Author: Uri Blass
Date: 22:24:34 11/21/05
Go up one level in this thread
On November 21, 2005 at 19:26:59, Geo Disher wrote: >On November 21, 2005 at 18:24:30, Uri Blass wrote: > >>On November 21, 2005 at 14:55:58, Arifur Rahman wrote: >> >>>The position after 39 Qg3 seems to be a difficult for the chess programs, not >>>only for Fritz 9. >>> >>>I checked the position with Shredder 9. >>> >>>After 8 minutes at depth 19 Shredder 9 likes the move 39...Bc2?? also. Shredder >>>rates the move as the second best (with eval -2.6) after the first choice Qg3. >>> >>>Maybe both Fritz and Shredder would discard the move totally with faster >>>hardware at deeper depth. Maybe Fritz didnt have enough time at move 39, just >>>before the time control. >>> >>> >>>/Arifur >> >>It seems to be easy for fruit. >>Qxg3+ has always big advantage relative to the alternatives >>and Bc2 drop from second place(depth 14) to 9th place(depth 16) and lose it >>place in the top 9 (depth 17) >> >>depth 14: >> >>Ponomariov,R - Fritz, Man vs Machine II 2005 >>6k1/5p2/pn1p4/N2p2p1/PP1Pp2q/1BrbP1QP/6K1/4R3 b - - 0 1 >> >>Analysis by Fruit 2.2.1: >> >>1. -+ (-2.27): 39...Qxg3+ 40.Kxg3 f5 41.Kf2 f4 42.Bd1 Bc2 43.Bxc2 Rxc2+ 44.Re2 >>fxe3+ 45.Kxe3 Rc3+ 46.Kd2 Rd3+ 47.Ke1 Rxh3 48.Rg2 Nxa4 49.Rxg5+ Kf7 50.Rxd5 >>2. -+ (-1.76): 39...Bc2 40.Qxh4 gxh4 41.Rc1 Rxb3 42.Nxb3 Bxb3 43.a5 Nc4 44.Kf2 >>Ba4 45.Rg1+ Kf8 46.Rg4 Nb2 47.Rxh4 Nd3+ 48.Ke2 Nxb4 >>3. -+ (-1.59): 39...Qh6 40.h4 Qxh4 41.Qxh4 gxh4 42.Kh3 Bc4 43.Bd1 Rc1 44.Rg1+ >>Kh7 45.Kg2 Rc3 46.Kf2 h3 47.Nc6 >>4. -+ (-1.52): 39...Nc4 40.Qxh4 gxh4 41.Bxc4 dxc4 42.Nb7 d5 43.Nd6 Rc2+ 44.Kg1 >>Rb2 45.Ne8 Rxb4 46.Nf6+ Kg7 47.Nxd5 Rb2 48.Rc1 >>5. µ (-1.35): 39...Kh7 40.Qxh4+ gxh4 41.Kg1 Kg7 42.Kf2 Kf6 43.Ra1 Nc4 44.Nxc4 >>Rxb3 45.Nxd6 Rxb4 46.Ra2 