Author: Jorge Pichard
Date: 19:21:40 04/30/04
Go up one level in this thread
On April 30, 2004 at 20:34:33, Vincent Lejeune wrote: >On April 30, 2004 at 17:21:34, José Antônio Fabiano Mendes wrote: > >> [D]7k/6p1/2P3Qp/p3q2P/8/6P1/5K2/8 w >> Bogoljubow vs Stahlberg, Kemeri 1933 1. Qc2!! Qxh5 2. Qc4! > >All test on an AMD 2800+@12*180Mhz > >and ? what's the point of 2. Qc4 ? >Shredder 8 doesn't see more than a draw , after 2...Qf5+ > >[d]7k/6p1/2P4p/p4q2/2Q5/6P1/5K2/8 w - - 0 1 > >Analysis by Shredder 8: > >1. = (0.06): 3.Re3 Dg5+ 4.Rf3 Df5+ 5.Rg2 Dc8 6.Dd3 Dxc6+ 7.De4 Dxe4+ 8.Rf2 >2. = (0.06): 3.Re2 De5+ 4.Rf3 Dc7 5.Dc3 a4 6.Re3 >3. = (0.05): 3.Re1 Dc8 4.c7 a4 5.Rd2 Rh7 > >> >> [D]8/8/p7/2Q5/1P6/1P3qp1/3k4/6K1 b >> Grigoriev 1930 1...Kd1! >> The immediate transposition into a pawn ending leads only to a draw. > >winning : 1 sec ; -6 after 17 sec > >Analysis by Shredder 8: >... >1...Dxb3 2.Dd5+ Dxd5 3.b5 axb5 > -+ (-1.53) Profondeur: 4/16 00:00:00 >1...Dxb3 2.Rg2 Da3 3.Dd6+ Rc2 > -+ (-1.72) Profondeur: 4/16 00:00:00 >1...De2 2.Dd6+ Dd3 3.Dh6+ Rc3 4.Dc1+ Rxb3 > -+ (-1.74) Profondeur: 4/16 00:00:00 >1...De2 2.Dd6+ Dd3 3.Db8 Dxb3 > -+ (-2.09) Profondeur: 4/16 00:00:00 >1...De2 2.Dd4+ Rc2 3.Dc4+ Rd1 4.Dc3 > -+ (-2.14) Profondeur: 4/16 00:00:00 >1...De2 2.Dd4+ Rc2 3.Dc4+ Rd1 4.Dxe2+ Rc1 5.Dxa6 > -+ (-1.89) Profondeur: 5/13 00:00:00 >1...De2 2.Dd4+ Dd3 3.Db2+ Re1 4.De5+ Rd1 5.Da1+ Re2 6.Df1+ Re3 7.De1+ Rf3 > -+ (-1.66) Profondeur: 5/17 00:00:00 >1...Dxb3 2.Dc4 Dxc4 3.Rh1 Dxb4 > -+ (-1.67) Profondeur: 5/19 00:00:01 >1...Dxb3 2.Rg2 Da3 3.Dd6+ Rc2 4.Dg6+ Rc1 5.Dxg3 Dxb4 > -+ (-1.76) Profondeur: 5/19 00:00:01 >1...Rd1 2.Dd4+ Rc2 3.Df2+ gxf2+ 4.Rh2 f1D > -+ (-1.77) Profondeur: 5/19 00:00:01 >1...Rd1 2.Dd4+ Rc2 3.Dc4+ Rb2 4.Dxa6 Df2+ 5.Rh1 > -+ (-1.90) Profondeur: 5/19 00:00:01 >1...De4 2.Dg5+ De3+ 3.Dxe3+ Rxe3 4.Rg2 