 68 6f 70 2c 20 6b 6e 69 |more bis|hop, kni|
|000006a0| 67 68 74 20 61 6e 64 20 | 72 6f 6f 6b 2e 20 49 6e |ght and |rook. In|
|000006b0| 20 66 72 6f 6e 74 20 6f | 66 20 74 68 65 73 65 20 | front o|f these |
|000006c0| 38 20 70 69 65 63 65 73 | 20 6f 6e 20 74 68 65 20 |8 pieces| on the |
|000006d0| 73 65 63 6f 6e 64 20 72 | 6f 77 20 61 72 65 20 74 |second r|ow are t|
|000006e0| 68 65 20 38 20 22 70 61 | 77 6e 73 22 2e 20 42 6c |he 8 "pa|wns". Bl|
|000006f0| 61 63 6b 20 69 73 20 65 | 71 75 69 70 70 65 64 20 |ack is e|quipped |
|00000700| 77 69 74 68 20 61 20 73 | 69 6d 69 6c 61 72 20 73 |with a s|imilar s|
|00000710| 65 74 20 6f 66 20 70 69 | 65 63 65 73 2e 0d 0d 54 |et of pi|eces...T|
|00000720| 6f 20 73 75 6d 6d 61 72 | 69 7a 65 20 74 68 65 72 |o summar|ize ther|
|00000730| 65 20 61 72 65 20 74 68 | 75 73 20 36 20 64 69 66 |e are th|us 6 dif|
|00000740| 66 65 72 65 6e 74 20 70 | 69 65 63 65 20 74 79 70 |ferent p|iece typ|
|00000750| 65 73 2c 20 61 6e 64 20 | 65 61 63 68 20 70 6c 61 |es, and |each pla|
|00000760| 79 65 72 20 69 73 20 69 | 6e 69 74 69 61 6c 6c 79 |yer is i|nitially|
|00000770| 20 69 6e 20 70 6f 73 73 | 65 73 73 69 6f 6e 20 6f | in poss|ession o|
|00000780| 66 20 31 36 20 70 69 65 | 63 65 73 3a 0d 0d 20 20 |f 16 pie|ces:.. |
|00000790| 20 20 31 20 4b 69 6e 67 | 0d 20 20 20 20 31 20 51 | 1 King|. 1 Q|
|000007a0| 75 65 65 6e 0d 20 20 20 | 20 32 20 52 6f 6f 6b 73 |ueen. | 2 Rooks|
|000007b0| 0d 20 20 20 20 32 20 4b | 6e 69 67 68 74 73 0d 20 |. 2 K|nights. |
|000007c0| 20 20 20 32 20 42 69 73 | 68 6f 70 73 0d 20 20 20 | 2 Bis|hops. |
|000007d0| 20 38 20 50 61 77 6e 73 | 0d 0d 45 61 63 68 20 6f | 8 Pawns|..Each o|
|000007e0| 66 20 74 68 65 73 65 20 | 36 20 70 69 65 63 65 20 |f these |6 piece |
|000007f0| 74 79 70 65 73 20 61 72 | 65 20 69 64 65 6e 74 69 |types ar|e identi|
|00000800| 66 69 65 64 20 73 6f 6c | 65 6c 79 20 62 79 20 74 |fied sol|ely by t|
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|00000820| 2e 20 46 6f 72 20 69 6e | 73 74 61 6e 63 65 2c 20 |. For in|stance, |
|00000830| 74 68 65 20 66 61 63 74 | 20 74 68 61 74 20 74 68 |the fact| that th|
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|00000850| 67 65 72 20 74 68 61 6e | 20 74 68 65 20 72 6f 6f |ger than| the roo|
|00000860| 6b 20 69 73 20 6e 6f 74 | 20 62 65 63 61 75 73 65 |k is not| because|
|00000870| 20 74 68 65 20 71 75 65 | 65 6e 20 61 73 20 73 75 | the que|en as su|
|00000880| 63 68 20 68 61 73 20 68 | 69 67 68 65 72 20 72 61 |ch has h|igher ra|
|00000890| 6e 6b 20 74 68 61 6e 20 | 74 68 65 20 72 6f 6f 6b |nk than |the rook|
|000008a0| 20 28 61 73 20 69 6e 20 | 6d 6f 73 74 20 63 61 72 | (as in |most car|
|000008b0| 64 20 67 61 6d 65 73 20 | 61 6e 64 20 62 6f 61 72 |d games |and boar|
|000008c0| 64 20 67 61 6d 65 73 20 | 73 75 63 68 20 61 73 20 |d games |such as |
|000008d0| 53 74 72 61 74 65 67 6f | 29 2e 20 52 61 74 68 65 |Stratego|). Rathe|
|000008e0| 72 2c 20 74 68 65 20 71 | 75 65 65 6e 20 6d 6f 76 |r, the q|ueen mov|
|000008f0| 65 73 20 69 6e 20 61 20 | 77 61 79 20 73 75 70 65 |es in a |way supe|
|00000900| 72 69 6f 72 20 74 6f 20 | 74 68 65 20 72 6f 6f 6b |rior to |the rook|
|00000910| 2e 00 17 a0 15 0b 4f 62 | 6a 65 63 74 69 76 65 20 |......Ob|jective |
|00000920| 6f 66 20 43 68 65 73 73 | 00 04 00 00 03 81 40 00 |of Chess|......@.|
|00000930| 03 7b 54 68 65 20 6f 62 | 6a 65 63 74 69 76 65 20 |.{The ob|jective |
|00000940| 6f 66 20 74 68 65 20 67 | 61 6d 65 20 69 73 20 74 |of the g|ame is t|
|00000950| 6f 20 63 6f 6e 71 75 65 | 72 20 74 68 65 20 6f 70 |o conque|r the op|
|00000960| 70 6f 6e 65 6e 74 20 6b | 69 6e 67 2e 20 54 68 65 |ponent k|ing. The|
|00000970| 20 6b 69 6e 67 20 69 73 | 20 74 68 75 73 20 74 68 | king is| thus th|
|00000980| 65 20 6d 6f 73 74 20 69 | 6d 70 6f 72 74 61 6e 74 |e most i|mportant|
|00000990| 20 70 69 65 63 65 20 69 | 6e 20 63 68 65 73 73 2c | piece i|n chess,|
|000009a0| 20 61 6c 74 68 6f 75 67 | 68 20 6e 6f 74 20 74 68 | althoug|h not th|
|000009b0| 65 20 73 74 72 6f 6e 67 | 65 73 74 20 69 6e 20 74 |e strong|est in t|
|000009c0| 65 72 6d 73 20 6f 66 20 | 74 68 65 20 61 62 69 6c |erms of |the abil|
|000009d0| 69 74 79 20 74 6f 20 63 | 61 70 74 75 72 65 20 6f |ity to c|apture o|
|000009e0| 70 70 6f 6e 65 6e 74 20 | 70 69 65 63 65 73 2e 20 |pponent |pieces. |
|000009f0| 54 68 69 73 20 61 63 74 | 75 61 6c 6c 79 20 69 73 |This act|ually is|
|00000a00| 2c 20 61 73 20 77 65 20 | 73 68 61 6c 6c 20 73 6f |, as we |shall so|
|00000a10| 6f 6e 20 73 65 65 2c 20 | 74 68 65 20 71 75 65 65 |on see, |the quee|
|00000a20| 6e 2e 0d 0d 54 68 65 20 | 73 69 64 65 20 74 6f 20 |n...The |side to |
|00000a30| 6d 6f 76 65 20 69 73 20 | 73 61 69 64 20 74 6f 20 |move is |said to |
|00000a40| 62 65 20 69 6e 20 22 63 | 68 65 63 6b 22 20 69 66 |be in "c|heck" if|
|00000a50| 20 68 69 73 20 6b 69 6e | 67 20 69 73 20 61 74 74 | his kin|g is att|
|00000a60| 61 63 6b 65 64 20 62 79 | 20 61 6e 20 6f 70 70 6f |acked by| an oppo|
|00000a70| 6e 65 6e 74 20 70 69 65 | 63 65 2c 20 69 2e 65 2e |nent pie|ce, i.e.|
|00000a80| 20 69 66 20 74 68 65 20 | 6b 69 6e 67 20 63 6f 75 | if the |king cou|
|00000a90| 6c 64 20 62 65 20 63 61 | 70 74 75 72 65 64 20 69 |ld be ca|ptured i|
|00000aa0| 6d 6d 65 64 69 61 74 65 | 6c 79 20 62 79 20 74 68 |mmediate|ly by th|
|00000ab0| 61 74 20 70 69 65 63 65 | 20 69 66 20 69 74 20 77 |at piece| if it w|
|00000ac0| 61 73 20 74 68 65 20 6f | 70 70 6f 6e 65 6e 74 27 |as the o|pponent'|
|00000ad0| 73 20 74 75 72 6e 20 74 | 6f 20 6d 6f 76 65 2e 20 |s turn t|o move. |
|00000ae0| 49 74 20 69 73 20 69 6c | 6c 65 67 61 6c 20 66 6f |It is il|legal fo|
|00000af0| 72 20 74 68 65 20 73 69 | 64 65 20 74 6f 20 6d 6f |r the si|de to mo|
|00000b00| 76 65 20 74 6f 20 6c 65 | 61 76 65 20 68 69 73 20 |ve to le|ave his |
|00000b10| 6b 69 6e 67 20 69 6e 20 | 63 68 65 63 6b 20 6f 72 |king in |check or|
|00000b20| 20 74 6f 20 6d 61 6b 65 | 20 61 20 6d 6f 76 65 20 | to make| a move |
|00000b30| 74 68 61 74 20 77 69 6c | 6c 20 61 6c 6c 6f 77 20 |that wil|l allow |
|00000b40| 74 68 65 20 6f 70 70 6f | 6e 65 6e 74 20 74 6f 20 |the oppo|nent to |
|00000b50| 63 61 70 74 75 72 65 20 | 68 69 73 20 6b 69 6e 67 |capture |his king|
|00000b60| 20 69 6d 6d 65 64 69 61 | 74 65 6c 79 20 74 68 65 | immedia|tely the|
|00000b70| 72 65 61 66 74 65 72 2e | 0d 09 49 66 20 74 68 65 |reafter.|..If the|
|00000b80| 20 73 69 64 65 20 74 6f | 20 6d 6f 76 65 20 69 73 | side to| move is|
|00000b90| 20 63 68 65 63 6b 20 61 | 6e 64 20 68 65 20 68 61 | check a|nd he ha|
|00000ba0| 73 20 6e 6f 20 6c 65 67 | 61 6c 20 6d 6f 76 65 73 |s no leg|al moves|
|00000bb0| 20 28 69 2e 65 2e 20 6e | 6f 20 6d 61 74 74 65 72 | (i.e. n|o matter|
|00000bc0| 20 77 68 61 74 20 68 65 | 20 64 6f 65 73 2c 20 74 | what he| does, t|
|00000bd0| 68 65 20 6f 70 70 6f 6e | 65 6e 74 20 63 61 6e 20 |he oppon|ent can |
|00000be0| 63 61 70 74 75 72 65 20 | 68 69 73 20 6b 69 6e 67 |capture |his king|
|00000bf0| 20 6f 6e 20 74 68 65 20 | 6e 65 78 74 20 6d 6f 76 | on the |next mov|
|00000c00| 65 29 2c 20 74 68 65 6e | 20 68 65 20 69 73 20 73 |e), then| he is s|
|00000c10| 61 69 64 20 74 6f 20 62 | 65 20 22 63 68 65 63 6b |aid to b|e "check|
|00000c20| 20 6d 61 74 65 22 20 6f | 72 20 6a 75 73 74 20 22 | mate" o|r just "|
|00000c30| 6d 61 74 65 22 20 61 6e | 64 20 68 61 73 20 6c 6f |mate" an|d has lo|
|00000c40| 73 74 20 74 68 65 20 67 | 61 6d 65 2e 20 54 68 65 |st the g|ame. The|
|00000c50| 20 6f 62 6a 65 63 74 69 | 76 65 20 6f 66 20 61 20 | objecti|ve of a |
|00000c60| 63 68 65 73 73 20 67 61 | 6d 65 20 63 61 6e 20 6e |chess ga|me can n|
|00000c70| 6f 77 20 62 65 20 73 74 | 61 74 65 64 20 6d 6f 72 |ow be st|ated mor|
|00000c80| 65 20 70 72 65 63 69 73 | 65 6c 79 3a 20 54 6f 20 |e precis|ely: To |
|00000c90| 63 68 65 63 6b 20 6d 61 | 74 65 20 74 68 65 20 6f |check ma|te the o|
|00000ca0| 70 70 6f 6e 65 6e 74 20 | 6b 69 6e 67 2e 00 18 a0 |pponent |king....|
|00000cb0| 16 0b 43 68 65 73 73 20 | 4d 6f 76 65 20 4e 6f 74 |..Chess |Move Not|
|00000cc0| 61 74 69 6f 6e 00 04 00 | 00 07 d6 40 00 07 d0 56 |ation...|...@...V|
|00000cd0| 61 72 69 6f 75 73 20 66 | 6f 72 6d 73 20 6f 66 20 |arious f|orms of |
|00000ce0| 63 68 65 73 73 20 6e 6f | 74 61 74 69 6f 6e 20 65 |chess no|tation e|
|00000cf0| 78 69 73 74 20 66 6f 72 | 20 64 65 73 63 72 69 62 |xist for| describ|
|00000d00| 69 6e 67 20 74 68 65 20 | 6d 6f 76 65 73 20 6f 66 |ing the |moves of|
|00000d10| 20 61 20 67 61 6d 65 2e | 20 54 68 65 20 6d 6f 73 | a game.| The mos|
|00000d20| 74 20 63 6f 6d 6d 6f 6e | 6c 79 20 75 73 65 64 20 |t common|ly used |
|00000d30| 66 6f 72 6d 20 69 73 20 | 74 68 65 20 73 6f 2d 63 |form is |the so-c|
|00000d40| 61 6c 6c 65 64 20 61 6c | 67 65 62 72 61 69 63 20 |alled al|gebraic |