Rb6 47.Ne8+ Kf5 >>6. µ (-1.32): 39...Kg7 40.Qxh4 gxh4 41.Kf2 Kf6 42.Ra1 Nc4 43.Nxc4 Rxb3 44.Nxd6 >>Rxb4 45.Ra2 Rb6 46.Nc8 Rb1 >>7. µ (-1.24): 39...f6 40.Qxh4 gxh4 41.Kf2 Kf7 42.Bd1 Ra3 43.Nb7 Nxa4 44.Nxd6+ >>Ke6 45.Nb7 Ra2+ 46.Kg1 Nc3 47.Bg4+ Ke7 48.Nc5 >>8. µ (-1.15): 39...Qh5 40.Bd1 Qg6 41.Rg1 Bc2 42.Bxc2 Rxc2+ 43.Kh1 f6 44.Nb7 Nxa4 >>45.Nxd6 Qg7 46.Qg4 Kf8 >>9. µ (-0.90): 39...Bc4 40.Qxh4 gxh4 41.Bd1 Bd3 42.Kf2 Ra3 43.Nc6 Nxa4 44.Ne7+ >>Kf8 45.Nxd5 Ra2+ 46.Be2 Rb2 47.Kf1 Rc2 >> >>(, 22.11.2005) >> >>depth 15: >>Ponomariov,R - Fritz, Man vs Machine II 2005 >>6k1/5p2/pn1p4/N2p2p1/PP1Pp2q/1BrbP1QP/6K1/4R3 b - - 0 1 >> >>Analysis by Fruit 2.2.1: >> >>1. -+ (-2.19): 39...Qxg3+ 40.Kxg3 f5 41.Kf2 f4 42.Bd1 Bc2 43.Bxc2 Rxc2+ 44.Re2 >>Rxe2+ 45.Kxe2 f3+ 46.Kf1 Nxa4 47.Nc6 Nc3 48.Ke1 Kf7 49.Nb8 Ke6 50.Nxa6 >>2. -+ (-1.76): 39...Nc4 40.Qxh4 gxh4 41.Bxc4 dxc4 42.Nb7 d5 43.Nc5 Rc2+ 44.Kg1 >>c3 45.Nd7 Bc4 46.Kh1 Rf2 47.Rg1+ Kh7 48.Ne5 Bf1 >>3. µ (-1.35): 39...Qh6 40.Rg1 Bc2 41.Bxc2 Rxc2+ 42.Kh1 Kf8 43.Rf1 Nc4 44.Nxc4 >>dxc4 45.Qg4 Kg7 46.Qf5 Qh5 47.Qf6+ Kg8 48.Qd8+ Kh7 >>4. µ (-1.32): 39...Kh7 40.Qxh4+ gxh4 41.Kg1 Kg7 42.Kf2 Kf6 43.Ra1 Nc4 44.Nxc4 >>Rxb3 45.Nxd6 Rxb4 46.Ra2 Rb6 47.Nc8 Rb1 >>5. µ (-1.31): 39...f6 40.Qxh4 gxh4 41.Kg1 Bc2 42.Bxc2 Rxc2 43.Nb7 Nc4 44.Nd8 Ra2 >>45.Nc6 Kf7 46.a5 f5 47.Kf1 Rc2 >>6. µ (-1.29): 39...Kg7 40.Qxh4 gxh4 41.Kf2 Kf6 42.Ra1 Nc4 43.Bd1 Nxa5 44.bxa5 >>Ke6 45.Ra2 Rc1 46.Ke1 Bf1 47.Kxf1 Rxd1+ 48.Ke2 >>7. µ (-1.15): 39...Bc2 40.Qxh4 gxh4 41.Rc1 Rxb3 42.Nxb3 Bxb3 43.a5 Nc4 44.b5 >>Nxe3+ 45.Kf2 Nc4 46.bxa6 e3+ 47.Ke2 Ba4 48.a7 Bc6 49.Rb1 Kg7 >>8. µ (-1.12): 39...Qh5 40.Bd1 Qh6 41.Qf2 Nc4 42.Nxc4 Rxc4 43.Bb3 Rc3 44.Qb2 Rc8 >>45.Rc1 Bc4 46.Kh2 Qe6 47.Rg1 >>9. µ (-1.08): 39...Bc4 40.Qxh4 gxh4 41.Bd1 Bd3 42.Kf2 Kf8 43.Rg1 Bc2 44.Be2 Bxa4 >>45.Rg4 Bb5 46.Bxb5 axb5 47.Rxh4 Rc2+ 48.Kg3 >> >>(, 22.11.2005) >> >>depth 16: >> >>Ponomariov,R - Fritz, Man vs Machine II 2005 >>6k1/5p2/pn1p4/N2p2p1/PP1Pp2q/1BrbP1QP/6K1/4R3 b - - 0 1 >> >>Analysis by Fruit 2.2.1: >> >>1. -+ (-2.34): 39...Qxg3+ 40.Kxg3 f5 41.Kf2 f4 42.h4 Bc2 43.Rc1 fxe3+ 44.Ke1 >>Rxb3 45.Nxb3 Bxb3 46.a5 Nc4 47.hxg5 Kf7 48.Ke2 Kg6 49.Rc3 Ba4 >>2. -+ (-1.72): 39...Nc4 40.Qxh4 gxh4 41.Bxc4 dxc4 42.Nb7 d5 43.Nc5 Rc2+ 44.Kg1 >>c3 45.Nd7 Bc4 46.Nb6 Ba2 47.Nd7 Rd2 48.Ne5 Bb3 >>3. -+ (-1.62): 39...Qh6 40.Rg1 Bc2 41.Bxc2 Rxc2+ 42.Kh1 Kf8 43.Rf1 Re2 44.b5 >>axb5 45.axb5 Nc4 46.Nxc4 dxc4 47.b6 Rb2 48.Rc1 Qe6 >>4. -+ (-1.52): 39...f6 40.Qxh4 gxh4 41.Kg1 Kf7 42.Bd1 Ra3 43.Kg2 Nxa4 44.Bb3 Nb6 >>45.Kf2 Bc4 46.Bc2 Rc3 47.Rc1 Bb5 >>5. µ (-1.38): 39...Kg7 40.Qxh4 gxh4 41.Kf2 Kf6 42.Ra1 Nc4 43.Nxc4 Rxb3 44.Nxd6 >>Rxb4 45.Ra2 Ke6 46.Ne8 Rb8 47.Ng7+ Kf6 48.Nh5+ Kf5 >>6. µ (-1.34): 39...Qh5 40.Bd1 Qh6 41.Qf2 Rc1 42.Kh2 Nc4 43.Nc6 g4 44.h4 Nxe3 >>45.Ne7+ Kf8 46.Rxe3 Rxd1 47.Nxd5 Rc1 >>7. µ (-1.29): 39...Kh7 40.Qxh4+ gxh4 41.Kg1 Kg7 42.Kf2 Kf6 43.Ra1 Nc4 44.Bd1 >>Nxa5 45.bxa5 Ke6 46.Ra2 Rc1 47.Ke1 Bf1 48.Kxf1 Rxd1+ 49.Ke2 >>8. µ (-1.17): 39...Bc4 40.Qxh4 gxh4 41.Bd1 Bd3 42.Kf2 Kf8 43.Rg1 Bc2 44.Be2 Bxa4 >>45.Bxa6 Nc4 46.Re1 Ke7 47.Re2 Bd7 >>9. µ (-0.88): 39...Bc2 40.Qxh4 gxh4 41.Rc1 Rxb3 42.Nxb3 Bxb3 43.a5 Nc4 44.b5 >>Nxe3+ 45.Kf2 Nc4 46.bxa6 e3+ 47.Ke2 Ba4 48.a7 Bc6 49.Rb1 Kg7 50.Rb8 >> >>(, 22.11.2005) >> >> >>depth 17 >> >>Ponomariov,R - Fritz, Man vs Machine II 2005 >>6k1/5p2/pn1p4/N2p2p1/PP1Pp2q/1BrbP1QP/6K1/4R3 b - - 0 1 >> >>Analysis by Fruit 2.2.1: >> >>1. -+ (-2.47): 39...Qxg3+ 40.Kxg3 f5 41.Kf2 f4 42.Rg1 fxe3+ 43.Kxe3 Bc4+ 44.Kd2 >>Rd3+ 45.Kc2 Bxb3+ 46.Nxb3 Nxa4 47.Na5 Rc3+ 48.Kd2 Rxh3 49.Rxg5+ Kf7 50.Nc6 Rd3+ >>51.Ke1 Rc3 52.Nb8 Kf6 