Author: blass uri
Date: 21:28:09 12/28/98
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On December 28, 1998 at 14:19:34, blass uri wrote: > >On December 28, 1998 at 07:39:45, Didzis Cirulis wrote: > >>Hi, >> >>I had no much time for chess last days, but still I have played two more games >>of "Chessmaster 6000 against the World" test. In the last game (round 9) CM6000 >>went on for a furious attack, but probably missed a win at some point. Feel free >>to analyze the game and find it out yourself. >> >>Chess Tiger 11.7 is leading 4:1 >> >>[Event "CT 11.7 Test"] >>[Site "Home"] >>[Date "1998.12.27"] >>[Round "9"] >>[White "CM 6000"] >>[Black "CT 11.7"] >>[Result "0-1"] >> >>1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Nf6 7. e5 Ne4 >>8. Re1 Nc5 9. Bg5 Qd7 10. b4 Nxb4 11. e6 Nxe6 12. Ne5 Qd6 13. Qf3 f6 >>14. Qh5+ g6 15. Nxg6 hxg6 16. Qxg6+ Kd7 17. Bxe6+ Kc6 18. Qe4+ Kb6 >>19. Bf4 Qc6 20. Nd2 Qxe4 21. Rxe4 c5 22. a3 f5 23. Re5 Nd3 24. Rb1+ Ka5 >>25. Nc4+ Ka6 26. Bxc8 Rxc8 27. Rxf5 Nxf4 28. Rxf4 b6 29. Rf7 Re8 30. f4 Re4 >>31. Rc1 Re2 32. a4 d3 33. Rd1 Re4 34. Nd2 Rxa4 35. g4 c4 36. Ne4 Bb4 >>37. Rc7 b5 38. Rd7 Rh4 39. h3 Rxh3 40. f5 c3 41. Kg2 c2 42. Rc1 Re3 >>43. Rh1 Ka5 44. Rxa7+ Kb6 45. Rd7 Rxe4 46. Rh6+ Kc5 47. Rc7+ Kd5 >>48. Rh1 Rxg4+ 49. Kf2 Bc5+ 50. Rxc5+ Kxc5 51. Ke3 Rg3+ 52. Kf2 d2 >>53. Kxg3 c1=Q 54. Rxc1+ dxc1=Q 55. Kg2 Qd2+ 56. Kf3 Qd3+ 57. Kg2 Ra2+ >>58. Kh1 Qf1 0-1 >> >>Didzis >> >>http://www.konts.lv/usr/Didzis/index.html >>http://open.konts.lv/usr/Didzis/ > >20.Qf5 is an interesting option >Junior5 likes this move >I am going to check chessmaster's opinion > >Uri I tried the position with chessmaster6000(selective search=10 and it needs some hours to find Qf5 with evaluation of equality at depth 1/11 I decided to give the position after Qf5 to the same chessmaster and the evaluation at depth 1/10 is 0.00 and the evaluation at depth 1/11 is 0.38 When I follow the main line of chessmaster then I find a clear win for white Chessmaster gives Rg8 g3 Bc5 a3 Nc2 Qxc2 Bxe6 Rxe6 Qxe6 Nc3 dxc3 Rb1+ Ka5 Qc3+ Ka4 Qc2+ with 0.00(black can say mate in 2 against itself in the final position and I guess that chessmaster thought to continue Ka5 Qc3+ without seeing the mate(my screen is too short to see all the main line of chessmaster6000) and after more time Rg8 g3 Bd6 Nd2 Bxf4 Qxf4 Bxe6 Qxd4+ Ka6 Qxb4 Rg4 Ne4 b6... with evaluation of 0.38 I see that chessmaster like other programs is not an intelligent searcher. It cannot follow its main important line. I saw a similiar thing with Junior5 when the evaluation was positive for white but when I followed its main line(It is important in this tactical position) then I found a clear advantage for white(more than 0.xx) I can say that at least Junior5 did not miss a simple mate in its main line Uri Uri Uri
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