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- History of MacChess - Wim van Beusekom
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- TOBBER Atari Rotterdam 1989
-
- I entered my TOBBER (Atari) chess program in the Dutch Computer Chess
- Championships in 1989 and 1990. These were organized by the CSVN
- (Computer Chess Association Netherlands).
-
- In 1989 there were 14 programs and I was 11th with 2.5 points out of 7.
- in 1990 there were 16 programs and I was 10th with 3 points out of 7.
-
- After this I stopped programming for a while.
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- MacChess 1.0 Rotterdam December 1994
-
- In April 1993 I began converting TOBBER to an Apple Macintosh.
- MacChess 1.0 is nearly identical to TOBBER (Atari). On a Classic II
- MacChess 1.0 is comparable to the Kasparov TEAM-MATE chess computer
- and on a Centris 610 to the Mephisto MMII.
-
- MacChess 1.0 was developed in THINK C,
- the interface has been written in C and
- its search routines were written in assembler.
-
- In October 1994 I visited the 14th Dutch Computer Chess Championship
- and was inspired to play again at the 15th Championship in 1995.
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- MacChess 2.0 Rotterdam December 1995
-
- On November 1995 I entered the 15th Open Dutch Computer Chess Championship.
- There were 20 programs and I was 12th with 5.5 points out of 11 games.
- MacChess ran on a Macintosh Centris 610 (20 Mhz).
- This was the best result to date. See the results in the folder NK 1995.
-
- MacChess 2.0 was tactically improved by using null-moves and better
- move ordering techniques.
-
- Positional play and end games are still weak.
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- MacChess 2.5 Rotterdam June 1996
-
- The chess engine was slightly improved, and many enhancements were made
- in the user interface and import/export facilities.
-
- Major New features:
- - Sliding pieces
- - selectable board patterns & a new piece set
- - PGN/EPD import/export
- - separate mating module
- - batch position analysis.
- - greatly enhanced game review capabilities
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- ====================================================================
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- postal address:
- Wim van Beusekom
- Hogenbanweg 72d
- 3028 GP Rotterdam.
- The Netherlands
-
- email address: beusekom@knoware.nl
-