Author: martin fierz
Date: 04:26:40 03/31/04
Go up one level in this thread
On March 31, 2004 at 06:31:28, Tord Romstad wrote:
>I just completed a 100-game blitz match between Gothmog 0.4.7 and Crafty 19.9
>(yes, I know it is not the most recent version). In one of the games, the
>following position arised:
>
>[D]r2qr3/4bpkp/p2p2pN/1p1P4/2pNP3/1b5P/1P1Q1PP1/R3R1K1 w - -
>
>Here, Gothmog surprised me (and Crafty) by playing the knight sac Nxf7!?. It
>plays this after only 7 plies and 1 second, almost certainly as a speculative
>sac, but still keeps it with a +1 score after 20 minutes and 16 plies. In
>the game, Gothmog quickly got a winning attack after 24. Nxf7 Kxf7 25. Ne6 Qc8
>26. Qh6 Bf8 27. Qxh7+ Kf6 28. Re3.
>
>Which other engines like Nxf7? Is the sac correct?
martin 1.0 thinks: this looks horrible for black. after 27. ...Kf6 it must be
game over, Q+R+N coordinating in an attack against an awful king with no serious
protection. so before that, you have to look for alternatives, 25. ...Qc8 is not
quite forced, check that position. but i'd be very surprised if this wasn't just
great for white. muse 0885 plays Nxf7 at depth 5 with a +1.3 score for white.
but try ...Qb6 instead of Qc8 and after Qh6 Reb8, to evacuate the king in case
of Qxh7+ Ke8 Qxg6+ Kd7 - in this position there is still a lot of fight left.
with the king on f6 it's (rather obviously to a human) totally hopeless.
cheers
martin
>
>Another cool game from the match was the following, which is probably
>not good, but amused me because of its "19th century look". It was played
>in Gothmog's new favorite opening, the King's gambit:
>
>[Event "Computer chess game"]
>[Site "aload.uio.no"]
>[Date "2004.03.31"]
>[Round "63"]
>[White "Gothmog 0.4.7"]
>[Black "Crafty-19.9"]
>[Result "1-0"]
>[TimeControl "300+1"]
>
>1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6 5. d4 Bb4 6. e5 Ne4 7. Kf1 Nxc3 8.
>bxc3 Bxc3 9. Ba3 b5 10. Bd6 bxc4 11. Qg4 g5 12. Nh3 Bxa1 13. Nxf4 h6 14.
>Nh5 Qb6 15. Qf5 Ba6 16. g4 Qxd4 17. Qf6 Qd1+ 18. Kg2 Qxc2+ 19. Kh3 Qd3+ 20.
>Ng3 Qxd6 21. Qxd6 Bb2 22. Qf6 d5 23. Qxh8+ Kd7 24. Qf8 Kc7 25. Qd6+ Kb6 26.
>Qb4+ Bb5 27. Qxb2 Nd7 28. Rb1 Kc7 29. Qb4 Nxe5 30. Nf5 Ng6 31. Qd6+ Kb7 32.
>Nd4 Nf4+ 33. Kg3 Ne2+ 34. Nxe2 Rc8 35. a4 a6 36. axb5 cxb5 37. Qxd5+ Kb6
>38. Nc3 h5 39. Nxb5 Rc5 40. Qd8+
>{Black resigns} 1-0
>
>Position after white's 17th move:
>
>[D]rn2k2r/p2p1p2/b1pB1Q1p/4P1pN/2pq2P1/8/P1P4P/b4K1R b kq -
>
>Tord
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