Author: Vincent Diepeveen
Date: 09:47:23 05/26/05
Go up one level in this thread
On May 25, 2005 at 22:13:03, K. Burcham wrote: > >In the second game we know that Deep Blue chose a draw move over a winning move. >44.Kf1 draws >44.Kh1 wins Oh count at it it picks Kh1 there. In fact an old version of diep some years ago already did do too. >Let the Hydra team run this position and post the results here. >Some of todays programs will choose the winning move but have a low eval. >I would like to see the Hydra eval on this one. Oh it's in hardware its eval doesn't work like you guess it works. When i tune diep's evaluation function it matters a lot what score it gives in a static position. A year or 15 ago i played a 88+ year old maestro who was long long long ago a very very strong player, one of the strongest in Netherlands as a matter of fact. Of course his friend Max Euwe being the strongest (world champion chess somewhere in the 1930s). This old maestro told me that all what matters is the move that you play in this position. Plans from the past, evaluations, or ideas, they just don't matter. What matters is which move you play. Do you agree? >[Event "IBM Kasparov vs. Deep Blue Rematch"] >[Date "1997.05.04"] >[Round "2"] >[White "Deep Blue"] >[Black "Kasparov, Garry"] >[Result "1-0"] > >1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 >O-O 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 Na5 14. Bc2 c5 15. b3 >Nc6 16. d5 Ne7 17. Be3 Ng6 18. Qd2 Nh7 19. a4 Nh4 20. Nxh4 Qxh4 21. Qe2 Qd8 22. >b4 Qc7 23. Rec1 c4 24. Ra3 Rec8 25. Rca1 Qd8 26. f4 Nf6 27. fxe5 dxe5 28. Qf1 >Ne8 29. Qf2 Nd6 30. Bb6 Qe8 31. R3a2 Be7 32. Bc5 Bf8 33. Nf5 Bxf5 34. exf5 f6 >35. Bxd6 Bxd6 36. axb5 axb5 37. Be4 Rxa2 38. Qxa2 Qd7 39. Qa7 Rc7 40. Qb6 Rb7 >41. Ra8+ Kf7 42. Qa6 Qc7 43. Qc6 Qb6+ 44. Kf1 Rb8 45. Ra6 1-0 > > >Deep Blue - Kasparov,G, IBM Kasparov vs. Deep Blue Rematch 1997 > > [D] R7/1r3kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/6K1 w - - 0 1 > > >12 hours >2200 mhz Athlon 64 >432 hash > >Deep Fritz 8: > >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Bc7 49.Bd5 > +- (1.80) Depth: 11/28 00:00:01 1212kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 > +- (1.80) Depth: 12/34 00:00:01 2046kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Kf8 47.Ra7 Rd8 48.Rb7 > +- (1.80) Depth: 13/35 00:00:02 4078kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Rc7 48.Ra5 > +- (1.81) Depth: 14/40 00:00:05 8226kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Rc7 48.Ra5 > +- (1.81) Depth: 15/40 00:00:11 17571kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Rc7 48.Ra5 > +- (1.81) Depth: 16/50 00:00:23 35019kN >44.Kf1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Rc7 48.Ra5 Ke7 > +- (1.81) Depth: 17/51 00:00:49 73469kN >44.Kf1-- > +- (1.53) Depth: 18/56 00:02:53 256493kN >44.Kf1 Rb8 45.Qd7+ Kg8 46.Ra7 Bf8 47.Qe6+ Kh7 48.Qxb6 Rxb6 49.Bf3 Bd6 50.Bh5 e4 >51.Ke2 Bf4 52.Re7 Rb8 53.Rxe4 Be5 > ± (1.26) Depth: 18/61 00:05:13 460391kN >44.Kh1! > ± (1.27) Depth: 18/61 00:05:56 525950kN >44.Kh1! > +- (1.42) Depth: 18/61 00:06:11 549757kN >44.Kh1! > +- (1.73) Depth: 18/61 00:06:35 583849kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Rc7 48.Ra5 Ke7 49.g3 Rc8 50.Kg2 Kd8 >51.Rxb5 Rb8 52.Ra5 h5 53.Ra7 > +- (1.79) Depth: 19/50 00:08:46 774215kN >44.Kf1! > +- (1.80) Depth: 19/60 00:12:23 1088750kN >44.Kf1 Rb8 45.Qd7+ Kg8 46.Ra7 Bf8 47.Qf7+ Kh7 48.d6 Qe3 49.Bd5 Qc1+ 50.Kf2 Qf4+ >51.Kg1 Qc1+ 52.Kh2 Qf4+ > +- (1.79) Depth: 20/61 00:22:21 1949589kN >44.Kh1! > +- (1.80) Depth: 20/61 00:23:39 2068682kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Rc8 47.Ra7+ Kf8 48.Rd7 Bc7 49.g4 Kg8 50.Bd5+ Kh7 >51.Rf7 e4 52.g5 Be5 53.gxf6 Bxf6 > +- (2.03) Depth: 21/54 00:32:31 2882406kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Re8 47.Ra7+ Re7 48.Ra5 Bc7 49.Rxb5 Ke8 50.g4 Kd8 >51.Kg2 Bd6 52.Bd5 > +- (2.08) Depth: 22/65 00:59:18 5319456kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Re8 47.Ra7+ Re7 48.Ra5 Bc7 49.Rxb5 Ke8 50.Bd5 e4 > +- (2.07) Depth: 23/65 02:07:17 11594078kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Re8 47.Ra7+ Re7 48.Ra5 Bc7 49.Rxb5 Ke8 50.Kg1 Kd8 >51.Kf2 Bd6 52.Bd5 Ra7 53.Bxc4 > +- (2.05) Depth: 24/70 05:12:41 28756721kN >44.Kh1 Rb8 45.Ra6 Qxc6 46.dxc6 Re8 47.Ra7+ Re7 48.Ra5 Bc7 49.Rxb5 Ke8 50.Kg1 Bd6 >51.Bd5 Ra7 52.Bxc4 Kd8 53.Bd5 Kc7 > +- (2.11) Depth: 25/65 12:03:15 65938892kN > >kburcham Obviously fritz is far stronger than deep blue. It doesn't play the drawing move. Vincent
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