|00000d50| 6e 6f 74 61 74 69 6f 6e | 2c 20 77 68 65 72 65 20 |notation|, where |
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|00001b90| 69 73 20 77 6f 75 6c 64 | 20 65 6e 61 62 6c 65 20 |is would| enable |
|00001ba0| 74 68 65 20 62 6c 61 63 | 6b 20 4b 69 6e 67 20 74 |the blac|k King t|
|00001bb0| 6f 20 63 61 70 74 75 72 | 65 20 74 68 65 20 77 68 |o captur|e the wh|
|00001bc0| 69 74 65 20 4b 69 6e 67 | 20 69 6d 6d 65 64 69 61 |ite King| immedia|
|00001bd0| 74 65 6c 79 20 61 66 74 | 65 72 77 61 72 64 73 2e |tely aft|erwards.|
|00001be0| 20 54 68 75 73 20 74 68 | 65 72 65 20 6d 75 73 74 | Thus th|ere must|
|00001bf0| 20 61 6c 77 61 79 73 20 | 62 65 20 61 74 20 6c 65 | always |be at le|
|00001c00| 61 73 74 20 6f 6e 65 20 | 73 71 75 61 72 65 20 62 |ast one |square b|
|00001c10| 65 74 77 65 65 6e 20 74 | 68 65 20 74 77 6f 20 6b |etween t|he two k|
|00001c20| 69 6e 67 73 2e 40 03 00 | 78 57 68 69 74 65 20 69 |ings.@..|xWhite i|
|00001c30| 6e 73 74 65 61 64 20 6d | 6f 76 65 73 20 68 69 73 |nstead m|oves his|
|00001c40| 20 6b 69 6e 67 20 74 6f | 20 65 35 20 74 6f 20 6b | king to| e5 to k|
|00001c50| 65 65 70 20 74 68 65 20 | 42 6c 61 63 6b 20 6b 69 |eep the |Black ki|
|00001c60| 6e 67 20 66 72 6f 6d 20 | 65 73 63 61 70 69 6e 67 |ng from |escaping|
|00001c70| 20 74 6f 6f 20 66 61 72 | 20 66 72 6f 6d 20 74 68 | too far| from th|
|00001c80| 65 20 65 64 67 65 2e 20 | 4e 6f 77 20 69 74 20 69 |e edge. |Now it i|
|00001c90| 73 20 42 6c 61 63 6b 27 | 73 20 74 75 72 6e 2e 2e |s Black'|s turn..|
|00001ca0| 2e 40 04 00 54 54 68 69 | 73 20 63 6f 6e 63 6c 75 |.@..TThi|s conclu|
|00001cb0| 64 65 73 20 74 68 65 20 | 6d 6f 76 65 6d 65 6e 74 |des the |movement|
|00001cc0| 20 6f 66 20 6b 69 6e 67 | 73 20 66 6f 72 20 74 68 | of king|s for th|
|00001cd0| 65 20 6d 6f 6d 65 6e 74 | 2e 20 57 65 20 77 69 6c |e moment|. We wil|
|00001ce0| 6c 20 6e 6f 77 20 69 6e | 74 72 6f 64 75 63 65 20 |l now in|troduce |
|00001cf0| 74 68 65 20 72 6f 6f 6b | 2e 00 10 1c 03 03 a0 0b |the rook|........|
|00001d00| 0b 54 68 65 20 52 6f 6f | 6b 00 10 80 07 00 03 08 |.The Roo|k.......|
|00001d10| 44 65 01 80 00 73 99 4d | ee 04 cd 40 00 01 23 54 |De...s.M|...@..#T|
|00001d20| 68 65 20 72 6f 6f 6b 20 | 63 61 6e 20 6d 6f 76 65 |he rook |can move|
|00001d30| 20 62 6f 74 68 20 76 65 | 72 74 69 63 61 6c 6c 79 | both ve|rtically|
|00001d40| 20 61 6e 64 20 68 6f 72 | 69 73 6f 6e 74 61 6c 6c | and hor|isontall|
|00001d50| 79 20 62 75 74 20 6e 6f | 74 20 64 69 61 67 6f 6e |y but no|t diagon|
|00001d60| 61 6c 6c 79 2e 20 43 6f | 6e 74 72 61 72 79 20 74 |ally. Co|ntrary t|
|00001d70| 6f 20 74 68 65 20 4b 69 | 6e 67 2c 20 74 68 65 20 |o the Ki|ng, the |
|00001d80| 72 6f 6f 6b 20 63 61 6e | 20 6d 6f 76 65 20 6d 6f |rook can| move mo|
|00001d90| 72 65 20 74 68 61 6e 20 | 6f 6e 65 20 73 71 75 61 |re than |one squa|
|00001da0| 72 65 20 61 74 20 61 20 | 74 69 6d 65 2c 20 62 75 |re at a |time, bu|
|00001db0| 74 20 69 74 20 63 61 6e | 6e 6f 74 20 70 61 73 73 |t it can|not pass|
|00001dc0| 20 74 68 72 6f 75 67 68 | 20 6f 63 63 75 70 69 65 | through| occupie|
|00001dd0| 64 20 73 71 75 61 72 65 | 73 20 28 68 6f 6c 64 20 |d square|s (hold |
|00001de0| 64 6f 77 6e 20 74 68 65 | 20 6f 70 74 69 6f 6e 20 |down the| option |
|00001df0| 6b 65 79 20 61 6e 64 20 | 63 6c 69 63 6b 20 6f 6e |key and |click on|
|00001e00| 20 74 68 65 20 77 68 69 | 74 65 20 72 6f 6f 6b 20 | the whi|te rook |
|00001e10| 69 6e 20 74 68 65 20 64 | 69 61 67 72 61 6d 20 74 |in the d|iagram t|
|00001e20| 6f 20 73 65 65 20 70 6f | 73 73 69 62 6c 65 20 6d |o see po|ssible m|
|00001e30| 6f 76 65 73 29 3a 0d 0d | 5b 44 49 41 47 52 41 4d |oves):..|[DIAGRAM|
|00001e40| 5d 0d 40 01 00 d3 54 68 | 69 73 20 6d 6f 76 65 20 |].@...Th|is move |
|00001e50| 63 75 74 73 20 6f 66 66 | 20 74 68 65 20 62 6c 61 |cuts off| the bla|
|00001e60| 63 6b 20 6b 69 6e 67 20 | 66 72 6f 6d 20 67 6f 69 |ck king |from goi|
|00001e70| 6e 67 20 74 6f 20 74 68 | 65 20 67 20 66 69 6c 65 |ng to th|e g file|
|00001e80| 2e 20 41 73 20 62 65 66 | 6f 72 65 2c 20 69 74 20 |. As bef|ore, it |
|00001e90| 69 73 20 69 6c 6c 65 67 | 61 6c 20 66 6f 72 20 61 |is illeg|al for a|
|00001ea0| 20 6b 69 6e 67 20 74 6f | 20 65 78 70 6f 73 65 20 | king to| expose |
|00001eb0| 68 69 6d 73 65 6c 66 20 | 74 6f 20 61 74 74 61 63 |himself |to attac|
|00001ec0| 6b 2e 20 49 66 20 42 6c | 61 63 6b 20 66 6f 72 20 |k. If Bl|ack for |
|00001ed0| 69 6e 73 74 61 6e 63 65 | 20 6d 6f 76 65 64 20 74 |instance| moved t|
|00001ee0| 6f 20 67 36 2c 20 74 68 | 65 20 57 68 69 74 65 20 |o g6, th|e White |
|00001ef0| 72 6f 6f 6b 20 63 6f 75 | 6c 64 20 63 61 70 74 75 |rook cou|ld captu|
|00001f00| 72 65 20 68 69 6d 20 62 | 79 20 70 6c 61 79 69 6e |re him b|y playin|
|00001f10| 67 20 52 67 31 78 67 36 | 2e 40 03 01 1e 54 68 69 |g Rg1xg6|.@...Thi|
|00001f20| 73 20 6d 6f 76 65 20 64 | 69 72 65 63 74 6c 79 20 |s move d|irectly |
|00001f30| 74 68 72 65 61 74 65 6e | 73 20 74 68 65 20 42 6c |threaten|s the Bl|
|00001f40| 61 63 6b 20 6b 69 6e 67 | 2c 20 69 2e 65 2e 20 42 |ack king|, i.e. B|
|00001f50| 6c 61 63 6b 20 69 73 20 | 69 6e 20 63 68 65 63 6b |lack is |in check|
|00001f60| 20 77 68 69 63 68 20 69 | 73 20 69 6e 64 69 63 61 | which i|s indica|
|00001f70| 74 65 64 20 62 79 20 61 | 20 22 2b 22 20 73 69 67 |ted by a| "+" sig|
|00001f80| 6e 20 61 66 74 65 72 20 | 74 68 65 20 6d 6f 76 65 |n after |the move|
|00001f90| 2e 0d 0d 4e 6f 77 20 42 | 6c 61 63 6b 20 69 73 20 |...Now B|lack is |
|00001fa0| 66 6f 72 63 65 64 20 74 | 6f 20 74 68 65 20 65 64 |forced t|o the ed|
|00001fb0| 67 65 20 6f 66 20 74 68 | 65 20 62 6f 61 72 64 2c |ge of th|e board,|
|00001fc0| 20 73 69 6e 63 65 20 74 | 68 65 20 77 68 69 74 65 | since t|he white|
|00001fd0| 20 6b 69 6e 67 20 63 6f | 6e 74 72 6f 6c 73 20 64 | king co|ntrols d|
|00001fe0| 36 2c 20 65 36 20 61 6e | 64 20 66 36 20 61 6e 64 |6, e6 an|d f6 and|
|00001ff0| 20 73 69 6e 63 65 20 74 | 68 65 20 77 68 69 74 65 | since t|he white|
|00002000| 20 72 6f 6f 6b 20 63 6f | 6e 74 72 6f 6c 73 20 66 | rook co|ntrols f|
|00002010| 37 20 61 6e 64 20 64 37 | 20 28 61 6e 64 20 69 6e |7 and d7| (and in|
|00002020| 20 66 61 63 74 20 74 68 | 65 20 77 68 6f 6c 65 20 | fact th|e whole |
|00002030| 37 74 68 20 72 61 6e 6b | 29 2e 20 40 07 01 a7 42 |7th rank|). @...B|
|00002040| 6c 61 63 6b 20 68 61 73 | 20 6e 6f 77 20 6c 6f 73 |lack has| now los|
|00002050| 74 20 74 68 65 20 67 61 | 6d 65 20 73 69 6e 63 65 |t the ga|me since|
|00002060| 20 68 69 73 20 6b 69 6e | 67 20 69 73 20 63 68 65 | his kin|g is che|
|00002070| 63 6b 20 6d 61 74 65 20 | 28 69 6e 64 69 63 61 74 |ck mate |(indicat|
|00002080| 65 64 20 62 79 20 61 20 | 22 23 22 20 73 69 67 6e |ed by a |"#" sign|
|00002090| 29 2c 20 69 2e 65 2e 20 | 42 6c 61 63 6b 20 69 73 |), i.e. |Black is|
|000020a0| 20 63 68 65 63 6b 20 61 | 6e 64 20 68 65 20 68 61 | check a|nd he ha|
|000020b0| 73 20 6e 6f 20 6c 65 67 | 61 6c 20 6d 6f 76 65 73 |s no leg|al moves|
|000020c0| 2c 20 62 65 63 61 75 73 | 65 20 6e 6f 20 6d 61 74 |, becaus|e no mat|
|000020d0| 74 65 72 20 77 68 65 72 | 65 20 68 69 73 20 6b 69 |ter wher|e his ki|
|000020e0| 6e 67 20 67 6f 65 73 2c | 20 57 68 69 74 65 20 63 |ng goes,| White c|
|000020f0| 61 6e 20 63 61 70 74 75 | 72 65 20 68 69 6d 20 6f |an captu|re him o|
|00002100| 6e 20 68 69 73 20 6e 65 | 78 74 20 6d 6f 76 65 20 |n his ne|xt move |
|00002110| 28 6f 66 20 63 6f 75 72 | 73 65 20 35 2e 20 2e 2e |(of cour|se 5. ..|
|00002120| 2e 20 4b 65 38 2d 64 38 | 20 69 73 20 6e 6f 74 20 |. Ke8-d8| is not |
|00002130| 42 6c 61 63 6b 27 73 20 | 62 65 73 74 20 6d 6f 76 |Black's |best mov|
|00002140| 65 2e 20 54 68 65 20 6d | 6f 76 65 20 35 2e 20 2e |e. The m|ove 5. .|
|00002150| 2e 2e 20 4b 65 38 2d 66 | 38 20 73 74 69 6c 6c 20 |.. Ke8-f|8 still |
|00002160| 6c 6f 73 65 73 20 62 75 | 74 20 70 6f 73 74 70 6f |loses bu|t postpo|
|00002170| 6e 65 73 20 74 68 65 20 | 6d 61 74 65 3a 20 36 2e |nes the |mate: 6.|
|00002180| 20 52 67 37 2d 65 37 20 | 4b 66 38 2d 67 38 20 37 | Rg7-e7 |Kf8-g8 7|
|00002190| 2e 20 4b 64 36 2d 65 36 | 20 4b 67 38 2d 66 38 20 |. Kd6-e6| Kg8-f8 |
|000021a0| 38 2e 20 4b 65 36 2d 66 | 36 20 4b 66 38 2d 67 38 |8. Ke6-f|6 Kf8-g8|
|000021b0| 20 39 2e 20 4b 66 36 2d | 67 36 20 4b 67 38 2d 66 | 9. Kf6-|g6 Kg8-f|
|000021c0| 38 20 31 30 2e 20 52 65 | 37 2d 65 36 20 4b 66 38 |8 10. Re|7-e6 Kf8|
|000021d0| 2d 67 38 20 31 31 2e 20 | 52 65 36 2d 65 38 23 20 |-g8 11. |Re6-e8# |
|000021e0| 6d 61 74 65 29 2e 00 12 | 1c 03 03 a0 0d 0b 54 68 |mate)...|......Th|
|000021f0| 65 20 42 69 73 68 6f 70 | 00 18 80 11 00 01 08 42 |e Bishop|.......B|
|00002200| 65 02 54 5c 00 2d db 71 | 5d a5 1b a6 ef 30 af 10 |e.T\.-.q|]....0..|
|00002210| 05 a9 40 00 02 9e 54 68 | 65 20 62 69 73 68 6f 70 |..@...Th|e bishop|
