Author: Ricardo Gibert
Date: 20:28:29 03/07/04
Go up one level in this thread
On March 07, 2004 at 23:26:19, Ricardo Gibert wrote:
>On March 07, 2004 at 21:37:26, Mike Byrne wrote:
>
>>I have often heard that chess programmers like to steer their programs away from
>>the King's Indian -- any thoughts on that why it may be true because it seems to
>>be very solid for Black with most of best players playing it.
>
>
>I remember once watching Crafty play a King's Indian on ICC against another
>chess program. It was the classical variation.
>
>After leaving book, Crafty decided it needed to develop its White squared B on
>c8, so it played b6 and Bb7. Against a strong human, this is enough for a
>strategically lost position in the classical variation. IIRC, it later even
>exchanged off this B, which does not help things though technically it made no
>difference at that point.
>
>What neither program understood was that Black's white squared B is a critical
>piece for Black in the classical vaiation. It usually just stays on c8, since it
>is already on its best square there. This piece is destined to sac' itself on
>h6.
I meant h3, not h6.
> Without this possibility, Black's attack on the K-side slows down too much
>or is doomed to fail entirely.
>
>The other chess program did not know how to attack on the Q-side and shifted
>about, but nevertheless managed a little progress, but eventually in it's
>meanderings, it managed to box it's Q in corner on a3, which put it out of play.
>Crafty managed to take advantage of this by sac'ing to open up the K-side to
>manage some interesting counterplay and went on to win.
>
>The game was quite comical to watch. Both programs were clueless and it was
>evident that the King's Indian is an opening that programs should avoid playing
>against humans. At least the more closed variations like the classical variation
>should be avoided.
>
>
>>
>>Coincidently, I recently picked up Gligoric's Kings Indian Defence: Mar Del
>>Plata Variation - Svetozar is an excellent chesswriter and I enjoyed his writing
>>style so much I also picked up his "I Play Against Pieces". His style does not
>>overwhelm you with variations but actually uses the words to express the ideas
>>behind his thinking. He is clearly one of the best chess writers.
>>
>>
>>Below is game against Fischer that he won. This yet another game that I had to
>>correct from Chesslib database. The game actually ended at move 44. - the
>>database shows Fischer getting mated which simply did not happen. I sprinked
>>juts a couple the annotations from Gligoric's book to show you his style. The
>>game in the book is much more heavily annotated.
>>
>>
>>[Event "Warna"]
>>[Site "Warna"]
>>[Date "1962.??.??"]
>>[Round "?"]
>>[White "Fischer, Robert J"]
>>[Black "Gligoric, Svetozar"]
>>[Result "0-1"]
>>[ECO "B80"]
>>[PlyCount "88"]
>>[EventDate "1962.??.??"]
>>[Source "www.ChessliB.no"]
>>[SourceDate "2003.02.24"]
>>
>>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Be7 8. O-O
>>O-O 9. f4 Qc7 10. g4 Nc6 11. Nxc6 bxc6 12. g5 Nd7 13. f5 Re8 {Trying to orgnaize
>>some kind of defense against the threat of f5-f6 (Gligoric)}14. Kh1 Bf8 15.
>>Bf4 Ne5 16. f6 g6 17. h4 a5 18. h5 Ba6 19. Re1 Qb6 20. hxg6 fxg6 21. Bxe5
>>{Removing the knight that might come to f7 (Gligoric)} dxe5
>>22. Qf3 Ra7 23. Bf1 Rf7 24. Bxa6 Qxa6 25. Qg3 Qb6 26. Qxe5 Qxb2 27. Rad1 h6 28.
>>Re3 Bb4 29. gxh6 Qxc2 30. Rg1 Kh7 31. Qg3 Rg8 32. e5 Bxc3 33. Rxc3 Qe4+ 34. Rg2
>>Rd8 35. Re3 Qb1+ 36. Kh2 Rd1 37. Qg4 Rh1+ 38. Kg3 Qc1 {
>>
>>[d]8/5r1k/2p1pPpP/p3P3/6Q1/4R1K1/P5R1/2q4r w - - 0 39
>>Although Ree2 might have offered tougher resistance. (Byrne)
>>
>>39. Re4? (39. Ree2 Rd7 40.
>>Qe4 Rh5 41. Rc2 Qa3+) 39... Rd7 40. Qe2 Qg5+ 41. Qg4 Rd3+ 42. Kf2 Rd2+ 43. Kg3
>>Rxg2+ 44. Kxg2 Qc1 0-1
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