Author: Mike Byrne
Date: 09:34:30 05/25/02
Crafty Winning Game 2 in Another Surprising Battle - Tiger Fighting for the Draw
Crafty is leading the match 1-0.
The second game of the Frank J. Byrne Memorial Computer Chess Challenge pitting
the world's best freely available commercial computer chess program -- Chess
Tiger v14 by Christophe Theron against the world's best freely available
non-commercial computer chess program - Crafty v18.15 by Robert Hyatt, is now
being waged in cyberspace just outside of Philadelphia. The second game is just
as surprising as the first game, with the underdog Crafty again holding the
upper hand against the best program in the world – Chess Tiger.
Tiger played a suspect move 17. …Ke7 that just didn’t look right to this
amateur’s eye. Several moves later Crafty played the freeing 23. e4. By move
24, both sides favored Crafty’s position with an ~ 1.3 to 1.5. Tiger’s position
deteriorated further when it forced to exchange a rook for a bishop and a pawn
to prevent further losses at move with 33. …Rxd4. Tiger search depth is
averaging in the 15-17 ply range. Crafty had a few searches that were only in
the 11-13 ply range with the more recent searches in the 14-16 ply range.
However the game is not over yet and Tiger still has drawing chances. A win
here by Crafty would be very surprising and Crafty would take a 2-0 lead in this
first ever the Frank J. Byrne Memorial Computer Chess Challenge.
Like the days of yore, it is the first program to win 10 games and the program
must have a margin of victory of 2 games. A winning score could be 10-8 or
21-19 it all depends on how the games go. Draws do not count - it just wins
that count.
For further background information on this match, please see this link.
http://www.talkchess.com/forums/1/message.html?231517
The game moves thus far in game 2:
[Event "Frank J. Byrne Memorial Computer Chess Challenge"]
[Site "Philadelphia, PA"]
[Date "2002.05.24"]
[Round "2"]
[White "Crafty v18.15"]
[Black "Chess Tiger v14"]
[Result "*"]
1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Qc2 b5 6. b3 Bg4 7. Nge2 Nbd7 8.
h3 Bh5 9. Nf4 Bg6 10. Nxg6 hxg6 11. Bb2 Qc7
{
Both sides out of book with this move, both side showing white is ahead with
~+.7.
}
12. cxd5 cxd5 13. Rc1 Qb7 14. Bd3 e6 15. O-O Bd6 16. a4 b4 17. Ne2 Ke7
{
that doesn't look correct
}
18. Ng3 Qb8 19. f4 g5 20. fxg5 Bxg3 21. gxf6+ Nxf6 22. Rf3 a5 23. e4
{
!! Nothing else to say. More natural for humans to play this move than
computers.
}
23... Nxe4 24. Bxe4 dxe4
{
Tiger's eval had gone to +.15 for Crafty on move 21. ...Nf6, Crafty never
faltered and with move 24 moves went to +1.25.. tiger now concurs with an eval
of +1.50 with advantage to white.
}
25. Qxe4 Rh4 26. Qe2 f6 27. Re3 Kf8 28. Rc6 Bh2+ 29. Kh1 Bf4 30. Rexe6 Qd8
31. Qc4 Bg3 32. Qd3 Be5 33. Qb5 Rxd4 34. Qc5+ Kg8 35. Bxd4 Qxd4 36. Qxd4
Bxd4 37. g4 Bb2 38. Ra6 Rd8 39. Rad6 Rc8 40. Re7 Bc1 41. h4 Rc5 42. Rdd7
Bh6 43. Ra7
{
Crafty eval +4.13 ; Tiger eval +2.74 For the second game in a row, Tiger has no
prospect at winning and is fighting for a draw to prevent Crafty from picking up
the point..
}
*
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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