Author: Uri Blass
Date: 02:24:52 04/25/02
Go up one level in this thread
On April 25, 2002 at 05:01:56, Sune Fischer wrote: >On April 25, 2002 at 04:54:39, Uri Blass wrote: > >>On April 25, 2002 at 04:44:15, Sune Fischer wrote: >> >>>On April 24, 2002 at 18:42:25, Uri Blass wrote: >>>>I can add that I was not sure if recursive null move is really productive at >>>>long time control inspite of the fact that it is productive at blitz based on my >>>>tests of many blitz games so I tested it against chezzz at 400 minutes per >>>>game(chezzz is a program of the 3th division) and movei produced the following >>>>game(note that chezzz beated a previous version of movei at the same time >>>>control): >>>> >>>>I did not tell instructions for chezzz about hash tables but I know that chezzz >>>>was using 8 Mbytes hash tables as default value when movei still does not use >>>>hash tables. >>>> >>> >>>You should give Chezzz a bit more than 8 MB hash, if you give it 64 MB or 128 MB >>>it will be stronger, especially for those long time controls. >>> >>>-S. >> >>I read that doubling the hash tables give only 6-7 elo improvement. >>It means that 128Mbytes instead of 8 Mbytes are going to give Chezzz only 24-28 >>elo improvement. >> >>I also wanted to use the same conditions that were used for the previous >>version. >> >>Uri > >I know the hitrate goes up quite a bit, and I don't believe that Chezzz was >intended to run with only 8 MBs of hash. It is just a low default for people >that doesn't have a lot of system memory. >In all fairness, chezzz should not be punished like that just because movei >hasn't got a hash, even if it is "only" 25 elo (I suspect it is more). > >-S. I do not know why do you suspect that it is more. In the second game(10 hours per game) movei is losing the endgame against chezzz so it is 1-1 The previous movei also lost the game with black(10 hours for game) and I think that the latest version played better. I will stop these long time control games and I will try to implement some very small opening book only for the first move and learning to change the first move in every game so movei will be able to play a match of 4 games without repeating the same game twice. Here is the second game that I adjudicate as a win for chezzz. [Event "Computer chess game"] [Site "URI-PC"] [Date "2002.04.24"] [Round "-"] [White "Chezzz_088"] [Black "moveinull224"] [Result "*"] [TimeControl "36000"] 1. d4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 e6 5. O-O Be7 6. Ne5 Bxe2 7. Qxe2 Nbd7 8. Nc3 Nxe5 9. dxe5 Nd7 10. e4 d4 11. Nb5 c5 12. Nd6+ Kf8 13. Bf4 Bxd6 14. exd6 e5 15. Bg3 h5 16. f4 h4 17. fxe5 hxg3 18. e6 gxh2+ 19. Kh1 Kg8 20. exf7+ Kf8 21. e5 Nb6 22. Qb5 Rh6 23. Rae1 Re6 24. Qxc5 Qh4 25. Qb4 Rd8 26. Qb3 Qh6 27. Rf3 Qd2 28. Qxe6 Qxe1+ 29. Kxh2 Qh4+ 30. Kg1 Qe1+ 31. Rf1 Qe3+ 32. Rf2 Qc1+ 33. Kh2 Nc8 34. d7 Ne7 35. Rf3 Qg5 36. Qd6 Qh4+ 37. Kg1 Qe1+ 38. Rf1 Qe3+ 39. Kh2 Qg5 40. e6 Qh6+ 41. Kg1 Qe3+ 42. Kh1 Qh6+ 43. Qh2 Qxh2+ 44. Kxh2 Ng6 45. Kg3 Ke7 46. Re1 Nf8 47. Kf4 a5 48. Kf5 g6+ 49. Kg5 a4 50. g4 Ra8 51. Kh6 Nxe6 52. Kxg6 Rf8 53. Re5 Kxd7 54. Kf6 Nd8 55. Re7+ Kd6 56. g5 Nxf7 57. Rxf7 Rc8 58. g6 Rxc2 59. g7 Rf2+ 60. Kg6 Rg2+ 61. Kh7 Rh2+ 62. Kg8 Rc2 63. Rf6+ Ke7 64. Rh6 Rxb2 * Uri
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