|00002220| 20 69 73 20 73 69 6d 69 | 6c 61 72 20 74 6f 20 74 | is simi|lar to t|
|00002230| 68 65 20 72 6f 6f 6b 2c | 20 74 68 65 20 64 69 66 |he rook,| the dif|
|00002240| 66 65 72 65 6e 63 65 20 | 62 65 69 6e 67 20 74 68 |ference |being th|
|00002250| 61 74 20 62 69 73 68 6f | 70 73 20 6f 6e 6c 79 20 |at bisho|ps only |
|00002260| 6d 6f 76 65 20 64 69 61 | 67 6f 6e 61 6c 6c 79 20 |move dia|gonally |
|00002270| 28 68 6f 6c 64 20 64 6f | 77 6e 20 74 68 65 20 6f |(hold do|wn the o|
|00002280| 70 74 69 6f 6e 20 6b 65 | 79 20 61 6e 64 20 63 6c |ption ke|y and cl|
|00002290| 69 63 6b 20 6f 6e 20 6f | 6e 65 20 6f 66 20 74 68 |ick on o|ne of th|
|000022a0| 65 20 62 69 73 68 6f 70 | 73 20 6f 6e 20 74 68 65 |e bishop|s on the|
|000022b0| 20 62 6f 61 72 64 20 74 | 6f 20 73 65 65 20 74 68 | board t|o see th|
|000022c0| 65 69 72 20 6d 6f 76 65 | 73 29 2e 20 4e 6f 74 65 |eir move|s). Note|
|000022d0| 20 74 68 61 74 20 74 68 | 65 20 62 69 73 68 6f 70 | that th|e bishop|
|000022e0| 20 6f 6e 20 65 33 20 63 | 61 6e 6e 6f 74 20 6d 6f | on e3 c|annot mo|
|000022f0| 76 65 20 74 6f 20 62 36 | 20 6f 72 20 61 37 20 69 |ve to b6| or a7 i|
|00002300| 6e 20 74 68 65 20 64 69 | 61 67 72 61 6d 20 62 65 |n the di|agram be|
|00002310| 63 61 75 73 65 20 69 74 | 73 20 70 61 74 68 20 69 |cause it|s path i|
|00002320| 73 20 62 6c 6f 63 6b 65 | 64 20 62 79 20 74 68 65 |s blocke|d by the|
|00002330| 20 77 68 69 74 65 20 6b | 69 6e 67 3a 0d 0d 5b 44 | white k|ing:..[D|
|00002340| 49 41 47 52 41 4d 5d 0d | 0d 41 20 62 69 73 68 6f |IAGRAM].|.A bisho|
|00002350| 70 20 74 68 75 73 20 61 | 6c 77 61 79 73 20 6d 6f |p thus a|lways mo|
|00002360| 76 65 73 20 6f 6e 20 69 | 64 65 6e 74 69 63 61 6c |ves on i|dentical|
|00002370| 6c 79 20 63 6f 6c 6f 75 | 72 65 64 20 73 71 75 61 |ly colou|red squa|
|00002380| 72 65 73 2c 20 61 6e 64 | 20 69 73 20 74 68 65 72 |res, and| is ther|
|00002390| 65 66 6f 72 65 20 77 65 | 61 6b 65 72 20 74 68 61 |efore we|aker tha|
|000023a0| 6e 20 61 20 72 6f 6f 6b | 20 74 68 61 74 20 63 61 |n a rook| that ca|
|000023b0| 6e 20 63 6f 6e 74 72 6f | 6c 20 61 20 77 68 6f 6c |n contro|l a whol|
|000023c0| 65 20 66 69 6c 65 20 6f | 72 20 72 61 6e 6b 2e 20 |e file o|r rank. |
|000023d0| 41 20 73 69 6e 67 6c 65 | 20 62 69 73 68 6f 70 20 |A single| bishop |
|000023e0| 61 6e 64 20 61 20 6b 69 | 6e 67 20 61 6c 73 6f 20 |and a ki|ng also |
|000023f0| 63 61 6e 6e 6f 74 20 66 | 6f 72 63 65 20 6d 61 74 |cannot f|orce mat|
|00002400| 65 20 6e 6f 20 6d 61 74 | 74 65 72 20 68 6f 77 20 |e no mat|ter how |
|00002410| 74 68 65 20 6c 6f 6e 65 | 6c 79 20 6b 69 6e 67 20 |the lone|ly king |
|00002420| 69 73 20 70 6c 61 63 65 | 64 20 6f 6e 20 74 68 65 |is place|d on the|
|00002430| 20 62 6f 61 72 64 2e 0d | 0d 54 77 6f 20 62 69 73 | board..|.Two bis|
|00002440| 68 6f 70 73 20 61 73 20 | 69 6e 20 74 68 65 20 64 |hops as |in the d|
|00002450| 69 61 67 72 61 6d 20 61 | 72 65 20 73 75 66 66 69 |iagram a|re suffi|
|00002460| 63 69 65 6e 74 20 74 68 | 6f 75 67 68 20 74 6f 20 |cient th|ough to |
|00002470| 66 6f 72 63 65 20 6d 61 | 74 65 20 28 70 72 6f 76 |force ma|te (prov|
|00002480| 69 64 65 64 20 74 68 65 | 79 20 61 72 65 20 6d 6f |ided the|y are mo|
|00002490| 76 69 6e 67 20 6f 6e 20 | 64 69 66 66 65 72 65 6e |ving on |differen|
|000024a0| 74 20 63 6f 6c 6f 75 72 | 65 64 20 73 71 75 61 72 |t colour|ed squar|
|000024b0| 65 73 29 2e 40 01 00 67 | 54 68 69 73 20 6d 6f 76 |es).@..g|This mov|
|000024c0| 65 20 69 6c 6c 75 73 74 | 72 61 74 65 73 20 74 68 |e illust|rates th|
|000024d0| 65 20 70 6f 77 65 72 20 | 6f 66 20 74 77 6f 20 61 |e power |of two a|
|000024e0| 64 6a 61 63 65 6e 74 20 | 62 69 73 68 6f 70 73 2e |djacent |bishops.|
|000024f0| 20 54 68 65 79 20 61 72 | 65 20 62 6c 6f 63 6b 69 | They ar|e blocki|
|00002500| 6e 67 20 74 68 65 20 72 | 69 67 68 74 20 73 69 64 |ng the r|ight sid|
|00002510| 65 20 6f 66 20 74 68 65 | 20 62 6f 61 72 64 2e 40 |e of the| board.@|
|00002520| 03 00 47 41 67 61 69 6e | 20 22 74 69 67 68 74 65 |..GAgain| "tighte|
|00002530| 6e 69 6e 67 22 20 74 68 | 65 20 67 72 69 70 20 62 |ning" th|e grip b|
|00002540| 79 20 70 72 65 76 65 6e | 74 69 6e 67 20 74 68 65 |y preven|ting the|
|00002550| 20 62 6c 61 63 6b 20 6b | 69 6e 67 20 66 72 6f 6d | black k|ing from|
|00002560| 20 65 73 63 61 70 69 6e | 67 2e 40 07 00 a5 4e 6f | escapin|g.@...No|
|00002570| 77 20 74 68 65 20 62 6c | 61 63 6b 20 6b 69 6e 67 |w the bl|ack king|
|00002580| 20 69 73 20 66 6f 72 63 | 65 64 20 74 6f 20 72 65 | is forc|ed to re|
|00002590| 74 72 65 61 74 20 74 6f | 20 74 68 65 20 65 64 67 |treat to| the edg|
|000025a0| 65 20 6f 66 20 74 68 65 | 20 62 6f 61 72 64 2c 20 |e of the| board, |
|000025b0| 77 68 69 63 68 20 2d 20 | 61 73 20 69 6e 20 74 68 |which - |as in th|
|000025c0| 65 20 63 61 73 65 20 6f | 66 20 74 68 65 20 72 6f |e case o|f the ro|
|000025d0| 6f 6b 20 2d 20 69 73 20 | 74 68 65 20 6f 6e 6c 79 |ok - is |the only|
|000025e0| 20 70 6c 61 63 65 20 77 | 68 65 72 65 20 57 68 69 | place w|here Whi|
|000025f0| 74 65 20 63 61 6e 20 66 | 6f 72 63 65 20 6d 61 74 |te can f|orce mat|
|00002600| 65 20 77 69 74 68 20 74 | 77 6f 20 62 69 73 68 6f |e with t|wo bisho|
|00002610| 70 73 2e 40 0d 01 55 41 | 6e 20 69 6d 70 6f 72 74 |ps.@..UA|n import|
|00002620| 61 6e 74 20 77 61 69 74 | 69 6e 67 20 6d 6f 76 65 |ant wait|ing move|
|00002630| 2e 20 54 68 65 20 6d 6f | 72 65 20 6f 62 76 69 6f |. The mo|re obvio|
|00002640| 75 73 20 6d 6f 76 65 20 | 42 66 36 2d 65 35 20 77 |us move |Bf6-e5 w|
|00002650| 68 69 63 68 20 74 61 6b | 65 73 20 61 77 61 79 20 |hich tak|es away |
|00002660| 74 68 65 20 6c 61 73 74 | 20 66 72 65 65 20 73 71 |the last| free sq|
|00002670| 75 61 72 65 20 66 72 6f | 6d 20 74 68 65 20 62 6c |uare fro|m the bl|
|00002680| 61 63 6b 20 6b 69 6e 67 | 20 61 63 74 75 61 6c 6c |ack king| actuall|
|00002690| 79 20 6c 65 61 64 73 20 | 74 6f 20 61 20 64 72 61 |y leads |to a dra|
|000026a0| 77 20 62 65 63 61 75 73 | 65 20 6f 66 20 61 20 73 |w becaus|e of a s|
|000026b0| 70 65 63 69 61 6c 20 72 | 75 6c 65 3a 20 41 6c 74 |pecial r|ule: Alt|
|000026c0| 68 6f 75 67 68 20 74 68 | 65 20 62 6c 61 63 6b 20 |hough th|e black |
|000026d0| 6b 69 6e 67 20 68 61 73 | 20 6e 6f 20 6c 65 67 61 |king has| no lega|
|000026e0| 6c 20 6d 6f 76 65 73 20 | 61 66 74 65 72 20 42 66 |l moves |after Bf|
|000026f0| 36 2d 65 35 2c 20 68 65 | 20 69 73 20 6e 6f 74 20 |6-e5, he| is not |
|00002700| 63 68 65 63 6b 20 6d 61 | 74 65 20 62 65 63 61 75 |check ma|te becau|
|00002710| 73 65 20 68 65 20 69 73 | 20 6e 6f 74 20 63 68 65 |se he is| not che|
|00002720| 63 6b 2e 20 49 6e 73 74 | 65 61 64 20 62 6c 61 63 |ck. Inst|ead blac|
|00002730| 6b 20 69 73 20 73 61 69 | 64 20 74 6f 20 62 65 20 |k is sai|d to be |
|00002740| 22 73 74 61 6c 65 20 6d | 61 74 65 22 2c 20 77 68 |"stale m|ate", wh|
|00002750| 69 63 68 20 62 79 20 64 | 65 66 69 6e 69 74 69 6f |ich by d|efinitio|
|00002760| 6e 20 69 73 20 61 20 64 | 72 61 77 2e 40 10 00 49 |n is a d|raw.@..I|
|00002770| 54 68 69 73 20 69 73 20 | 42 6c 61 63 6b 27 73 20 |This is |Black's |
|00002780| 6f 6e 6c 79 20 6d 6f 76 | 65 2c 20 61 6e 64 20 6e |only mov|e, and n|
|00002790| 6f 77 20 57 68 69 74 65 | 20 63 61 6e 20 66 6f 72 |ow White| can for|
|000027a0| 63 65 20 6d 61 74 65 20 | 69 6e 20 74 68 65 20 6e |ce mate |in the n|
|000027b0| 65 78 74 20 6d 6f 76 65 | 3a 00 11 1c 03 03 a0 0c |ext move|:.......|
|000027c0| 0b 54 68 65 20 51 75 65 | 65 6e 00 0f 80 05 00 01 |.The Que|en......|
|000027d0| 08 45 64 01 dd 00 68 95 | ae 00 eb 40 00 00 b1 54 |.Ed...h.|...@...T|
|000027e0| 68 65 20 71 75 65 65 6e | 20 63 6f 6d 62 69 6e 65 |he queen| combine|
|000027f0| 73 20 74 68 65 20 6d 6f | 76 65 6d 65 6e 74 20 6f |s the mo|vement o|
|00002800| 66 20 74 68 65 20 72 6f | 6f 6b 20 61 6e 64 20 62 |f the ro|ok and b|
|00002810| 69 73 68 6f 70 2c 20 61 | 6e 64 20 63 6f 6e 73 65 |ishop, a|nd conse|
|00002820| 71 75 65 6e 74 6c 79 20 | 6d 61 6b 65 73 20 74 68 |quently |makes th|
|00002830| 65 20 71 75 65 65 6e 20 | 73 74 72 6f 6e 67 65 72 |e queen |stronger|
|00002840| 20 74 68 61 6e 20 62 6f | 74 68 2e 20 46 6f 72 63 | than bo|th. Forc|
|00002850| 69 6e 67 20 6d 61 74 65 | 20 77 69 74 68 20 74 68 |ing mate| with th|
|00002860| 65 20 71 75 65 65 6e 20 | 69 73 20 61 20 72 65 6c |e queen |is a rel|
|00002870| 61 74 69 76 65 6c 79 20 | 73 69 6d 70 6c 65 20 74 |atively |simple t|
|00002880| 61 73 6b 3a 0d 0d 5b 44 | 49 41 47 52 41 4d 5d 0d |ask:..[D|IAGRAM].|
|00002890| 40 01 00 27 46 6f 72 63 | 65 73 20 74 68 65 20 62 |@..'Forc|es the b|
|000028a0| 6c 61 63 6b 20 6b 69 6e | 67 20 74 6f 20 74 68 65 |lack kin|g to the|
|000028b0| 20 62 61 63 6b 20 72 61 | 6e 6b 2e 40 05 00 05 4d | back ra|nk.@...M|
