Author: Ralph E. Carter
Date: 03:13:02 10/25/98
Go up one level in this thread
On October 25, 1998 at 04:41:34, Amit Kagan wrote:
>The following game is taken from Mark Young's latest match.
>
>[Event "30"av"]
>[Site "?"]
>[Date "1998.10.24"]
>[Round "10"]
>[White "Junior 5.0"]
>[Black "Fritz 5.00/16Bit"]
>[Result "0-1"][ECO "C82"]
>[WhiteElo "2430"]
>[BlackElo "2576"]
>[PlyCount "92"]
>{W=24.5 ply, B=17.0ply} 1. e4 {0} 1... e5 {0} 2. Nf3 {0} 2... Nc6 {0} 3. Bb5 {0
>} 3... a6 {0} 4. Ba4 {0} 4... Nf6 {0} 5. O-O {0} 5... Nxe4 {0} 6. d4 {0} 6...
>b5 {0} 7. Bb3 {0} 7... d5 {0} 8. dxe5 {0} 8... Be6 {0} 9. c3 {0} 9... Bc5 {0}
>10. Nbd2 {0} 10... O-O {0} 11. Bc2 {0} 11... Bf5 {0} 12. Nb3 {0} 12... Bg6 {0}
>13. Nfd4 {0} 13... Bxd4 {0} 14. cxd4 {0} 14... a5 {0} 15. Be3 {0} 15... a4 {0}
>16. Nd2 {0} 16... a3 {0} 17. Nxe4 {0} 17... axb2 {0} 18. Rb1 {0} 18... Bxe4 {0}
>19. Rxb2 {0} 19... Qd7 {0} 20. Bd3 {White out of book 0} 20... Bxd3 {0} 21.
>Qxd3 {0.27/14 53} 21... Rfb8 {Black out of book 0} 22. Rxb5 {0.27/15 65} 22...
>Rxb5 {0.38/14 98} 23. Qxb5 {0.16/14 41} 23... Nxe5 {0.44/15 133} 24. Rb1 {
>(Qb7) 0.18/15 87} 24... Qxb5 {0.16/14 89} 25. Rxb5 {0.19/14 19} 25... c6 {
>0.28/13 105} 26. Rb6 {(Rb4) 0.13/17 87} 26... Nc4 {0.09/13 76} 27. Rxc6 {
>0.10/18 89} 27... Kf8 {(f5) 0.25/12 60} 28. Rc5 {0.16/16 92} 28... Rxa2 {
>0.34/12 55} 29. h4 {(g4) 0.18/15 74} 29... Ra5 {0.31/13 76} 30. Kh2 {
>(Rxa5) 0.09/15 45} 30... Rxc5 {(Ke7) -0.59/15 38} 31. dxc5 {-1.78/20 25} 31...
>Nxe3 {-0.66/13 44} 32. fxe3 {-1.89/20 28} 32... Ke7 {-1.00/17 36} 33. g4 {
>(Kg3) -1.89/26 62} 33... Kd7 {(h6) -1.06/17 38} 34. Kg3 {-1.91/24 42} 34... Kc6
>{-1.16/16 39} 35. g5 {(Kf4) -2.13/26 88} 35... Kxc5 {-1.78/16 20} 36. Kf4 {
>-2.12/25 39} 36... Kc4 {-3.66/15 24} 37. Ke5 {-2.34/26 35} 37... Kd3 {
>(h6) -5.25/14 12} 38. Kxd5 {-2.90/28 48} 38... Kxe3 {-5.25/16 9} 39. Kd6 {
>-3.61/31 46} 39... Kf4 {-6.00/20 11} 40. Ke7 {-3.49/27 18} 40... Kg4 {
>-8.97/22 13} 41. Kxf7 {-3.20/28 12} 41... g6 {-9.41/24 15} 42. Kg7 {
>-10.47/38 41} 42... Kxh4 {-9.44/22 12} 43. Kh6 {-10.47/36 34} 43... Kg4 {
>-9.97/25 81} 44. Kxh7 {-10.55/39 45} 44... Kxg5 {-#11/24 21} 45. Kg7 {
>-10.62/38 38} 45... Kf5 {-#11/21 10} 46. Kf7 {(Kh6) -10.64/33 39} 46... g5 {
>-#10/19 9} 0-1
>
>
>30. Kh2 is a horrible move.
>To me, it is surprising that a very decent chess program makes such a move,
>since after two (obvious and only) captures, the position becomes a won pawn
>ending for black.
>I thought that capture-recapture extensions are supposed to help rejecting such
>moves in a matter of seconds (at low depth).
>Any opinions? results with other programs?
>(I should note that Junior5 avoids 30. Kh2 at depth=16, but IMO it is too slow.)
>
>
>One more thing. From posted games of Junior against CSTal and Fritz, it seems to
>me that Junior's opening book leads to wild positions, that Junior, like most
>(if not all) other programs, can't defend well.
>Any opinions on this? Would using "optimized" book of other program would help?
>
>
>Amit
HIARCS 6 considers 30.Kh2 after about 5 seconds, and rejects it about 2 seconds
later. Fritz5 never considers Kh2.
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