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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//en">  <HTML lang="en"> <HEAD> <TITLE>Contents of Figure 3 Move 101 to 172</TITLE> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> <META NAME="viewport" CONTENT="width=device-width, initial-scale=1.0"> <META NAME="Generator" CONTENT="LaTeX2HTML v2022"> <LINK REL="STYLESHEET" HREF="xuegen.css"> <LINK REL="next" HREF="node5_mn.html"> <LINK REL="previous" HREF="node3_mn.html"> <LINK REL="up" HREF="xuegen_mn.html"> <LINK REL="next" HREF="node5_mn.html"> </HEAD> <BODY bgcolor="#ffffff" text="#000000" link="#9944EE" vlink="#0000ff" alink="#00ff00"> <H1><A ID="SECTION00040000000000000000"> Figure 3 Move 101 to 172</A> </H1> a2=15 a8=14 a18=. b6=13 b7=12 b11=. b13=. b17=. b18=. c2=16 c17=. c18=. d7=17 d11=. d16=. d17=. d18=. d19=. e13=. e14=. e15=. e16=66 e17=67 e18=. f12=. f13=. f14=. f15=. f16=63 f17=. g11=72 g12=69 g13=71 g14=61 g15=65 g16=64 g17=. g18=68 h11=70 h12=62 h13=59 h14=. h15=. h17=. h18=. i12=51 i13=58 i14=49 i15=47 k10=52 k11=50 k12=. k13=56 k14=46 k15=54 k16=57 l10=. l11=&utri#triangle; l12=. l13=48 l14=55 l15=53 m3=45 m4=44 m10=. m11=. m12=. m13=. n3=39 n7=40 n12=. n13=. n14=. n15=. n16=. n17=. n18=. o4=38 o5=34 o8=35 o10=42 o12=. o13=. o14=. o15=. o16=. o17=. o18=. p3=32 p4=30 p5=33 p6=18 p7=26 p8=19 p9=43 p10=41 p11=. p12=. p13=. p14=. p15=. p16=. p17=. p18=. q3=36 q5=28 q6=27 q7=25 q8=24 q9=22 q12=. q13=. q14=. q15=. q16=. q18=. r5=31 r6=10 r7=29 r9=20 r11=. r12=. r13=. r14=. r15=. r16=. s4=11 s8=23 s9=21 s13=. s14=. s15=. s16=. <DIV class="CENTER"> STYLE="" SRC="img12.png" ALT="\begin{figure}\gofontsize{15} \begin{displaymath} \showfulldiagram \end{displaym... ...gle}$\ \end{center}\begin{center}Fig.~3 Move 101 to 172 \end{center}\end{figure}"> </DIV> White 3 and 5 suffers a big loss by giving black a good shape. White makes such awkward moves in order to be safe but plays a wrong order. White should play, as in Dia. 10, 1, after black's 2, white 3 and 5 are correct order. After black's 6, white 7 sticking is critical. These two white stones threaten the safety of the central black group and must be saved. If black plays 8 to make itself safe, white 9 cuts the black here. It's very powerful for white to keep itself safe and attack black at the same time. When black plays 14 to strengthen the central group, white could take the opportunity to keep the edge. Compared to Fig. 3, this result is much advantageous for white. a18=. b11=. b13=. b17=. b18=. c17=. c18=. d11=. d16=. d17=. d18=. d19=. e13=. e14=. e15=. e18=. f12=. f13=. f14=. f15=. f17=. g7=13 g17=. h7=11 h14=. h15=. h17=. h18=. i6=10 i7=12 k12=. l10=. l11=. l12=. m6=14 m10=. m11=. m12=. m13=. n4=15 n12=. n13=. n14=. n15=. n16=. n17=. n18=. o12=. o13=. o14=. o15=. o16=. o17=. o18=. p11=. p12=. p13=. p14=. p15=. p16=. p17=. p18=. q12=. q13=. q14=. q15=. q16=. q18=. r11=. r12=. r13=. r14=. r15=. r16=. s13=. s14=. s15=. s16=. <DIV class="CENTER"> STYLE="" SRC="img13.png" ALT="\begin{figure}\gofontsize{10} \begin{displaymath} \showdiagram a-t:1-16 \end{displaymath}\begin{center}Dia.~10 \end{center}\end{figure}"> </DIV> After black 8 gets one white stone, even 12 and 14 become sente, the weak black parts are greatly strengthened and now black has time to fight back. White 11 is a little slow, it is not as good as 31 to make black heavier and easier for white to attack black. But, even after white 19's jump, black still faces great difficulty, if black simply escapes 10 and 19 stones. Overall, white is still leading. Black 20 is a do-or-die move like burning black's own boat. If black doesn't make unusual plays, black has no way to change the situation. At this life-and-death