|000028c0| 61 74 65 21 00 0f a0 0d | 0b 45 6e 20 50 61 73 73 |ate!....|.En Pass|
|000028d0| 61 6e 74 00 15 c0 02 00 | 01 08 23 62 40 21 32 37 |ant.....|..#b@!27|
|000028e0| 46 40 42 53 56 65 8c 80 | 04 2f 40 00 02 75 54 68 |F@BSVe..|./@..uTh|
|000028f0| 65 20 22 65 6e 20 70 61 | 73 73 61 6e 74 22 20 6d |e "en pa|ssant" m|
|00002900| 6f 76 65 20 69 73 20 61 | 20 73 70 65 63 69 61 6c |ove is a| special|
|00002910| 20 70 61 77 6e 20 6d 6f | 76 65 20 77 68 65 72 65 | pawn mo|ve where|
|00002920| 20 61 6e 20 6f 70 70 6f | 6e 65 6e 74 20 70 61 77 | an oppo|nent paw|
|00002930| 6e 20 69 73 20 63 61 70 | 74 75 72 65 64 3a 0d 20 |n is cap|tured:. |
|00002940| 0d 5b 44 49 41 47 52 41 | 4d 5d 0d 0d 54 68 65 20 |.[DIAGRA|M]..The |
|00002950| 77 68 69 74 65 20 70 61 | 77 6e 20 6f 6e 20 63 34 |white pa|wn on c4|
|00002960| 20 65 66 66 65 63 74 69 | 76 65 6c 79 20 62 6c 6f | effecti|vely blo|
|00002970| 63 6b 73 20 74 68 65 20 | 61 64 76 61 6e 63 65 20 |cks the |advance |
|00002980| 6f 66 20 74 68 65 20 62 | 6c 61 63 6b 20 70 61 77 |of the b|lack paw|
|00002990| 6e 20 6f 6e 20 64 36 2e | 20 49 66 20 42 6c 61 63 |n on d6.| If Blac|
|000029a0| 6b 20 70 6c 61 79 73 20 | 31 2e 20 2e 2e 2e 20 64 |k plays |1. ... d|
|000029b0| 36 2d 64 35 2c 20 57 68 | 69 74 65 20 63 61 6e 20 |6-d5, Wh|ite can |
|000029c0| 63 61 70 74 75 72 65 20 | 74 68 65 20 62 6c 61 63 |capture |the blac|
|000029d0| 6b 20 70 61 77 6e 20 62 | 79 20 70 6c 61 79 69 6e |k pawn b|y playin|
|000029e0| 67 20 32 2e 20 63 34 78 | 64 35 2e 20 54 68 65 72 |g 2. c4x|d5. Ther|
|000029f0| 65 20 69 73 20 6e 6f 74 | 68 69 6e 67 20 73 74 72 |e is not|hing str|
|00002a00| 61 6e 67 65 20 61 62 6f | 75 74 20 74 68 69 73 2e |ange abo|ut this.|
|00002a10| 0d 0d 54 68 65 20 77 68 | 69 74 65 20 70 61 77 6e |..The wh|ite pawn|
|00002a20| 20 6f 6e 20 67 35 20 73 | 69 6d 69 6c 61 72 6c 79 | on g5 s|imilarly|
|00002a30| 20 62 6c 6f 63 6b 73 20 | 74 68 65 20 61 64 76 61 | blocks |the adva|
|00002a40| 6e 63 65 20 6f 66 20 74 | 68 65 20 62 6c 61 63 6b |nce of t|he black|
|00002a50| 20 70 61 77 6e 20 6f 6e | 20 66 37 2c 20 65 78 63 | pawn on| f7, exc|
|00002a60| 65 70 74 20 74 68 61 74 | 20 68 65 72 65 20 42 6c |ept that| here Bl|
|00002a70| 61 63 6b 20 63 61 6e 20 | 70 6c 61 79 20 31 2e 20 |ack can |play 1. |
|00002a80| 2e 2e 2e 20 66 37 2d 66 | 35 2e 20 54 68 69 73 20 |... f7-f|5. This |
|00002a90| 69 73 20 77 68 65 72 65 | 20 74 68 65 20 65 6e 20 |is where| the en |
|00002aa0| 70 61 73 73 61 6e 74 20 | 72 75 6c 65 20 63 61 6e |passant |rule can|
|00002ab0| 20 62 65 20 61 70 70 6c | 69 65 64 2c 20 61 6c 6c | be appl|ied, all|
|00002ac0| 6f 77 69 6e 67 20 57 68 | 69 74 65 20 74 6f 20 22 |owing Wh|ite to "|
|00002ad0| 63 61 70 74 75 72 65 22 | 20 74 68 65 20 70 61 77 |capture"| the paw|
|00002ae0| 6e 20 6f 6e 20 66 35 20 | 62 79 20 70 6c 61 79 69 |n on f5 |by playi|
|00002af0| 6e 67 20 32 2e 20 67 35 | 78 66 36 45 50 2e 20 54 |ng 2. g5|xf6EP. T|
|00002b00| 68 65 20 62 6c 61 63 6b | 20 70 61 77 6e 20 69 73 |he black| pawn is|
|00002b10| 20 73 61 69 64 20 74 6f | 20 68 61 76 65 20 62 65 | said to| have be|
|00002b20| 65 6e 20 63 61 70 74 75 | 72 65 64 20 22 65 6e 20 |en captu|red "en |
|00002b30| 70 61 73 73 61 6e 74 22 | 20 28 73 65 6c 65 63 74 |passant"| (select|
|00002b40| 20 22 52 65 64 6f 20 4d | 6f 76 65 22 20 66 72 6f | "Redo M|ove" fro|
|00002b50| 6d 20 74 68 65 20 22 47 | 61 6d 65 22 20 6d 65 6e |m the "G|ame" men|
|00002b60| 75 29 3a 40 02 01 b0 45 | 6e 20 70 61 73 73 61 6e |u):@...E|n passan|
|00002b70| 74 20 69 73 20 6f 6e 6c | 79 20 6c 65 67 61 6c 20 |t is onl|y legal |
|00002b80| 69 6d 6d 65 64 69 61 74 | 65 6c 79 20 61 66 74 65 |immediat|ely afte|
|00002b90| 72 20 61 6e 20 6f 70 70 | 6f 6e 65 6e 74 20 64 6f |r an opp|onent do|
|00002ba0| 75 62 6c 65 20 6d 6f 76 | 65 2e 20 49 66 20 57 68 |uble mov|e. If Wh|
|00002bb0| 69 74 65 20 68 61 64 20 | 66 6f 72 20 69 6e 73 74 |ite had |for inst|
|00002bc0| 61 6e 63 65 20 70 6c 61 | 79 65 64 20 32 2e 20 4b |ance pla|yed 2. K|
|00002bd0| 64 33 2d 65 33 20 69 6e | 73 74 65 61 64 20 68 65 |d3-e3 in|stead he|
|00002be0| 20 77 6f 75 6c 64 20 6c | 6f 73 65 20 74 68 65 20 | would l|ose the |
|00002bf0| 22 72 69 67 68 74 22 20 | 74 6f 20 63 61 70 74 75 |"right" |to captu|
|00002c00| 72 65 20 74 68 65 20 62 | 6c 61 63 6b 20 70 61 77 |re the b|lack paw|
|00002c10| 6e 20 6f 6e 20 66 35 20 | 65 6e 20 70 61 73 73 61 |n on f5 |en passa|
|00002c20| 6e 74 2e 0d 0d 54 68 65 | 20 65 6e 20 70 61 73 73 |nt...The| en pass|
|00002c30| 61 6e 74 20 72 75 6c 65 | 20 6d 61 79 20 73 65 65 |ant rule| may see|
|00002c40| 6d 20 6c 69 6b 65 20 61 | 20 73 74 72 61 6e 67 65 |m like a| strange|
|00002c50| 20 6d 6f 76 65 2c 20 62 | 75 74 20 69 74 20 77 61 | move, b|ut it wa|
|00002c60| 73 20 69 6e 74 72 6f 64 | 75 63 65 64 20 69 6e 20 |s introd|uced in |
|00002c70| 6f 72 64 65 72 20 74 6f | 20 74 61 6b 65 20 61 77 |order to| take aw|
|00002c80| 61 79 20 73 6f 6d 65 20 | 6f 66 20 74 68 65 20 61 |ay some |of the a|
|00002c90| 64 76 61 6e 74 61 67 65 | 73 20 6f 66 20 64 6f 75 |dvantage|s of dou|
|00002ca0| 62 6c 65 20 70 61 77 6e | 20 6d 6f 76 65 73 2c 20 |ble pawn| moves, |
|00002cb0| 74 68 65 20 72 65 61 73 | 6f 6e 20 62 65 69 6e 67 |the reas|on being|
|00002cc0| 20 74 68 61 74 20 69 74 | 20 69 73 20 73 6f 6d 65 | that it| is some|
|00002cd0| 77 68 61 74 20 75 6e 66 | 61 69 72 20 74 68 61 74 |what unf|air that|
|00002ce0| 20 74 68 65 20 77 68 69 | 74 65 20 70 61 77 6e 20 | the whi|te pawn |
|00002cf0| 6f 6e 20 67 35 20 63 61 | 6e 6e 6f 74 20 73 74 6f |on g5 ca|nnot sto|
|00002d00| 70 20 74 68 65 20 62 6c | 61 63 6b 20 70 61 77 6e |p the bl|ack pawn|
|00002d10| 20 6f 6e 20 66 37 2e 00 | 15 a0 13 0b 54 68 65 20 | on f7..|....The |
|00002d20| 35 30 20 4d 6f 76 65 20 | 52 75 6c 65 00 0d 80 00 |50 Move |Rule....|
|00002d30| 00 01 08 23 63 01 94 01 | 6b 01 c5 40 00 01 bf 54 |...#c...|k..@...T|
|00002d40| 68 65 20 35 30 20 6d 6f | 76 65 20 72 75 6c 65 20 |he 50 mo|ve rule |
|00002d50| 73 74 61 74 65 73 20 74 | 68 61 74 20 61 20 67 61 |states t|hat a ga|
|00002d60| 6d 65 20 69 73 20 64 72 | 61 77 6e 20 69 66 20 6e |me is dr|awn if n|
|00002d70| 6f 20 70 69 65 63 65 73 | 20 68 61 76 65 20 62 65 |o pieces| have be|
|00002d80| 65 6e 20 63 61 70 74 75 | 72 65 64 20 61 6e 64 20 |en captu|red and |
|00002d90| 6e 6f 20 70 61 77 6e 73 | 20 68 61 76 65 20 62 65 |no pawns| have be|
|00002da0| 65 6e 20 6d 6f 76 65 64 | 20 69 6e 20 74 68 65 20 |en moved| in the |
|00002db0| 6c 61 73 74 20 35 30 20 | 6d 6f 76 65 73 2e 0d 0d |last 50 |moves...|
|00002dc0| 5b 44 49 41 47 52 41 4d | 5d 0d 0d 49 6e 20 74 68 |[DIAGRAM|]..In th|
|00002dd0| 65 20 64 69 61 67 72 61 | 6d 2c 20 57 68 69 74 65 |e diagra|m, White|
|00002de0| 20 63 61 6e 6e 6f 74 20 | 77 69 6e 20 75 6e 6c 65 | cannot |win unle|
|00002df0| 73 73 20 42 6c 61 63 6b | 20 6d 61 6b 65 73 20 61 |ss Black| makes a|
|00002e00| 20 6d 69 73 74 61 6b 65 | 2c 20 64 65 73 70 69 74 | mistake|, despit|
|00002e10| 65 20 57 68 69 74 65 27 | 73 20 6d 61 74 65 72 69 |e White'|s materi|
|00002e20| 61 6c 20 61 64 76 61 6e | 74 61 67 65 2e 20 49 66 |al advan|tage. If|
|00002e30| 20 69 74 20 77 61 73 6e | 27 74 20 66 6f 72 20 74 | it wasn|'t for t|
|00002e40| 68 65 20 35 30 20 6d 6f | 76 65 20 72 75 6c 65 2c |he 50 mo|ve rule,|
|00002e50| 20 57 68 69 74 65 20 63 | 6f 75 6c 64 20 70 6c 61 | White c|ould pla|
|00002e60| 79 20 6f 6e 20 61 6c 6d | 6f 73 74 20 65 6e 64 6c |y on alm|ost endl|
|00002e70| 65 73 73 6c 79 20 28 6f | 6e 6c 79 20 62 6f 75 6e |essly (o|nly boun|
|00002e80| 64 65 64 20 62 79 20 74 | 68 65 20 22 44 72 61 77 |ded by t|he "Draw|
|00002e90| 20 62 79 20 72 65 70 65 | 74 69 74 69 6f 6e 22 20 | by repe|tition" |
|00002ea0| 72 75 6c 65 20 77 68 69 | 63 68 20 69 73 2c 20 68 |rule whi|ch is, h|
|00002eb0| 6f 77 65 76 65 72 2c 20 | 6e 6f 74 20 76 65 72 79 |owever, |not very|
|00002ec0| 20 75 73 65 66 75 6c 20 | 69 6e 20 74 68 69 73 20 | useful |in this |
|00002ed0| 73 69 74 75 61 74 69 6f | 6e 29 20 68 6f 70 69 6e |situatio|n) hopin|
|00002ee0| 67 20 66 6f 72 20 42 6c | 61 63 6b 20 74 6f 20 6d |g for Bl|ack to m|
|00002ef0| 61 6b 65 20 61 20 6d 69 | 73 74 61 6b 65 2e 00 18 |ake a mi|stake...|
|00002f00| 1c 03 03 a0 13 0e 34 2e | 20 41 20 53 61 6d 70 6c |......4.| A Sampl|
|00002f10| 65 20 47 61 6d 65 00 55 | 00 6f b4 d6 f2 a8 e6 b3 |e Game.U|.o......|
|00002f20| 02 0b b8 43 ea de e0 38 | e4 7a 42 23 df 2b bd 75 |...C...8|.zB#.+.u|
|00002f30| 4c f2 ae 6a 59 25 45 58 | b5 00 58 93 ac a8 45 83 |L..jY%EX|..X...E.|
|00002f40| d6 1a c4 eb f5 a4 d7 b2 | 58 20 14 36 02 d2 41 93 |........|X .6..A.|
|00002f50| e8 cf 66 ab 7b de ff 3c | 4d ae a0 48 8e 22 db 00 |..f.{..<|M..H."..|
|00002f60| 58 a0 80 a8 88 a9 a4 d0 | 1a a1 00 07 43 40 00 00 |X.......|....C@..|
