Author: Uri Blass
Date: 00:28:15 12/25/01
Go up one level in this thread
On December 24, 2001 at 18:00:52, Bruce Moreland wrote:
>On December 24, 2001 at 16:50:47, Thorsten Czub wrote:
>
>>i am sitting here, its christmas. and while it is a little boring, i am doing
>>some old positions on old hardware with all kind of software.
>>how is your todays software and hardware doing in a position from 1995 ????
>>
>>
>>
>>[Event "13th World Microcomputer Chess Championships"]
>>[Site "Paderborn (Germany)"]
>>[Date "Oct 11 1995"]
>>[Round "4"]
>>[White "Chess Genius"]
>>[Black "Chess System Tal"]
>>[Result "0-1"]
>>[ECO ""]
>>[Opening ""]
>>
>>1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cd5 Nd5 6. Bg2 Nb6
>>7. 0-0 Be7 8. a3 0-0 9. b4 Re8 10. Rb1 Bf8 11. d3 a5
>>12. b5 Nd4 13. Nd2 Rb8 14. e3 Ne6 15. Nf3 Ng5 16. Ng5 Qg5
>>17. Ne4 Qd8 18. Qc2 Bg4 19. f4 ef4 20. Rf4 Be6 21. Rf2 f5
>>22. Nc3 Bf7 23. Ne2 Qd7 24. Qc3 Nd5 25. Bd5 Qd5 26. Nd4 Re5
>>27. Qc7 Ra8 28. Qc3 Rae8 29. Nf3 {diagram: black moves} Re3
>>{this move played 1995 on tournament time control on a machine
>>arround 120 Mhz, as a sac against Genius, is still difficult
>>to find for today's chess programs... or what does your
>>program say ?} 30. Be3 Re3 31. Nd4 g6 32. Re2 Bc5 33. Re3 Bd4
>>34. Qc8 Kg7 35. Rbe1 f4 36. gf4 Qf3 37. Qc7 Be3 38. Re3 Qe3
>>39. Kg2 Qe2 40. Kg1 Qd3 41. Qb7 Qa3 42. b6 Qc5 43. Kf1 a4
>>44. Qc7 Qc7 45. bc7 Be6 46. h4 a3 0-1
>>
>>29...Rxe3!
>>
>>Program (16MB RAM) machine solved ?
>>--------------------------------------------------------------
>>Shredder5 Pentium 133 not in 1h
>>Shredder6 Pentium 133 not in 2h
>>Gromit 3.10.2 " (first 4'16", lost,) found again 24'8"
>>Hiarcs7.32 " 37'58"
>>Gambit-Tiger14.6 " 10" (+0.44 after a few minutes ply 14)
>>CSTal2.03 czub2001 Pentium 133 0" (positive score for BLACK!)
>>Zarkov4.5v Pentium 133 14'57"
>>
>>how is your program doing ??
>>which hardware??
>>
>>best wishes, thorsten
>
>I'm surprised other programs have problems with this. Even at the time, this
>was findable, and it seemed to me that it was forced.
Here is Deep Fritz's opinion(p800 64 mbytes hash) about the root position
It finds the move and finds a positive score but it does not see a forced win
for black.
White could play better and Deep Fritz's main line says 31.Rbf1 when the main
line gives black one pawn advantage in the endgame but it is not clear if it is
enough to win the game.
There are also other moves in the game that are not trivial but probably best
31...g6(Deep Fritz need some minutes to find this move) and 32...Bc5
Chess Genius - Chess System Tal
4rbk1/1p3bpp/8/pP1qrp2/8/P1QPPNP1/5R1P/1RB3K1 b - - 0 1
Analysis by Deep Fritz:
29...Qxf3--
+- (3.50) Depth: 1/3 00:00:00
29...Qxf3-- 30.Rxf3
+- (6.28) Depth: 1/3 00:00:00
29...Bxa3!
+- (5.00) Depth: 1/3 00:00:00
29...Bxa3! 30.Nxe5
+- (3.16) Depth: 1/10 00:00:00
29...Rxe3!