point, the following moves by white are very weak. White should calculate the variations and make face-to-face fight with 20. a18=. b11=. b13=. b17=. b18=. c17=. c18=. d11=. d16=. d17=. d18=. d19=. e13=. e14=. e15=. e18=. f12=. f13=. f14=. f15=. f17=. g17=. h14=. h15=. h17=. h18=. k12=. l10=. l11=. l12=. m10=. m11=. m12=. m13=. n12=. n13=. n14=. n15=. n16=. n17=. n18=. o12=. o13=. o14=. o15=. o16=. o17=. o18=. p11=. p12=. p13=. p14=. p15=. p16=. p17=. p18=. q10=3 q12=. q13=. q14=. q15=. q16=. q18=. r10=2 r11=. r12=. r13=. r14=. r15=. r16=. s10=11 s13=. s14=. s15=. s16=. t7=10 <DIV class="CENTER"> STYLE="" SRC="img14.png" ALT="\begin{figure}\gofontsize{10} \begin{displaymath} \showdiagram k-t:1-19 \end{displaymath}\begin{center}Dia.~11 \end{center}\end{figure}"> </DIV> As in Dia. 11, white 1 is the strongest defense. If black 2 and 4 attempts to connect, white 5 is a good move, if black 8 atari one white stone, after white gets two black stones, not only the left 4 and 8 group is not safe yet, but the central black group also becomes weak. If the result is like this, black doesn't get any advantage here. k12=. l10=. l11=. l12=. m10=. m11=. m12=. m13=. n11=16 n12=. n13=. n14=. n15=. n16=. n17=. n18=. o10=15 o12=. o13=. o14=. o15=. o16=. o17=. o18=. p11=. p12=. p13=. p14=. p15=. q10=3 q11=10 q12=. q13=. q14=. q15=. q16=. q18=. r5=17 r10=2 r11=. r12=. r13=. r14=. r15=. r16=. s10=8 s11=11 s13=. s14=. s15=. s16=. t7=19 t9=12 t10=21 t11=20 t12=13 t13=18 t14=14 <DIV class="CENTER"> STYLE="" SRC="img15.png" ALT="\begin{figure}\gofontsize{10} \begin{displaymath} \showdiagram k-t:1-19 \end{displaymath}\par \begin{center}Dia.~12 \end{center}\end{figure}"> </DIV> If as in Dia. 12, black plays 8 this side, white calmly connects from below. If white 9 is played at position A, black may play 12 to make a ko, the situation will be very complex. If white 9 is erroneously played at 12, after black plays at 19 to atari a white stone, white will get nothing. As in Dia. 12, if ko situation occurs, white's burden is not heavy, even if white fails to win the ko, once white plays position B to escape, the overall advantage is still in white's hand. k12=. l10=. l11=. l12=. m10=. m11=. m12=. m13=. n3=15 n12=. n13=. n14=. n15=. n16=. n17=. n18=. o4=14 o12=. o13=. o14=. o15=. o16=. o17=. o18=. p2=13 p3=12 p4=10 p11=. p12=. p13=. p14=. p15=. q2=11 q12=. q13=. q14=. q15=. q16=. q18=. r11=. r12=. r13=. r14=. r15=. r16=. s13=. s14=. s15=. s16=. <DIV class="CENTER"> STYLE="" SRC="img16.png" ALT="\begin{figure}\gofontsize{10} \begin{displaymath} \showdiagram k-t:1-19 \end{displaymath}\par \begin{center}Dia.~13 \end{center}\end{figure}"> </DIV> If black plays 2 as in Dia. 13, white can play 3. As proceeded up to 15, the black left and right groups are still not safe yet. Black will have no chance to come back. As the game continues in Fig. 3, when white 19 is cut by black, white already suffers. White 27 in Fig. 3 is not good again and white should restrain to play at 29. After black 30 and 32 break the left edge, white's loss increases. When black plays 46 jump, white 47 should be played at 48 to get one stone, black can't empty white's left edge territory completely, then the game is still close. If white lost this game, white 47 would be the cause. Black 50's atari is very powerful. White has to give up two stones. If white plays at 52, black can play at 51 to counter-atari, white has no way to capture black. When the game proceeds to black 72, the central black group is very thick and strong, and have the potential to form some territory. Now, black has the advantage. From black 20, Guo's strong fighting capability was carried out vividly and thoroughly. </BODY> </HTML>