53.Rxd5 >>2. -+ (-1.97): 39...Nc4 40.Qxh4 gxh4 41.Bxc4 dxc4 42.Nb7 Rc2+ 43.Kg1 d5 44.Nc5 >>c3 45.Nd7 Bc4 46.b5 axb5 47.axb5 Bxb5 48.Nf6+ Kg7 49.Nxd5 Bc4 50.Nf4 >>3. -+ (-1.72): 39...Qh6 40.Rg1 Bc2 41.Bxc2 Rxc2+ 42.Kh1 Kf8 43.Rg2 Rxg2 44.Kxg2 >>Nxa4 45.Nc6 f5 46.Kh2 Nb6 47.Qf2 f4 48.Qf1 Nc4 >>4. -+ (-1.62): 39...Kh7 40.Qxh4+ gxh4 41.Kg1 Kg7 42.Kf2 Nc4 43.Bd1 Ra3 44.Nc6 >>Ra2+ 45.Be2 Rxa4 46.Bxd3 exd3 47.Rd1 Ra2+ 48.Kf3 Rh2 49.Rxd3 Rxh3+ 50.Kg4 Rxe3 >>51.Rxe3 Nxe3+ 52.Kxh4 >>5. -+ (-1.58): 39...Kg7 40.Qxh4 gxh4 41.Kf2 Nc4 42.Bd1 Ra3 43.Nc6 Ra2+ 44.Be2 >>Bxe2 45.Rxe2 Rxa4 46.Ne7 Rxb4 47.Nxd5 Rb8 48.Rc2 Rc8 49.Rc1 >>6. µ (-1.23): 39...f6 40.Qxh4 gxh4 41.Kf2 Kf7 42.Ra1 Nc4 43.Nxc4 Rxb3 44.Nxd6+ >>Ke6 45.Nb7 Rb2+ 46.Kg1 Re2 47.Nc5+ Ke7 48.b5 Rxe3 49.Nxa6 Rxh3 >>7. µ (-1.22): 39...Qh5 40.Qf2 Qh6 41.Kh2 Nc4 42.Rg1 Nxa5 43.Qf4 Rxb3 44.Rxg5+ >>Kf8 45.Rg8+ Kxg8 46.Qxh6 Nb7 47.Qg5+ Kf8 48.Qxd5 Rxb4 49.Kg3 >>8. µ (-1.19): 39...Bc4 40.Qxh4 gxh4 41.Bd1 Bd3 42.Kf2 Kf8 43.Rg1 Bc2 44.Be2 Bxa4 >>45.Bxa6 Nc4 46.Nxc4 dxc4 47.Rg4 Rc2+ 48.Ke1 Bc6 49.Rxh4 >>9. ³ (-0.53): 39...Bc2 40.Qxh4 gxh4 41.Rc1 Rxb3 42.Nxb3 Bxb3 43.b5 a5 44.Rc6 >>Nxa4 45.Rxd6 Bc4 46.b6 Ba6 47.Rxd5 Nxb6 48.Rxa5 Be2 49.Ra7 >> >>(, 22.11.2005) >>9. µ (-1.14): 39...Kh8 40.Qxd6 Kg7 41.Rg1 Be2 42.Qg3 Qxg3+ 43.Kxg3 Bc4 44.Bxc4 >>dxc4 45.h4 Rxe3+ 46.Kf2 Rf3+ 47.Ke2 c3 48.Rxg5+ Kf6 49.Rh5 Nxa4 50.Rh6+ Kf5 >>51.Rxa6 >> >>(, 22.11.2005) > >Seems easy for Fritz 9 as well. I dont think I want the new version I think that the problem is that you use fritz in 1 option mode so you do not see the difference between best move and the move played in the game. I read that fritz in 3 mode option has very little difference between the evaluations of Qxg3+ and Bc2. Uri
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