+- (2.62) Depth: 1/10 00:00:00
29...Rxe3! 30.Bxe3
± (1.16) Depth: 1/10 00:00:00
29...R5e6!
± (1.00) Depth: 1/10 00:00:00
29...R5e6!
² (0.28) Depth: 1/10 00:00:00
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Be6 31.Nxe6 Rxe6 32.Bd2
² (0.66) Depth: 5/17 00:00:00 9kN
29...R5e7 30.Ng5 Rd8 31.e4 fxe4 32.dxe4 Qd1+ 33.Kg2
² (0.69) Depth: 6/18 00:00:00 24kN
29...R5e7 30.Ng5 Bg6 31.Qb3 Re5 32.Qxd5+ Rxd5 33.Rb3 Red8
² (0.69) Depth: 7/20 00:00:00 99kN
29...R5e7 30.Ng5 Bg6 31.Qb3 Qxb3 32.Rxb3 h6 33.Nf3 Kf7
² (0.66) Depth: 8/24 00:00:00 244kN
29...R5e7 30.Ng5 Bg6 31.Rf4 b6 32.Qb3 Rd7 33.Qxd5+ Rxd5
² (0.66) Depth: 9/24 00:00:01 941kN
29...R5e7 30.Ng5 Bg6 31.Rf4 Qd6 32.Qc4+ Kh8 33.Qd4 Rc7 34.Qxd6 Bxd6 35.Rd4
² (0.56) Depth: 10/29 00:00:03 2418kN
29...R5e7 30.b6 a4 31.Ng5 Rd7 32.Nxf7 Rxf7 33.Rf4 Bc5 34.Rxa4 Qd6 35.Rf4
² (0.62) Depth: 11/28 00:00:12 7893kN
29...R5e7 30.Ng5 Bg6 31.Rf4 Qd6 32.Qc4+ Kh8 33.Qd4 Rc7
² (0.53) Depth: 12/34 00:00:44 28625kN
29...R5e7 30.Bd2 g6 31.Ng5 Rd7 32.d4 a4 33.g4 h6
² (0.53) Depth: 13/36 00:02:15 89122kN
29...Rxe3!
² (0.50) Depth: 13/36 00:02:34 102540kN
29...Rxe3! 30.Bxe3 Rxe3 31.Nd4 g6 32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.d4
² (0.47) Depth: 13/36 00:02:40 106915kN
29...Rxe3 30.Bxe3 Rxe3 31.Nd4 g6 32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.Qxa3
² (0.50) Depth: 14/32 00:03:05 123945kN
29...Rxe3 30.Bxe3 Rxe3 31.Nd4 g6 32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.Qxa3
² (0.37) Depth: 15/34 00:04:38 190284kN
29...Rxe3 30.Bxe3 Rxe3 31.Nd4 f4 32.Rxf4 Bc5 33.Rbf1 g5 34.Rxf7 Rxg3+ 35.hxg3
² (0.28) Depth: 16/37 00:09:21 392283kN
29...Rxe3 30.Bxe3 Rxe3 31.Nd4 f4 32.Rxf4 Bc5 33.Rbf1 g5 34.Rxf7 Bxd4 35.Rf8+
= (0.00) Depth: 17/43 00:21:43 926470kN
29...Rxe3!
= (-0.16) Depth: 18/40 00:51:20 2191573kN
29...Rxe3! 30.Bxe3 Rxe3 31.Rbf1 Rxd3 32.Qxa5 g6 33.Qa8 Kg7 34.a4 Bc5
³ (-0.50) Depth: 18/43 01:25:18 3655374kN
29...Rxe3 30.Bxe3 Rxe3 31.Rbf1 Bc5 32.Qxa5 b6 33.Qa7 Qxf3 34.Rxf3 Re7+
³ (-0.59) Depth: 19/43 02:41:08 6988349kN
29...Rxe3 30.Bxe3 Rxe3 31.Rbf1 Rxd3 32.Qc8 Qc5 33.Qxc5 Bxc5 34.Rc1 Bxf2+ 35.Kxf2
µ (-0.72) Depth: 20/45 05:49:06 15251740kN
(Blass, Tel-aviv 25.12.2001)
Uri
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