|00002f70| 9d 57 65 20 63 6f 6e 63 | 6c 75 64 65 20 74 68 69 |.We conc|lude thi|
|00002f80| 73 20 74 75 74 6f 72 69 | 61 6c 20 77 69 74 68 20 |s tutori|al with |
|00002f90| 61 20 73 61 6d 70 6c 65 | 20 67 61 6d 65 20 77 68 |a sample| game wh|
|00002fa0| 65 72 65 20 74 68 65 20 | 76 61 72 69 6f 75 73 20 |ere the |various |
|00002fb0| 63 68 65 73 73 20 72 75 | 6c 65 73 20 77 69 6c 6c |chess ru|les will|
|00002fc0| 20 62 65 20 69 6c 6c 75 | 73 74 72 61 74 65 64 2e | be illu|strated.|
|00002fd0| 20 54 68 65 20 70 75 72 | 70 6f 73 65 20 68 65 72 | The pur|pose her|
|00002fe0| 65 20 69 73 20 6e 6f 74 | 20 74 6f 20 70 6c 61 79 |e is not| to play|
|00002ff0| 20 61 20 73 74 72 61 74 | 65 67 69 63 61 6c 6c 79 | a strat|egically|
|00003000| 20 63 6f 72 72 65 63 74 | 20 67 61 6d 65 2e 40 01 | correct| game.@.|
|00003010| 00 ba 49 74 20 69 73 20 | 67 65 6e 65 72 61 6c 6c |..It is |generall|
|00003020| 79 20 61 20 67 6f 6f 64 | 20 69 64 65 61 20 74 6f |y a good| idea to|
|00003030| 20 67 61 69 6e 20 63 6f | 6e 74 72 6f 6c 20 6f 76 | gain co|ntrol ov|
|00003040| 65 72 20 74 68 65 20 63 | 65 6e 74 72 65 20 69 6e |er the c|entre in|
|00003050| 20 74 68 65 20 73 74 61 | 72 74 20 6f 66 20 61 20 | the sta|rt of a |
|00003060| 67 61 6d 65 20 62 79 20 | 70 6c 61 79 69 6e 67 20 |game by |playing |
|00003070| 64 32 2d 64 34 20 6f 72 | 20 65 32 2d 65 34 2e 20 |d2-d4 or| e2-e4. |
|00003080| 54 68 69 73 20 61 6c 73 | 6f 20 68 61 73 20 74 68 |This als|o has th|
|00003090| 65 20 61 64 76 61 6e 74 | 61 67 65 20 6f 66 20 6f |e advant|age of o|
|000030a0| 70 65 6e 69 6e 67 20 75 | 70 20 66 6f 72 20 74 68 |pening u|p for th|
|000030b0| 65 20 62 69 73 68 6f 70 | 73 3b 20 69 6e 20 74 68 |e bishop|s; in th|
|000030c0| 69 73 20 63 61 73 65 20 | 42 63 31 2e 40 03 00 42 |is case |Bc1.@..B|
|000030d0| 57 68 69 74 65 20 6d 6f | 76 65 73 20 68 69 73 20 |White mo|ves his |
|000030e0| 6b 6e 69 67 68 74 20 6f | 75 74 20 74 6f 20 65 6e |knight o|ut to en|
|000030f0| 61 62 6c 65 20 63 61 73 | 74 6c 69 6e 67 20 61 73 |able cas|tling as|
|00003100| 20 73 6f 6f 6e 20 61 73 | 20 70 6f 73 73 69 62 6c | soon as| possibl|
|00003110| 65 2e 40 05 00 1e 4f 70 | 65 6e 73 20 75 70 20 66 |e.@...Op|ens up f|
|00003120| 6f 72 20 74 68 65 20 62 | 69 73 68 6f 70 20 6f 6e |or the b|ishop on|
|00003130| 20 66 31 2e 40 07 00 b4 | 50 69 6e 73 20 74 68 65 | f1.@...|Pins the|
|00003140| 20 6b 6e 69 67 68 74 20 | 6f 6e 20 63 36 2c 20 77 | knight |on c6, w|
|00003150| 68 69 63 68 20 69 73 20 | 6e 6f 77 20 75 6e 61 62 |hich is |now unab|
|00003160| 6c 65 20 74 6f 20 6d 6f | 76 65 2e 20 42 79 20 64 |le to mo|ve. By d|
|00003170| 6f 69 6e 67 20 73 6f 20 | 74 68 65 20 62 6c 61 63 |oing so |the blac|
|00003180| 6b 20 6b 69 6e 67 20 77 | 6f 75 6c 64 20 62 65 20 |k king w|ould be |
|00003190| 69 6e 20 63 68 65 63 6b | 2c 20 61 6e 64 20 61 63 |in check|, and ac|
|000031a0| 63 6f 72 64 69 6e 67 20 | 74 6f 20 74 68 65 20 72 |cording |to the r|
|000031b0| 75 6c 65 73 20 69 74 20 | 69 73 20 69 6c 6c 65 67 |ules it |is illeg|
|000031c0| 61 6c 20 66 6f 72 20 61 | 20 70 6c 61 79 65 72 20 |al for a| player |
|000031d0| 74 6f 20 65 78 70 6f 73 | 65 20 68 69 73 20 6b 69 |to expos|e his ki|
|000031e0| 6e 67 20 74 6f 20 63 68 | 65 63 6b 2e 40 09 00 2e |ng to ch|eck.@...|
|000031f0| 57 68 69 74 65 20 63 61 | 73 74 6c 65 73 20 61 6e |White ca|stles an|
|00003200| 64 20 62 72 69 6e 67 73 | 20 68 69 73 20 6b 69 6e |d brings| his kin|
|00003210| 67 20 69 6e 74 6f 20 73 | 61 66 65 74 79 2e 40 0a |g into s|afety.@.|
|00003220| 00 58 55 6e 70 69 6e 73 | 20 74 68 65 20 6b 6e 69 |.XUnpins| the kni|
|00003230| 67 68 74 20 6f 6e 20 63 | 36 2c 20 73 69 6e 63 65 |ght on c|6, since|
|00003240| 20 69 74 20 63 61 6e 20 | 6e 6f 77 20 6d 6f 76 65 | it can |now move|
|00003250| 20 77 69 74 68 6f 75 74 | 20 65 78 70 6f 73 69 6e | without| exposin|
|00003260| 67 20 74 68 65 20 62 6c | 61 63 6b 20 6b 69 6e 67 |g the bl|ack king|
|00003270| 20 74 6f 20 63 68 65 63 | 6b 2e 40 0f 00 8b 54 68 | to chec|k.@...Th|
|00003280| 72 65 61 74 65 6e 73 20 | 74 6f 20 63 61 70 74 75 |reatens |to captu|
|00003290| 72 65 20 4e 63 36 2c 20 | 77 68 69 63 68 20 73 68 |re Nc6, |which sh|
|000032a0| 6f 75 6c 64 20 74 68 65 | 72 65 66 6f 72 65 20 6d |ould the|refore m|
|000032b0| 6f 76 65 20 65 76 65 6e | 74 68 6f 75 67 68 20 42 |ove even|though B|
|000032c0| 6c 61 63 6b 20 63 6f 75 | 6c 64 20 72 65 63 61 70 |lack cou|ld recap|
|000032d0| 74 75 72 65 2e 20 54 68 | 69 73 20 69 73 20 62 65 |ture. Th|is is be|
|000032e0| 63 61 75 73 65 20 74 68 | 65 20 6b 6e 69 67 68 74 |cause th|e knight|
|000032f0| 20 69 73 20 73 74 72 6f | 6e 67 65 72 20 74 68 61 | is stro|nger tha|
|00003300| 6e 20 61 20 70 61 77 6e | 2e 40 12 00 2a 4e 6f 77 |n a pawn|.@..*Now|
|00003310| 20 74 68 65 20 70 61 77 | 6e 20 6f 6e 20 64 35 20 | the paw|n on d5 |
|00003320| 63 61 6e 20 63 61 70 74 | 75 72 65 20 65 6e 20 70 |can capt|ure en p|
|00003330| 61 73 73 61 6e 74 3a 40 | 15 00 32 42 6c 61 63 6b |assant:@|..2Black|
|00003340| 20 69 73 20 6e 6f 77 20 | 69 6e 20 63 68 65 63 6b | is now |in check|
|00003350| 20 61 6e 64 20 6f 6e 6c | 79 20 68 61 73 20 6f 6e | and onl|y has on|
|00003360| 65 20 6c 65 67 61 6c 20 | 6d 6f 76 65 3a 40 16 00 |e legal |move:@..|
|00003370| 3c 41 6c 6c 20 6f 74 68 | 65 72 20 6d 6f 76 65 73 |<All oth|er moves|
|00003380| 20 61 72 65 20 69 6c 6c | 65 67 61 6c 20 73 69 6e | are ill|egal sin|
|00003390| 63 65 20 74 68 65 20 6b | 69 6e 67 20 69 73 20 6c |ce the k|ing is l|
|000033a0| 65 66 74 20 69 6e 20 63 | 68 65 63 6b 2e 40 17 00 |eft in c|heck.@..|
|000033b0| 8b 41 67 61 69 6e 20 42 | 6c 61 63 6b 20 69 73 20 |.Again B|lack is |
|000033c0| 69 6e 20 63 68 65 63 6b | 20 62 75 74 20 68 65 72 |in check| but her|
|000033d0| 65 20 68 65 20 68 61 73 | 20 6f 74 68 65 72 20 6f |e he has| other o|
|000033e0| 70 74 69 6f 6e 73 20 74 | 68 61 6e 20 6d 6f 76 69 |ptions t|han movi|
|000033f0| 6e 67 20 74 68 65 20 6b | 69 6e 67 2e 20 48 65 20 |ng the k|ing. He |
|00003400| 63 61 6e 20 66 6f 72 20 | 69 6e 73 74 61 6e 63 65 |can for |instance|
|00003410| 20 61 6c 73 6f 20 70 6c | 61 79 20 31 32 2e 20 2e | also pl|ay 12. .|
|00003420| 2e 2e 20 4e 62 38 2d 64 | 37 20 6f 72 20 31 32 2e |.. Nb8-d|7 or 12.|
|00003430| 20 2e 2e 2e 20 42 63 36 | 2d 64 37 2e 40 19 00 be | ... Bc6|-d7.@...|
|00003440| 4e 6f 74 65 20 74 68 61 | 74 20 42 6c 61 63 6b 20 |Note tha|t Black |
|00003450| 68 61 73 20 6c 6f 73 74 | 20 68 69 73 20 63 61 73 |has lost| his cas|
|00003460| 74 6c 69 6e 67 20 72 69 | 67 68 74 73 20 62 65 63 |tling ri|ghts bec|
|00003470| 61 75 73 65 20 68 69 73 | 20 6b 69 6e 67 20 68 61 |ause his| king ha|
|00003480| 73 20 61 6c 72 65 61 64 | 79 20 6d 6f 76 65 64 2e |s alread|y moved.|
|00003490| 20 49 6e 20 70 61 72 74 | 69 63 75 6c 61 72 2c 20 | In part|icular, |
|000034a0| 42 6c 61 63 6b 20 63 61 | 6e 6e 6f 74 20 63 61 73 |Black ca|nnot cas|
|000034b0| 74 6c 65 20 77 69 74 68 | 20 74 68 65 20 72 6f 6f |tle with| the roo|
|000034c0| 6b 20 6f 6e 20 68 38 20 | 65 76 65 6e 20 74 68 6f |k on h8 |even tho|
|000034d0| 75 67 68 20 74 68 65 20 | 73 71 75 61 72 65 73 20 |ugh the |squares |
|000034e0| 66 38 20 61 6e 64 20 67 | 38 20 61 72 65 20 62 6f |f8 and g|8 are bo|
|000034f0| 74 68 20 75 6e 6f 63 63 | 75 70 69 65 64 2e 40 24 |th unocc|upied.@$|
|00003500| 00 35 57 68 69 74 65 20 | 69 73 20 63 68 65 63 6b |.5White |is check|
|00003510| 20 61 6e 64 20 6d 75 73 | 74 20 63 61 70 74 75 72 | and mus|t captur|
|00003520| 65 20 74 68 65 20 62 6c | 61 63 6b 20 72 6f 6f 6b |e the bl|ack rook|
|00003530| 20 6f 6e 20 64 31 2e 40 | 2c 00 4b 49 6e 20 74 68 | on d1.@|,.KIn th|
|00003540| 65 20 72 65 73 75 6c 74 | 69 6e 67 20 65 6e 64 67 |e result|ing endg|
|00003550| 61 6d 65 20 74 68 65 20 | 67 6f 61 6c 20 66 6f 72 |ame the |goal for|
|00003560| 20 65 61 63 68 20 70 6c | 61 79 65 72 20 69 73 20 | each pl|ayer is |
|00003570| 6e 6f 77 20 74 6f 20 70 | 72 6f 6d 6f 74 65 20 61 |now to p|romote a|
|00003580| 20 70 61 77 6e 2e 40 3c | 00 15 42 6c 61 63 6b 20 | pawn.@<|..Black |
|00003590| 6d 75 73 74 20 64 65 66 | 65 6e 64 20 65 35 2e 40 |must def|end e5.@|
|000035a0| 47 00 53 57 68 69 74 65 | 20 73 61 63 72 69 66 69 |G.SWhite| sacrifi|
|000035b0| 63 65 73 20 74 68 69 73 | 20 70 61 77 6e 2e 20 42 |ces this| pawn. B|
|000035c0| 6c 61 63 6b 20 68 61 73 | 20 74 6f 20 63 61 70 74 |lack has| to capt|
|000035d0| 75 72 65 20 61 6e 64 20 | 74 68 65 6e 20 57 68 69 |ure and |then Whi|
|000035e0| 74 65 20 63 61 6e 20 74 | 61 6b 65 20 65 35 20 61 |te can t|ake e5 a|
|000035f0| 6e 64 20 63 35 2e 40 4d | 00 12 42 6c 61 63 6b 20 |nd c5.@M|..Black |
|00003600| 69 73 20 6c 6f 73 74 20 | 6e 6f 77 2e 40 51 00 20 |is lost |now.@Q. |
