Author: Enrique Irazoqui
Date: 04:00:04 02/19/01
Go up one level in this thread
On February 19, 2001 at 06:22:44, Uri Blass wrote: >On February 19, 2001 at 06:10:55, Enrique Irazoqui wrote: > >>On February 18, 2001 at 23:18:12, Uri Blass wrote: >> >>>On February 18, 2001 at 01:22:38, Tanya Deborah wrote: >>> >>>> >>>> >>>> >>>>Hi to all, >>>> >>>>This is a beautiful game by the Great Master Leonid Stein. >>>>I am interested to know, How many programs can avoid the fatal mistake 21.Qxh1? >>>> >>>>Deep Fritz can avoid that!!!, Deep Fritz can see that Qxb3 is better than Qxh1. >>>> Junior6 and Hiarcs7.32 and Fritz6 can´t avoid that... >>>> >>>>The position is very interesting, in this kind of position you can see some >>>>computer weak points, (the machines sometimes have so much appetite, and can´t >>>>see the great atack by White after move 21. >>>> >>>>Another question? Which program can find 12.Qb3! ???? (with a winning endgame) >>>>- because after change Queens, White is much better. I think there are no >>>>program that can find this move. >>> >>>I think that you are wrong and there are programs that can find 12.Qb3 in less >>>than an hour on fast hardware(I guess that Junior is one of them because >>>Junior5.9 on p200 can find 12.Qb3 in less than 4 hours with 0.00 evaluation) >> >>I didn't try Junior yet, but on a dual P933 with 512 MB hash, Deep Fritz plays >>12.Qb3 after 49 minutes. A beta I have of another "Deep" program takes 92 >>minutes to pick 12.Qb3. > >I guess that this program has also a positive evaluation for Qf3. To a given depth they all do. This is the analysis of Deep Shredder: Engine: Deep Shredder 5* by Stefan Meyer-Kahlen 1.00 0:00 -2.03-- 12.Bg2 Qxg2 (2) 0.1 1.00 0:00 -3.59-- 12.Bg2 Qxg2 (4) 0.2 1.00 0:00 -3.83 12.Bg2 Qxg2 (6) 0.3 1.00 0:00 -2.81++ 12.N2f3 Nxe6 (16) 1.0 1.00 0:00 -2.17++ 12.N2f3 Nxe6 (18) 1.1 1.00 0:00 +0.26 12.N2f3 Nxe6 13.Nxe6 Qxe6+ 14.Be3 (30) 1.8 1.00 0:00 +0.46++ 12.Qf3 Qxf3 13.N2xf3 (76) 4.7 1.00 0:00 +0.80 12.Qf3 Qxf3 13.N2xf3 (93) 5.8 2.00 0:00 +0.64 12.Qf3 Qe5+ 13.Qe2 (312) 19.5 3.00 0:00 +0.87 12.Qf3 Qxf3 13.N2xf3 Nba6 (1.312) 82.0 4.00 0:00 +0.62-- 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Kxe2 (3.137) 196.0 4.00 0:00 +0.52 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 c5 15.Bb5+ Nxb5 16.Nxb5 (4.957) 309.8 5.00 0:00 +0.38 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 c5 15.Nf5 Nxe6 (7.876) 254.0 6.00 0:00 +0.63++ 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 Be4 15.Rg1 (21.273) 272.7 6.00 0:00 +0.77 12.Qf3 Qe5+ 13.Be2 Nxe6 14.Nxe6 Qxe6 15.O-O (36.039) 327.6 7.01 0:00 +0.52-- 12.Qf3 Qxf3 13.N2xf3 c5 14.Bf4 Nba6 15.Bxc7 Nxc7 16.Rc1 cxd4 17.cxd4 (115.226) 387.9 7.01 0:00 +0.51 12.Qf3 Qxf3 13.N2xf3 c5 14.Bf4 Nba6 15.Bxa6 Nxa6 16.Nf5 O-O-O (134.066) 389.7 8.01 0:00 +0.60 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 c5 15.N4b3 Nba6 16.O-O Nxe6 17.Rd1 (252.250) 403.6 9.01 0:01 +0.63 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 c5 15.N4b3 Nba6 16.O-O Nxe6 17.Bb5+ Kf7 18.Re1 (415.396) 415.3 10.01 0:02 +0.58 12.Qf3 Qe5+ 13.Qe2 Qxe2+ 14.Bxe2 Nba6 15.O-O O-O-O 16.Rd1 Nc5 17.Bc4 Kb8 18.b4 (1.015.315) 424.6 11.01 0:08 +0.51 12.Qf3 Qxf3 13.N2xf3 Be4 14.Bg2 c5 15.Nb3 Nxe6 16.O-O h5 17.Re1 hxg4 18.Rxe4 gxf3 19.Bxf3 Rxh3 20.Rxe6 Rxf3 21.Nxc5 (3.477.032) 411.3 12.01 0:16 +0.51 12.Qf3 Qxf3 13.N2xf3 Be4 14.Bg2 c5 15.Nb3 Nxe6 16.O-O h5 17.Re1 hxg4 18.Rxe4 gxf3 19.Bxf3 Rxh3 20.Rxe6 Rxf3 21.Nxc5 (6.964.089) 410.0 13.01 0:46 +0.57 12.Qf3 Qxf3 13.N2xf3 Be4 14.Bg2 c5 15.Nb3 Nxe6 16.O-O h5 17.Re1 hxg4 18.hxg4 f5 19.Be3 (18.441.808) 400.4 14.01 1:58 +0.57 12.Qf3 Qxf3 13.N2xf3 Be4 14.Bg2 c5 15.Nb3 Nxe6 16.O-O h5 17.Re1 hxg4 18.hxg4 Bd5 19.Rd1 Be4 (46.892.419) 397.1 15.01 6:14 +0.44 12.Qf3 Qxf3 13.N2xf3 Nba6 14.Be3 O-O-O 15.Be2 c5 16.Nb3 Nxe6 17.O-O Be4 18.Nfd2 Bc2 19.Rac1 Bd3 20.Bxd3 (145.191.041) 387.8 16.01 18:33 +0.44 12.Qf3 Qxf3 13.N2xf3 Nba6 14.Bc4 O-O-O 15.O-O Nc5 16.b4 Ne4 17.Bb2 h5 18.Rfe1 hxg4 19.hxg4 Nd6 20.a3 Nxc4 (421.801.479) 378.7 17.01 41:43 +0.43 12.Qf3 Qxf3 13.N2xf3 Nba6 14.Bc4 Nc5 15.Be3 Nd3+ 16.Bxd3 Bxd3 17.O-O-O Be4 18.Rhe1 Bd5 19.Bf4 O-O-O (936.740.050) 374.1 17.03 92:13 +0.44++ 12.Qb3 Qxh1 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6 18.Kc4 Nc5 19.Qxc7+ Ke8 (2.095.444.744) 378.6 17.03 112:49 +0.79++ 12.Qb3 Qxh1 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6 18.Kc4 Nc5 19.Qxc7+ Ke8 20.Kxc5 Rc8 21.Qxa7 (2.559.190.040) 378.0 Enrique >It is clear that programs with positive evaluation for Qf3 needs more time >because seeing that Qb3 leads to a draw is not enough for them. > >Uri
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