Author: Eelco de Groot
Date: 07:47:35 11/20/05
Hello, In light of the recent very animated opening discussions, as a curiosity it may be noted that some programs actually seem to be able to find Jeroen's 19.Kb1 on their own! Well at least one I tried.. Be it after 41 minutes and, from a programming or tuning point of view, not very convincing scores for Kb1 or h4, Jeroen claiming h4 should lose and Kb1 win in a typical computer-computer match, Gambit Fruit Beta 3 *does* find the move! Reply at ply 18 is 19..Kh8, maybe a typical computer move without a plan but possibly Black does not have much better? The given main lines after h4 at ply 18 and before as alternative for 19.Kb1 are not so bad it seems to me, the human 19.h4? b3! 20.a3 is probably to difficult to find. As Jeroen Noomen did not put 19.Kb1 in his book I suspect that at least some programs can find this on their own within a few minutes, but I haven't tried any beside Gambit Fruit. Gambit Fruit, Beta 3, Rebel reductions and QS checks = 2 Athlon 2009 MHz, 200 Mb HT [D]r4rk1/2qnbppp/3p4/3Pp1P1/pp2N3/3QBP2/PPP4P/2KR2R1 w - - 2 1 00:00:00.0 -0,43 4 5511 Kb1 a3 g6 fxg6 00:00:00.0 -0,39 4 8022 Qb5 b3 axb3 axb3 00:00:00.0 -0,24 4 12073 a3 Rfb8 h4 bxa3 Qxa3 00:00:00.0 -0,23 5 18293 a3 Rfb8 axb4 Rxb4 Qc3 Qxc3 Nxc3 00:00:00.1 -0,26 6 41136 a3 Rfb8 axb4 Rxb4 Bd2 Rd4 Qc3 00:00:00.2 -0,30 7 126205 a3 Rfb8 Kb1 bxa3 Qxa3 Rb7 Qc3 a3 00:00:00.4 -0,43 8 295165 a3 Rfb8 Kb1 bxa3 Qxa3 Rb5 Nc3 Rb7 Rg4 00:00:00.5 -0,39 8 372599 Kb1 a3 b3 Rfc8 h4 Ra5 Rg2 Qb7 00:00:00.9 -0,34 9 692325 Kb1 a3 b3 Rfc8 h4 Ra5 Rg2 Qb7 Ka1 00:00:01.9 -0,36 10 1471024 Kb1 a3 b3 Rfc8 h4 Ra5 Rg2 Qb7 Ka1 Nb6 00:00:06.0 -0,50 11 4734293 Kb1 Rfc8 Rg2 Ra5 c3 b3 a3 Kh8 h4 Nb6 Bxb6 Qxb6 00:00:10.5 -0,27 11 8491841 h4 Rfb8 Kb1 b3 cxb3 axb3 a3 Qb7 Ka1 Rc8 Rc1 00:00:16.7 -0,27 12 13668413 h4 Rfb8 Kb1 b3 cxb3 axb3 a3 Ra4 Rc1 Qb7 Ka1 Rba8 00:00:36.7 -0,33 13 30681158 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Bxf6 Rg4 Rfb8 Qc3 Qxc3 bxc3 Ra2 h5 Rbb2 00:01:13.9 -0,38 14 62026704 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Bxf6 Rg4 Rfb8 Qc4 Qxc4 Rxc4 Ra1+ Kd2 Rxd1+ Kxd1 Rxb2 Ra4 Bd8 00:02:42.9 -0,23 15 137019289 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Bxf6 Rg4 Rfb8 Rb4 Bxh4 Rxb8+ Rxb8 Qa4 Bf6 Qc6 Qa5 Qxd6 Qa1+ Kd2 Qxb2 00:04:33.6 -0,25 16 230021252 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Rxf6 Rg3 Rff8 h5 Rfb8 Qc3 Qxc3 bxc3 Ra1+ Kd2 Ra2 Rdg1 Bf6 00:08:27.7 -0,30 17 428103660 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Rxf6 Rg3 Rff8 Bh6 Rf7 Qb4 Qd8 Kb1 Bxh4 Rg4 Rfa7 c3 Ra1+ Kc2 00:24:38.8 -0,27 18 1233962095 h4 b3 axb3 axb3 Qxb3 f5 gxf6ep Nxf6 Nxf6+ Rxf6 Bf2 Rff8 Rg4 Kh8 h5 Ra1+ Kd2 Qa5+ Ke2 Rxd1 Kxd1 Qa1+ Ke2 Qh1 Qd3 Qxh5 00:46:02.1 -0,14 18 2295539449 Kb1 Kh8 h4 Ra5 Rg2 Nb6 c4 bxc3ep Bxb6 Qxb6 Qxc3 a3 b3 Rb5 Ka1 Rb8 h5 f5 gxf6ep Bxf6 Nxf6 gxf6 01:19:12.1 -0,17 19 3962878954 Kb1 a3 b3 Rfc8 Rg2 Ra5 h4 Kh8 h5 f5 gxf6ep Nxf6 Nxf6 Bxf6 Kc1 Rb8 Rg4 Qf7 h6 g6 Qc4 Tested here with game history, -instead of just FEN string-, this can sometimes make a difference as I discovered lately, at least with Pro Deo it does sometimes even if you would not suspect it because no move-repetitions in sight. [Event "25th Dutch CC"] [Site "Leiden NED"] [Date "11/11/2005"] [Round "03"] [White "Fruit"] [Black "Diep"] [Result "0-1"] [Opening "Sicilian: Najdorf, Byrne (English) attack"] 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Nbd7 9. g4 b5 10. g5 b4 11. Nd5 Nxd5 12. exd5 Bf5 13. Bd3 Bxd3 14. Qxd3 Be7 15. Rg1 O-O 16. O-O-O a5 17. Nd2 a4 18. Ne4 Qc7 19. h4 b3 20. axb3 axb3 21. Qxb3 Rfb8 22. Qc3 Qb7 23. b3 Rc8 24. Qb2 Nb6 25. Bxb6 Qxb6 26. Rge1 Ra5 27. Kb1 Qa7 28. c4 Ra8 29. Nc3 f5 30. f4 e4 31. Re2 Bd8 32. Nb5 Qa6 33. Nc3 h5 34. Na4 Rb8 35. Nc3 Bb6 36. Nb5 Ra8 37. Nc3 Ra3 38. Kc2 Qa5 39. Ree1 Bf2 40. Rf1 Bc5 41. Rh1 Bb4 42. Na4 Qa7 43. c5 Bxc5 44. Ra1 Rxa1 45. Qxa1 Bd4 46. Qa2 Qb7 0-1
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