|00003610| 4e 6f 77 20 74 68 69 73 | 20 70 61 77 6e 20 77 69 |Now this| pawn wi|
|00003620| 6c 6c 20 73 6f 6f 6e 20 | 70 72 6f 6d 6f 74 65 2e |ll soon |promote.|
|00003630| 40 69 00 2b 49 74 20 69 | 73 20 70 6f 73 73 69 62 |@i.+It i|s possib|
|00003640| 6c 65 20 74 6f 20 68 61 | 76 65 20 6d 6f 72 65 20 |le to ha|ve more |
|00003650| 74 68 61 6e 20 6f 6e 65 | 20 71 75 65 65 6e 2e 40 |than one| queen.@|
|00003660| 6f 00 4b 43 68 65 63 6b | 6d 61 74 65 2e 0d 0d 54 |o.KCheck|mate...T|
|00003670| 68 69 73 20 73 61 6d 70 | 6c 65 20 67 61 6d 65 20 |his samp|le game |
|00003680| 63 6f 6e 63 6c 75 64 65 | 73 20 74 68 69 73 20 74 |conclude|s this t|
|00003690| 75 74 6f 72 69 61 6c 20 | 6f 66 20 74 68 65 20 72 |utorial |of the r|
|000036a0| 75 6c 65 73 20 6f 66 20 | 63 68 65 73 73 2e 00 12 |ules of |chess...|
|000036b0| 1c 03 02 a0 0d 0b 54 68 | 65 20 4b 6e 69 67 68 74 |......Th|e Knight|
|000036c0| 00 12 80 06 00 01 08 43 | 65 02 13 32 01 3c 33 b5 |.......C|e..2.<3.|
|000036d0| e8 40 02 87 40 00 02 81 | 54 68 65 20 6b 6e 69 67 |.@..@...|The knig|
|000036e0| 68 74 20 6d 6f 76 65 73 | 20 69 6e 20 61 20 73 70 |ht moves| in a sp|
|000036f0| 65 63 69 61 6c 20 6d 61 | 6e 6e 65 72 2c 20 77 68 |ecial ma|nner, wh|
|00003700| 69 63 68 20 64 6f 65 73 | 20 6e 6f 74 20 72 65 73 |ich does| not res|
|00003710| 65 6d 62 6c 65 20 74 68 | 61 74 20 6f 66 20 74 68 |emble th|at of th|
|00003720| 65 20 71 75 65 65 6e 2c | 20 72 6f 6f 6b 20 61 6e |e queen,| rook an|
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|000037e0| 20 62 32 2c 20 66 32 2c | 20 62 34 2c 20 66 34 2c | b2, f2,| b4, f4,|
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|000038c0| 20 6d 61 74 65 20 6e 6f | 20 6d 61 74 74 65 72 20 | mate no| matter |
|000038d0| 68 6f 77 20 74 68 65 20 | 6c 6f 6e 65 6c 79 20 6b |how the |lonely k|
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|00003950| 70 74 69 6d 61 6c 6c 79 | 2e 00 1a 1c 03 02 a0 15 |ptimally|........|
|00003960| 0b 44 72 61 77 20 62 79 | 20 52 65 70 65 74 69 74 |.Draw by| Repetit|
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|00003980| 42 1a f8 b9 ba 42 55 65 | 66 67 f4 7d 20 0a 2e 64 |B....BUe|fg.} ..d|
|00003990| 50 10 b9 91 40 40 05 b3 | 40 00 01 cf 20 41 73 20 |P...@@..|@... As |
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|00003a30| 6b 69 6e 67 20 76 65 72 | 73 75 73 20 6b 69 6e 67 |king ver|sus king|
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|00003a80| 20 69 66 20 6f 6e 65 20 | 73 69 64 65 20 69 73 20 | if one |side is |
|00003a90| 6d 61 74 65 72 69 61 6c | 6c 79 20 61 68 65 61 64 |material|ly ahead|
|00003aa0| 20 61 73 20 69 6e 20 73 | 68 6f 77 6e 20 69 6e 20 | as in s|hown in |
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|00003ac0| 49 41 47 52 41 4d 5d 0d | 0d 54 68 69 6e 67 73 20 |IAGRAM].|.Things |
|00003ad0| 6c 6f 6f 6b 20 76 65 72 | 79 20 62 61 64 20 66 6f |look ver|y bad fo|
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|00003af0| 20 68 69 73 20 62 69 73 | 68 6f 70 20 6f 6e 20 66 | his bis|hop on f|
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|00003b10| 61 20 64 65 76 61 73 74 | 61 74 69 6e 67 20 61 74 |a devast|ating at|
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|00003b30| 65 20 71 75 65 65 6e 20 | 61 6e 64 20 72 6f 6f 6b |e queen |and rook|
|00003b40| 73 2e 20 42 6c 61 63 6b | 20 68 6f 77 65 76 65 72 |s. Black| however|
|00003b50| 20 73 61 76 65 73 20 74 | 68 65 20 67 61 6d 65 20 | saves t|he game |
|00003b60| 61 73 20 66 6f 6c 6c 6f | 77 73 3a 80 01 01 40 02 |as follo|ws:...@.|
|00003b70| 00 7a 41 70 70 61 72 65 | 6e 74 6c 79 20 42 6c 61 |.zAppare|ntly Bla|
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|00003bd0| 75 73 6c 79 20 63 61 6e | 6e 6f 74 20 63 68 65 63 |usly can|not chec|
|00003be0| 6b 6d 61 74 65 20 57 68 | 69 74 65 2e 40 03 00 1f |kmate Wh|ite.@...|
|00003bf0| 41 67 61 69 6e 2c 20 57 | 68 69 74 65 20 6f 6e 6c |Again, W|hite onl|
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|00003c10| 04 00 73 49 74 20 6d 61 | 79 20 6e 6f 77 20 62 65 |..sIt ma|y now be|
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|00003c30| 74 75 72 65 20 74 68 65 | 20 6b 6e 69 67 68 74 20 |ture the| knight |
|00003c40| 6f 6e 20 63 34 2e 20 42 | 75 74 20 74 68 69 73 20 |on c4. B|ut this |
|00003c50| 6f 62 76 69 6f 75 73 6c | 79 20 6c 6f 73 65 73 20 |obviousl|y loses |
|00003c60| 61 66 74 65 72 20 34 2e | 20 52 63 38 78 66 38 23 |after 4.| Rc8xf8#|
|00003c70| 2e 20 49 6e 73 74 65 61 | 64 20 42 6c 61 63 6b 20 |. Instea|d Black |
|00003c80| 70 6c 61 79 73 3a c0 05 | 01 00 6b 41 6e 64 20 6e |plays:..|..kAnd n|
|00003c90| 6f 77 20 77 65 20 61 72 | 65 20 62 61 63 6b 20 61 |ow we ar|e back a|
|00003ca0| 74 20 74 68 65 20 70 6f | 73 69 74 69 6f 6e 20 61 |t the po|sition a|
|00003cb0| 66 74 65 72 20 42 6c 61 | 63 6b 27 73 20 66 69 72 |fter Bla|ck's fir|
|00003cc0| 73 74 20 6d 6f 76 65 2c | 20 61 6e 64 20 74 68 65 |st move,| and the|
|00003cd0| 72 65 20 69 73 20 6e 6f | 74 68 69 6e 67 20 57 68 |re is no|thing Wh|
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|00003cf0| 20 74 68 69 73 2e 40 09 | 01 75 42 6c 61 63 6b 20 | this.@.|.uBlack |
|00003d00| 63 61 6e 20 63 6f 6e 74 | 69 6e 75 65 20 6c 69 6b |can cont|inue lik|
|00003d10| 65 20 74 68 69 73 20 61 | 73 20 6c 6f 6e 67 20 61 |e this a|s long a|
|00003d20| 73 20 68 65 20 6c 69 6b | 65 73 2c 20 67 69 76 69 |s he lik|es, givi|
|00003d30| 6e 67 20 63 68 65 63 6b | 73 20 6f 6e 20 65 31 20 |ng check|s on e1 |
|00003d40| 61 6e 64 20 68 34 2e 20 | 53 6f 20 64 65 73 70 69 |and h4. |So despi|
|00003d50| 74 65 20 68 69 73 20 67 | 72 65 61 74 20 6d 61 74 |te his g|reat mat|
|00003d60| 65 72 69 61 6c 20 61 64 | 76 61 6e 74 61 67 65 2c |erial ad|vantage,|
|00003d70| 20 57 68 69 74 65 20 69 | 6e 20 66 61 63 74 20 6e | White i|n fact n|
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|00003d90| 70 6f 72 74 75 6e 69 74 | 79 20 74 6f 20 63 61 70 |portunit|y to cap|
|00003da0| 74 75 72 65 20 6f 6e 20 | 66 38 2e 20 54 68 65 20 |ture on |f8. The |
|00003db0| 67 61 6d 65 20 69 73 20 | 74 68 65 72 65 66 6f 72 |game is |therefor|
|00003dc0| 65 20 61 20 64 72 61 77 | 2e 0d 0d 42 79 20 64 65 |e a draw|...By de|
|00003dd0| 66 69 6e 69 74 69 6f 6e | 20 61 20 67 61 6d 65 20 |finition| a game |
|00003de0| 69 73 20 61 20 22 64 72 | 61 77 20 62 79 20 72 65 |is a "dr|aw by re|
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|00003e30| 74 68 65 20 73 61 6d 65 | 20 70 6c 61 79 65 72 20 |the same| player |
|00003e40| 74 6f 20 6d 6f 76 65 20 | 28 6e 6f 74 20 6e 65 63 |to move |(not nec|
|00003e50| 65 73 73 61 72 69 6c 79 | 20 74 68 72 65 65 20 74 |essarily| three t|
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|00003e70| 0a 00 d6 44 72 61 77 20 | 62 79 20 72 65 70 65 74 |...Draw |by repet|
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|00003ef0| 6f 6e 20 63 61 6e 20 61 | 6c 73 6f 20 6f 63 63 75 |on can a|lso occu|
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|00003f40| 70 72 6f 67 72 65 73 73 | 2e 2e 00 15 a0 13 0e 33 |progress|.......3|
|00003f50| 2e 20 53 70 65 63 69 61 | 6c 20 52 75 6c 65 73 00 |. Specia|l Rules.|
|00003f60| 04 00 00 00 ac 40 00 00 | a6 54 68 65 72 65 20 61 |.....@..|.There a|
|00003f70| 72 65 20 61 20 66 65 77 | 20 73 70 65 63 69 61 6c |re a few| special|
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|00003f90| 6f 6e 20 74 6f 20 74 68 | 65 20 61 6c 72 65 61 64 |on to th|e alread|
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|00003fc0| 43 61 73 74 6c 69 6e 67 | 0d 32 29 20 45 6e 20 70 |Castling|.2) En p|
|00003fd0| 61 73 73 61 6e 74 0d 33 | 29 20 44 72 61 77 20 62 |assant.3|) Draw b|
|00003fe0| 79 20 72 65 70 65 74 69 | 74 69 6f 6e 0d 34 29 20 |y repeti|tion.4) |
|00003ff0| 54 68 65 20 35 30 20 6d | 6f 76 65 20 72 75 6c 65 |The 50 m|ove rule|
|00004000| 0d 35 29 20 44 72 61 77 | 20 4f 66 66 65 72 73 00 |.5) Draw| Offers.|
|00004010| 0d a0 0b 0b 43 61 73 74 | 6c 69 6e 67 00 29 9c 00 |....Cast|ling.)..|
|00004020| 00 01 08 04 74 87 10 11 | 12 15 16 17 24 33 80 87 |....t...|....$3..|
|00004030| cb 12 53 15 59 87 43 51 | 54 56 60 62 65 67 2a 2d |..S.Y.CQ|TV`beg*-|
|00004040| f1 73 76 ba bf 06 b3 40 | 00 06 ad 22 43 61 73 74 |.sv....@|..."Cast|
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|00004110| 20 22 71 75 65 65 6e 20 | 73 69 64 65 73 22 20 62 | "queen |sides" b|
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|00004130| 67 20 74 6f 20 63 31 20 | 61 6e 64 20 74 68 65 20 |g to c1 |and the |
|00004140| 72 6f 6f 6b 20 6f 6e 20 | 61 31 20 74 6f 20 64 31 |rook on |a1 to d1|
|00004150| 3a 0d 0d 5b 44 49 41 47 | 52 41 4d 5d 0d 0d 4e 6f |:..[DIAG|RAM]..No|
|00004160| 74 65 2c 20 74 68 61 74 | 20 63 61 73 74 6c 69 6e |te, that| castlin|
