Author: Uri Blass
Date: 15:24:30 11/21/05
Go up one level in this thread
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)
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