Author: Uri Blass
Date: 14:48:13 12/24/01
Go up one level in this thread
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
Deep Fritz after 31...g6(PIII800 16 mbytes hash tables) need depth 13 to see
that genius's move(Re2) is bad and prefer to get an endgame that is probably
losing but maybe was the best practical chance against tal but it could not find
it on 133 mhz at tournament time control.
I am not sure if tal's sacrifice is winning(I did not analyze enough to see if
white has not better alternatives at moves 30,31) but I am convinced that black
position is better after the sacrifice.
Note that 32...Bc5 is also not an easy move to find for part of the chess
programs.
Chess Genius - Chess System Tal
[D]5bk1/1p3b1p/6p1/pP1q1p2/3N4/P1QPr1P1/5R1P/1R4K1 w - - 0 1
Analysis by Deep Fritz:
32.Nxf5--
± (0.84) Depth: 1/4 00:00:00
32.Nxf5-- gxf5
³ (-0.69) Depth: 1/5 00:00:00
32.Rc1!
± (0.72) Depth: 1/6 00:00:00
32.Rc1!
+- (1.41) Depth: 1/6 00:00:00
32.Rc1--
± (1.09) Depth: 2/7 00:00:00
32.Rc1-- Bxa3 33.Qxa3
² (0.63) Depth: 2/7 00:00:00
32.Rd1!
± (0.72) Depth: 2/9 00:00:00
32.Rd1! Bc5 33.Nc2
± (1.22) Depth: 2/9 00:00:00
32.Rd1 Bc5 33.Rf4 Re2
± (1.06) Depth: 3/13 00:00:00
32.Rf4!
± (1.09) Depth: 3/13 00:00:00 1kN
32.Rf4! Bc5
± (1.13) Depth: 3/13 00:00:00 1kN
32.Rf4--
± (0.81) Depth: 4/13 00:00:00 4kN
32.Rf4-- Qa2 33.Re1
± (0.78) Depth: 4/13 00:00:00 5kN
32.Rd1!
± (0.81) Depth: 4/13 00:00:00 5kN
32.Rd1! Bc5
± (1.06) Depth: 4/13 00:00:00 6kN
32.Rd1--
± (0.75) Depth: 5/15 00:00:00 13kN
32.Rd1-- Bc5 33.Nc2 Rf3 34.Rdf1 Bxf2+ 35.Rxf2
³ (-0.53) Depth: 5/18 00:00:00 17kN
32.Rbf1!
³ (-0.50) Depth: 5/18 00:00:00 19kN
32.Rbf1! Bc5 33.Rf4 g5 34.Rxf5 Bxd4
² (0.38) Depth: 5/18 00:00:00 22kN
32.g4!
² (0.41) Depth: 5/18 00:00:00 30kN
32.g4! Bc5 33.Nb3 Bxa3 34.gxf5 Rxd3
² (0.53) Depth: 5/18 00:00:00 34kN
32.Rc1!
² (0.56) Depth: 5/18 00:00:00 45kN
32.Rc1! Bxa3 33.Qxa3 Qxd4 34.Rc8+ Re8 35.Rxe8+ Bxe8
± (1.09) Depth: 5/18 00:00:00 49kN
32.Rc1--
± (0.78) Depth: 6/17 00:00:00 67kN
32.Rc1-- Bg7 33.Rf4 g5 34.Rxf5 Qxd4 35.Qxd4
= (-0.22) Depth: 6/17 00:00:00 75kN
32.Qc4!
= (-0.19) Depth: 6/21 00:00:00 128kN
32.Nc2!
= (0.00) Depth: 6/21 00:00:00 178kN
32.Nc2! Rxd3 33.Qc8 Kg7 34.Qc7 Bc5
= (0.13) Depth: 6/21 00:00:00 185kN
32.Re2!
= (0.16) Depth: 6/21 00:00:00 192kN
32.Re2! Rxe2 33.Nxe2 Qc5+ 34.Qxc5 Bxc5+ 35.d4 Bxa3 36.Rd1
² (0.63) Depth: 6/21 00:00:00 200kN
32.Re2 Rxe2 33.Nxe2 Qc5+ 34.Qxc5 Bxc5+ 35.d4 Bxa3 36.Ra1 Bb4
² (0.56) Depth: 7/19 00:00:00 290kN
32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.d4 Qxc3 36.Nxc3 Bd6
² (0.47) Depth: 8/22 00:00:00 550kN
32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.Qxa3 Bxa3 36.Ra1
² (0.50) Depth: 9/22 00:00:01 1210kN
32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.Qxa3 Bxa3 36.Ra1 Bb4 37.Nf4 h5
² (0.38) Depth: 10/26 00:00:03 2435kN
32.Re2 Rxe2 33.Nxe2 Qa2 34.Re1 Qxa3 35.Qxa3 Bxa3 36.Kf2 Bc5+ 37.d4 Bb4
² (0.38) Depth: 11/29 00:00:10 7083kN
32.Re2 Rxe2 33.Nxe2 Qf3 34.Nf4 g5 35.Ng2 Bd5 36.Rb2 Qd1+ 37.Ne1
= (0.19) Depth: 12/31 00:00:22 15579kN
32.Re2--
= (-0.12) Depth: 13/35 00:01:31 62941kN
32.Re2-- Bc5 33.Rxe3 Bxd4 34.Qc8+ Kg7 35.Rbe1 f4 36.gxf4 Qf3 37.Qd7
-+ (-1.78) Depth: 13/35 00:01:42 70481kN
32.Rc1!
-+ (-1.75) Depth: 13/36 00:03:25 143931kN
32.Rc1! Bg7 33.Qc8+ Re8 34.Nxf5 gxf5 35.Qxf5 Bd4
µ (-1.06) Depth: 13/36 00:04:21 182613kN
32.Rc1 Bg7 33.Qc8+ Re8 34.Nxf5 gxf5 35.Qxf5 Bd4 36.Qxd5
µ (-1.03) Depth: 14/34 00:06:51 289157kN
32.Rc1 Bg7 33.Qc8+ Re8 34.Nxf5 gxf5 35.Qxf5 Bd4 36.Qxd5
µ (-1.03) Depth: 15/38 00:15:29 650520kN
(Blass, Tel-aviv 25.12.2001)
Uri
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