|00004170| 67 20 69 73 20 63 6f 6e | 73 69 64 65 72 65 64 20 |g is con|sidered |
|00004180| 61 20 73 69 6e 67 6c 65 | 20 6d 6f 76 65 20 65 76 |a single| move ev|
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|000041d0| 74 61 74 69 6f 6e 20 66 | 6f 72 20 6b 69 6e 67 20 |tation f|or king |
|000041e0| 73 69 64 65 73 20 63 61 | 73 74 6c 69 6e 67 20 69 |sides ca|stling i|
|000041f0| 73 20 22 4f 2d 4f 22 20 | 61 6e 64 20 66 6f 72 20 |s "O-O" |and for |
|00004200| 71 75 65 65 6e 20 73 69 | 64 65 73 20 63 61 73 74 |queen si|des cast|
|00004210| 6c 69 6e 67 20 69 74 20 | 69 73 20 22 4f 2d 4f 2d |ling it |is "O-O-|
|00004220| 4f 22 2e 0d 0d 43 61 73 | 74 6c 69 6e 67 20 69 73 |O"...Cas|tling is|
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|00004260| 73 66 69 65 64 3a 0d 0d | 31 29 20 4e 65 69 74 68 |sfied:..|1) Neith|
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|00004280| 74 68 65 20 72 6f 6f 6b | 20 69 6e 20 71 75 65 73 |the rook| in ques|
|00004290| 74 69 6f 6e 20 6d 61 79 | 20 68 61 76 65 20 6d 6f |tion may| have mo|
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|000042d0| 72 6f 6f 6b 20 6d 75 73 | 74 20 62 65 20 65 6d 70 |rook mus|t be emp|
|000042e0| 74 79 2e 0d 33 29 20 54 | 68 65 20 6b 69 6e 67 20 |ty..3) T|he king |
|000042f0| 6d 61 79 20 6e 6f 74 20 | 62 65 20 69 6e 20 63 68 |may not |be in ch|
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|00004320| 6b 69 6e 67 20 6d 6f 76 | 65 73 20 6d 61 79 20 6e |king mov|es may n|
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|00004340| 79 20 74 68 65 20 6f 70 | 70 6f 6e 65 6e 74 2e 0d |y the op|ponent..|
|00004350| 35 29 20 54 68 65 20 73 | 71 75 61 72 65 20 62 65 |5) The s|quare be|
|00004360| 74 77 65 65 6e 20 74 68 | 65 20 6b 69 6e 67 27 73 |tween th|e king's|
|00004370| 20 63 75 72 72 65 6e 74 | 20 61 6e 64 20 6e 65 77 | current| and new|
|00004380| 20 6c 6f 63 61 74 69 6f | 6e 20 6d 61 79 20 6e 6f | locatio|n may no|
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|000043b0| 74 68 65 72 2e 0d 0d 49 | 6e 20 74 68 65 20 64 69 |ther...I|n the di|
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|00004430| 79 73 20 52 63 38 2d 61 | 38 20 68 65 20 63 61 6e |ys Rc8-a|8 he can|
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|00004450| 20 73 69 64 65 73 20 28 | 63 6f 6e 64 69 74 69 6f | sides (|conditio|
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|00004480| 20 6b 69 6e 67 20 73 69 | 64 65 20 63 61 73 74 6c | king si|de castl|
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|000044a0| 68 65 20 69 73 20 63 75 | 72 72 65 6e 74 6c 79 20 |he is cu|rrently |
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|000044c0| 6d 20 6b 69 6e 67 20 73 | 69 64 65 20 63 61 73 74 |m king s|ide cast|
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|00004500| 69 74 65 20 62 69 73 68 | 6f 70 20 6f 6e 20 62 34 |ite bish|op on b4|
|00004510| 20 28 63 6f 6e 64 69 74 | 69 6f 6e 20 35 29 2e 0d | (condit|ion 5)..|
|00004520| 0d 43 61 73 74 6c 69 6e | 67 20 6d 75 73 74 20 61 |.Castlin|g must a|
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|00004570| 67 38 20 6f 72 20 63 38 | 20 66 6f 72 20 42 6c 61 |g8 or c8| for Bla|
|00004580| 63 6b 29 2c 20 61 6e 64 | 20 74 68 65 6e 20 6d 6f |ck), and| then mo|
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|000045a0| 6e 20 53 69 67 6d 61 20 | 43 68 65 73 73 20 79 6f |n Sigma |Chess yo|
|000045b0| 75 20 6f 6e 6c 79 20 68 | 61 76 65 20 74 6f 20 6d |u only h|ave to m|
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|000045d0| 65 20 72 6f 6f 6b 20 69 | 73 20 6d 6f 76 65 64 20 |e rook i|s moved |
|000045e0| 61 75 74 6f 6d 61 74 69 | 63 61 6c 6c 79 20 66 6f |automati|cally fo|
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|00004600| 6c 69 6e 67 20 6d 6f 76 | 65 20 6d 61 79 20 73 65 |ling mov|e may se|
|00004610| 65 6d 20 61 20 72 61 74 | 68 65 72 20 73 74 72 61 |em a rat|her stra|
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|00004640| 74 6f 20 61 6c 6c 6f 77 | 20 74 68 65 20 6b 69 6e |to allow| the kin|
|00004650| 67 20 74 6f 20 67 65 74 | 20 69 6e 74 6f 20 73 61 |g to get| into sa|
|00004660| 66 65 74 79 20 77 68 69 | 6c 65 20 61 74 20 74 68 |fety whi|le at th|
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|00004680| 69 6e 67 20 74 68 65 20 | 72 6f 6f 6b 20 69 6e 74 |ing the |rook int|
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|000046a0| 63 61 73 74 6c 69 6e 67 | 20 69 73 20 76 65 72 79 |castling| is very|
|000046b0| 20 75 73 65 66 75 6c 20 | 61 6e 64 20 68 69 67 68 | useful |and high|
|000046c0| 6c 79 20 72 65 63 6f 6d | 6d 65 6e 64 65 64 20 61 |ly recom|mended a|
|000046d0| 6e 64 20 6f 63 63 75 72 | 73 20 69 6e 20 61 6c 6d |nd occur|s in alm|
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|000046f0| 66 20 63 68 65 73 73 2e | 00 14 a0 12 0a 31 2e 20 |f chess.|.....1. |
|00004700| 49 6e 74 72 6f 64 75 63 | 74 69 6f 6e 00 04 00 00 |Introduc|tion....|
|00004710| 07 1b 40 00 07 15 49 66 | 20 79 6f 75 20 61 72 65 |..@...If| you are|
|00004720| 20 6e 6f 74 20 79 65 74 | 20 66 61 6d 69 6c 69 61 | not yet| familia|
|00004730| 72 20 77 69 74 68 20 74 | 68 65 20 72 75 6c 65 73 |r with t|he rules|
|00004740| 20 6f 66 20 63 68 65 73 | 73 2c 20 6f 72 20 79 6f | of ches|s, or yo|
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|00004760| 69 6e 67 20 74 6f 20 70 | 6c 61 79 2c 20 79 6f 75 |ing to p|lay, you|
|00004770| 20 63 61 6e 20 72 65 61 | 64 20 74 68 65 20 66 6f | can rea|d the fo|
|00004780| 6c 6c 6f 77 69 6e 67 20 | 74 75 74 6f 72 69 61 6c |llowing |tutorial|
|00004790| 2e 20 57 65 20 77 69 6c | 6c 20 61 6c 73 6f 20 74 |. We wil|l also t|
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|000047b0| 74 68 65 20 62 61 73 69 | 63 20 75 73 61 67 65 20 |the basi|c usage |
|000047c0| 6f 66 20 53 69 67 6d 61 | 20 43 68 65 73 73 20 77 |of Sigma| Chess w|
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|000047e0| 73 73 20 69 73 20 61 20 | 62 61 74 74 6c 65 20 62 |ss is a |battle b|
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|00004800| 72 73 20 63 61 6c 6c 65 | 64 20 57 68 69 74 65 20 |rs calle|d White |
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|00004830| 6f 6e 20 61 6e 20 38 78 | 38 20 73 71 75 61 72 65 |on an 8x|8 square|
|00004840| 20 62 6f 61 72 64 20 77 | 69 74 68 20 31 36 20 77 | board w|ith 16 w|
|00004850| 68 69 74 65 20 61 6e 64 | 20 31 36 20 62 6c 61 63 |hite and| 16 blac|
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|00004870| 61 72 65 20 69 6e 69 74 | 69 61 6c 6c 79 20 70 6c |are init|ially pl|
|00004880| 61 63 65 64 20 61 73 20 | 73 68 6f 77 6e 20 69 6e |aced as |shown in|
|00004890| 20 74 68 65 20 64 69 61 | 67 72 61 6d 2e 0d 0d 5b | the dia|gram...[|
|000048a0| 44 49 41 47 52 41 4d 5d | 0d 0d 57 68 69 74 65 20 |DIAGRAM]|..White |
|000048b0| 69 73 20 6c 65 61 64 69 | 6e 67 20 28 6d 6f 76 69 |is leadi|ng (movi|
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|000048d0| 65 63 65 73 2c 20 61 6e | 64 20 42 6c 61 63 6b 20 |eces, an|d Black |
|000048e0| 69 73 20 6c 65 61 64 69 | 6e 67 20 74 68 65 20 62 |is leadi|ng the b|
|000048f0| 6c 61 63 6b 20 70 69 65 | 63 65 73 2e 20 57 68 69 |lack pie|ces. Whi|
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|00004960| 72 20 77 68 69 63 68 20 | 69 74 27 73 20 57 68 69 |r which |it's Whi|
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|00004980| 65 2e 74 2e 63 2e 0d 0d | 41 20 70 69 65 63 65 20 |e.t.c...|A piece |
|00004990| 63 61 6e 20 6d 6f 76 65 | 20 74 6f 20 61 6e 20 65 |can move| to an e|
|000049a0| 6d 70 74 79 20 73 71 75 | 61 72 65 20 62 75 74 20 |mpty squ|are but |
|000049b0| 6e 6f 74 20 74 6f 20 61 | 20 73 71 75 61 72 65 20 |not to a| square |
|000049c0| 74 68 61 74 20 69 73 20 | 61 6c 72 65 61 64 79 20 |that is |already |
|000049d0| 6f 63 63 75 70 69 65 64 | 20 62 79 20 61 6e 6f 74 |occupied| by anot|
|000049e0| 68 65 72 20 70 69 65 63 | 65 20 6f 66 20 74 68 65 |her piec|e of the|
|000049f0| 20 73 61 6d 65 20 63 6f | 6c 6f 75 72 2e 20 49 66 | same co|lour. If|
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|00004a30| 6e 20 6f 70 70 6f 6e 65 | 6e 74 20 70 69 65 63 65 |n oppone|nt piece|
|00004a40| 2c 20 74 68 65 20 6f 70 | 70 6f 6e 65 6e 74 20 70 |, the op|ponent p|
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|00004a90| 2e 20 54 68 75 73 20 74 | 68 65 72 65 20 63 61 6e |. Thus t|here can|
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|00004ab0| 68 61 6e 20 6f 6e 65 20 | 70 69 65 63 65 20 6f 6e |han one |piece on|
|00004ac0| 20 61 20 73 71 75 61 72 | 65 2e 0d 0d 20 20 20 20 | a squar|e... |
|00004ad0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004ae0| 20 20 20 20 20 20 20 20 | 20 2d 20 6f 20 4f 20 6f | | - o O o|
