Author: Dan Homan
Date: 07:41:05 06/13/99
Here is an interesting game played on ICC between my program, EXchess, on
a Cel/400 and "Talmoves" which is CS-Tal II on a PII/300. EXchess got
clobbered in this one, but I think it is an interesting King-Safety
example. I thought my King safety code was pretty good until this game.
When does your program realize it is in serious trouble (as black)?
[Event "ICC 5 0"]
[Site "Internet Chess Club"]
[Date "1999.06.11"]
[Round "-"]
[White "Talmoves"]
[Black "EXchess"]
[Result "1-0"]
[WhiteElo "2367"]
[BlackElo "2506"]
[Opening "Sicilian: Pelikan, Chelyabinsk variation"]
[ECO "B45"]
[NIC "SI.37"]
[Time "22:41:15"]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 d6 7. Bf4 e5 8.
Bg5 a6 9. Na3 b5 10. Bxf6 gxf6 11. Nd5 Bg7 12. c3 Ne7 13. Nxe7 Qxe7 14. Nc2
f5 15. exf5 O-O 16. Ne3 Bb7 17. Be2 Rad8 18. Nd5 Qg5 19. h4 Qh6 20. g4 Bf6
21. Nxf6+ Qxf6 22. Bf3 e4 23. Bg2 d5 24. Qd2 d4 25. Qg5+ Qxg5 26. hxg5 d3
27. Rh6 Rd7 28. Rd1 Kh8 29. Bf1 Rg8 30. Rh5 Rd6 31. Kd2 Re8 32. Re1 Bd5 33.
Re3 Bxa2 34. Reh3 Kg8 35. Rxh7 Kf8 36. f6 Rxf6 37. gxf6 e3+ 38. fxe3 Re6 39.
Rh8# {Black checkmated} 1-0
Here are EXchess' evaluations during the critical part of the game:
whisper -0.14, 7 ply, nps: 85569, 31. ... Re8
whisper -0.72, 7 ply, nps: 87430, 32. ... Bd5
whisper -1.30, 8 ply, nps: 81096, 33. ... Ba2
whisper MATE-(10) 9 ply, nps: 124059, 34. ... Kg8
MATE-(10) means mate in 10 ply (5 moves). EXchess thinks things are
getting about a pawn worse, but doesn't see major trouble until
suddenly seeing the mate. How do other programs do with these
positions? EXchess typically spent around 7 seconds per move in this
part of the game.
- Dan
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