|00004af0| 20 2d 0d 0d 48 4f 57 20 | 54 4f 20 52 45 41 44 20 | -..HOW |TO READ |
|00004b00| 54 48 49 53 20 54 55 54 | 4f 52 49 41 4c 0d 0d 54 |THIS TUT|ORIAL..T|
|00004b10| 68 69 73 20 74 75 74 6f | 72 69 61 6c 20 69 73 20 |his tuto|rial is |
|00004b20| 61 20 22 67 61 6d 65 20 | 63 6f 6c 6c 65 63 74 69 |a "game |collecti|
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|00004b50| 62 6f 6f 6b 2e 20 49 74 | 20 69 73 20 64 69 76 69 |book. It| is divi|
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|00004ba0| 65 78 74 20 6f 72 20 61 | 6e 20 61 6e 6e 6f 74 61 |ext or a|n annota|
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|00004bc0| 4f 6e 63 65 20 79 6f 75 | 20 68 61 76 65 20 63 6f |Once you| have co|
|00004bd0| 6d 70 6c 65 74 65 64 20 | 72 65 61 64 69 6e 67 20 |mpleted |reading |
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|00004bf0| 61 6e 20 6d 6f 76 65 20 | 6f 6e 20 74 6f 20 74 68 |an move |on to th|
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|00004c10| 79 20 70 72 65 73 73 69 | 6e 67 20 43 74 72 6c 2d |y pressi|ng Ctrl-|
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|00004c60| 62 75 74 74 6f 6e 73 20 | 3e 20 61 6e 64 20 3e 3e |buttons |> and >>|
|00004c70| 20 61 72 65 20 65 6e 61 | 62 6c 65 64 29 2c 20 79 | are ena|bled), y|
|00004c80| 6f 75 20 73 68 6f 75 6c | 64 20 72 65 70 6c 61 79 |ou shoul|d replay|
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|00004cc0| 73 65 63 74 69 6f 6e 2e | 0d 0d 54 68 65 20 74 65 |section.|..The te|
|00004cd0| 78 74 20 22 5b 44 49 41 | 47 52 41 4d 5d 22 20 6f |xt "[DIA|GRAM]" o|
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|00004cf0| 69 6e 64 69 63 61 74 65 | 73 20 74 68 61 74 20 61 |indicate|s that a|
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|00004df0| 74 68 65 20 74 69 74 6c | 65 20 69 6e 20 74 68 65 |the titl|e in the|
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|00004e10| 72 6c 2d 72 69 67 68 74 | 20 61 72 72 6f 77 20 74 |rl-right| arrow t|
|00004e20| 6f 20 63 6f 6e 74 69 6e | 75 65 2e 00 0d a0 0b 0b |o contin|ue......|
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|00004e40| 45 70 10 12 27 35 41 44 | 66 40 20 51 53 64 e6 e9 |Ep..'5AD|f@ QSd..|
|00004e50| 3c 05 4c 40 00 05 46 54 | 68 65 20 70 61 77 6e 20 |<.L@..FT|he pawn |
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|00004f00| 74 68 61 74 20 73 71 75 | 61 72 65 2e 0d 0d 32 29 |that squ|are...2)|
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|00005150| 68 65 20 73 65 6c 65 63 | 74 65 64 20 70 69 65 63 |he selec|ted piec|
|00005160| 65 20 28 65 2e 67 2e 20 | 67 37 2d 67 38 3d 51 20 |e (e.g. |g7-g8=Q |
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|00005180| 6f 74 69 6f 6e 29 2e 0d | 0d 54 68 75 73 20 61 20 |otion)..|.Thus a |
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|000051b0| 74 20 6f 6e 6c 79 20 66 | 6f 72 77 61 72 64 20 74 |t only f|orward t|
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|000051e0| 62 6f 61 72 64 2e 0d 0d | 5b 44 49 41 47 52 41 4d |board...|[DIAGRAM|
|000051f0| 5d 0d 0d 54 68 65 20 70 | 61 77 6e 20 6f 6e 20 63 |]..The p|awn on c|
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|00005220| 20 62 65 63 61 75 73 65 | 20 69 74 20 68 61 73 20 | because| it has |
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|000052f0| 6c 61 63 6b 20 70 61 77 | 6e 20 6f 6e 20 64 36 2e |lack paw|n on d6.|
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|000053b0| 00 00 01 08 23 63 01 94 | 01 6b 02 a6 40 00 02 a0 |....#c..|.k..@...|
|000053c0| 41 20 67 61 6d 65 20 69 | 73 20 61 6c 73 6f 20 64 |A game i|s also d|
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|000058b0| 42 6c 61 63 6b 20 6d 61 | 6b 65 73 20 61 20 6d 6f |Black ma|kes a mo|
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|000058f0| 41 20 70 69 65 63 65 20 | 63 61 6e 20 6d 6f 76 65 |A piece |can move|
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|00005a30| 65 2e 0d 0d 20 20 20 20 | 20 20 20 20 20 20 20 20 |e... | |
|00005a40| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005a50| 20 2d 20 6f 20 4f 20 6f | 20 2d 0d 0d 48 4f 57 20 | - o O o| -..HOW |
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|00005dd0| 6f 20 63 6f 6e 74 69 6e | 75 65 2e 00 0f a0 0d 0b |o contin|ue......|
|00005de0| 54 68 65 20 50 69 65 63 | 65 73 00 04 00 00 03 e6 |The Piec|es......|
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|00005e10| 74 61 69 6c 73 20 6f 66 | 20 68 6f 77 20 65 61 63 |tails of| how eac|
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|00006060| 31 20 51 75 65 65 6e 0d | 20 20 20 20 32 20 52 6f |1 Queen.| 2 Ro|
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|00006100| 20 74 68 65 20 71 75 65 | 65 6e 20 69 73 20 73 74 | the que|en is st|
|00006110| 72 6f 6e 67 65 72 20 74 | 68 61 6e 20 74 68 65 20 |ronger t|han the |
|00006120| 72 6f 6f 6b 20 69 73 20 | 6e 6f 74 20 62 65 63 61 |rook is |not beca|
|00006130| 75 73 65 20 74 68 65 20 | 71 75 65 65 6e 20 61 73 |use the |queen as|
|00006140| 20 73 75 63 68 20 68 61 | 73 20 68 69 67 68 65 72 | such ha|s higher|
|00006150| 20 72 61 6e 6b 20 74 68 | 61 6e 20 74 68 65 20 72 | rank th|an the r|
|00006160| 6f 6f 6b 20 28 61 73 20 | 69 6e 20 6d 6f 73 74 20 |ook (as |in most |
|00006170| 63 61 72 64 20 67 61 6d | 65 73 20 61 6e 64 20 62 |card gam|es and b|
|00006180| 6f 61 72 64 20 67 61 6d | 65 73 20 73 75 63 68 20 |oard gam|es such |
|00006190| 61 73 20 53 74 72 61 74 | 65 67 6f 29 2e 20 52 61 |as Strat|ego). Ra|
|000061a0| 74 68 65 72 2c 20 74 68 | 65 20 71 75 65 65 6e 20 |ther, th|e queen |
|000061b0| 6d 6f 76 65 73 20 69 6e | 20 61 20 77 61 79 20 73 |moves in| a way s|
|000061c0| 75 70 65 72 69 6f 72 20 | 74 6f 20 74 68 65 20 72 |uperior |to the r|
|000061d0| 6f 6f 6b 2e 00 1d 08 0f | 53 69 67 6d 61 20 43 68 |ook.....|Sigma Ch|
|000061e0| 65 73 73 20 36 14 0c 32 | 30 30 31 2e 31 30 2e 30 |ess 6..2|001.10.0|
|000061f0| 37 00 04 00 00 04 cf 40 | 00 04 c9 54 68 69 73 20 |7......@|...This |
|00006200| 74 75 74 6f 72 69 61 6c | 20 69 73 20 69 6e 74 65 |tutorial| is inte|
|00006210| 6e 64 65 64 20 66 6f 72 | 20 6e 65 77 63 6f 6d 65 |nded for| newcome|
|00006220| 72 73 20 74 6f 20 74 68 | 65 20 77 6f 6e 64 65 72 |rs to th|e wonder|
|00006230| 66 75 6c 20 67 61 6d 65 | 20 6f 66 20 63 68 65 73 |ful game| of ches|
|00006240| 73 2e 20 4c 65 61 72 6e | 69 6e 67 20 74 68 65 20 |s. Learn|ing the |
|00006250| 72 75 6c 65 73 20 6f 66 | 20 63 68 65 73 73 20 69 |rules of| chess i|
|00006260| 73 20 65 61 73 79 20 2d | 20 6d 61 73 74 65 72 69 |s easy -| masteri|
|00006270| 6e 67 20 74 68 65 20 67 | 61 6d 65 20 69 73 20 76 |ng the g|ame is v|
|00006280| 65 72 79 20 64 69 66 66 | 69 63 75 6c 74 20 61 6e |ery diff|icult an|
|00006290| 64 20 72 65 71 75 69 72 | 65 73 20 79 65 61 72 73 |d requir|es years|
|000062a0| 20 6f 66 20 70 72 61 63 | 74 69 63 65 20 61 6e 64 | of prac|tice and|
|000062b0| 20 73 74 75 64 79 2e 20 | 46 6f 72 74 75 6e 61 74 | study. |Fortunat|
|000062c0| 65 6c 79 2c 20 63 68 65 | 73 73 20 68 61 70 70 65 |ely, che|ss happe|
|000062d0| 6e 73 20 74 6f 20 62 65 | 20 63 68 61 6c 6c 65 6e |ns to be| challen|
|000062e0| 67 69 6e 67 20 61 6e 64 | 20 73 74 69 6d 75 6c 61 |ging and| stimula|
|000062f0| 74 69 6e 67 20 66 6f 72 | 20 62 6f 74 68 20 6e 6f |ting for| both no|
|00006300| 76 69 63 65 73 20 61 6e | 64 20 6d 61 73 74 65 72 |vices an|d master|
|00006310| 73 20 61 20 6c 69 6b 65 | 2e 0d 0d 0d 0d 20 20 20 |s a like|..... |
|00006320| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00006330| 20 20 20 20 20 20 20 20 | 20 20 2d 20 6f 20 4f 20 | | - o O |
|00006340| 6f 20 2d 0d 0d 48 4f 57 | 20 54 4f 20 52 45 41 44 |o -..HOW| TO READ|
|00006350| 20 54 48 49 53 20 54 55 | 54 4f 52 49 41 4c 0d 0d | THIS TU|TORIAL..|
|00006360| 54 68 69 73 20 74 75 74 | 6f 72 69 61 6c 20 69 73 |This tut|orial is|
|00006370| 20 61 20 22 67 61 6d 65 | 20 63 6f 6c 6c 65 63 74 | a "game| collect|
|00006380| 69 6f 6e 22 20 64 65 73 | 69 67 6e 65 64 20 61 73 |ion" des|igned as|
|00006390| 20 61 6e 20 6f 6e 6c 69 | 6e 65 20 63 68 65 73 73 | an onli|ne chess|
|000063a0| 20 62 6f 6f 6b 2e 20 49 | 74 20 69 73 20 64 69 76 | book. I|t is div|
|000063b0| 69 64 65 64 20 69 6e 74 | 6f 20 61 20 6e 75 6d 62 |ided int|o a numb|
|000063c0| 65 72 20 6f 66 20 22 73 | 65 63 74 69 6f 6e 73 22 |er of "s|ections"|
|000063d0| 2c 20 65 61 63 68 20 6f | 66 20 77 68 69 63 68 20 |, each o|f which |
|000063e0| 65 69 74 68 65 72 20 63 | 6f 6e 74 61 69 6e 73 20 |either c|ontains |
|000063f0| 74 65 78 74 20 6f 72 20 | 61 6e 20 61 6e 6e 6f 74 |text or |an annot|
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