Rf4 5.Rf1 Rf3 6.Rg1 Rg4 > -+ (-1.96) Profondeur: 5/19 00:00:01 >1...De4 2.Dd6+ Dd3 3.Dc6 Dd4+ 4.Rh1 Dh4+ 5.Rg1 > -+ (-2.27) Profondeur: 5/19 00:00:01 >1...De4 2.Dd6+ Dd3 3.Df6 De3+ 4.Rg2 De2+ 5.Rxg3 Dh2+ 6.Rxh2 > -+ (-2.02) Profondeur: 6/12 00:00:01 >1...De4 2.Dd6+ Dd3 3.Df6 Rc2 4.Dc6+ Rxb3 5.Dc5 > -+ (-1.84) Profondeur: 6/12 00:00:01 >1...Rd1 2.Dd6+ Rc2 3.Dxa6 Df2+ 4.Rh1 > -+ (-1.90) Profondeur: 6/20 00:00:01 >1...Rd1 2.Dd6+ Rc2 3.Dg6+ Rb2 4.Dg8 > -+ (-2.25) Profondeur: 6/20 00:00:01 >1...Rd1 2.Dd6+ Rc2 3.Dg6+ Rc3 4.Db6 Rb2 5.Dd4+ Rxb3 6.b5 > -+ (-2.28) Profondeur: 6/20 00:00:01 >1...Rd1 2.Dd6+ Rc2 3.Dg6+ Rb2 4.Db6 De2 5.Dc5 g2 > -+ (-2.26) Profondeur: 7/21 00:00:01 46kN, tb=285 >1...Rd1 2.Dd6+ Rc2 3.Db6 Rb2 4.Da7 Rxb3 5.Dxa6 Df2+ 6.Rh1 Rxb4 > -+ (-2.46) Profondeur: 8/23 00:00:02 69kN, tb=329 >1...Rd1 2.Dd6+ Rc2 3.Db6 Rxb3 4.De6+ Rb2 5.Db6 Rc2 6.Dg6+ Rc3 7.Db1 > -+ (-2.59) Profondeur: 9/25 00:00:02 124kN, tb=413 >1...Rd1 2.Dd6+ Rc2 3.Db6 Rxb3 4.De6+ Rc3 5.Dh3 > -+ (-2.84) Profondeur: 10/25 00:00:02 172kN, tb=503 >1...Rd1 2.Dd4+ Rc2 3.Db6 Rxb3 4.De6+ Rc3 5.De5+ Rc2 6.De1 Dd1 7.Dxd1+ Rxd1 8.Rf1 > -+ (-2.97) Profondeur: 10/26 00:00:03 243kN, tb=514 >1...Rd1 2.Dd4+ Rc2 3.Db6 Rb2 4.b5 axb5 5.b4 Rb3 6.De6+ Rxb4 7.Db6 Ra4 > -+ (-3.22) Profondeur: 11/28 00:00:03 357kN, tb=630 >1...Rd1 2.Dd6+ Rc1 3.Dc5+ Rb2 4.Df2+ gxf2+ 5.Rh2 > -+ (-3.72) Profondeur: 11/28 00:00:03 369kN, tb=631 >1...Rd1 2.Dd6+ Rc1 3.Dc5+ Rb2 4.Dd4+ Rxb3 5.b5 Df2+ 6.Dxf2 gxf2+ 7.Rh2 > -+ (-3.99) Profondeur: 11/32 00:00:04 697kN, tb=634 >1...Rd1 2.Dd6+ Rc2 3.b5 Df2+ 4.Rh1 axb5 5.Dg6+ Rb2 6.Dg7+ Ra2 7.Dh8 b4 8.Da8+ >Rxb3 9.Da4+ Rc3 10.Da1+ Rb3 11.Db1+ Rc4 12.De4+ Rb5 13.Db7+ Rc5 > -+ (-4.24) Profondeur: 12/33 00:00:05 1051kN, tb=810 >1...Rd1 2.Dd6+ Rc2 3.b5 Df2+ 4.Rh1 axb5 5.Dc6+ Rb2 6.Dd5 g2+ 7.Rh2 > -+ (-4.74) Profondeur: 12/33 00:00:05 1075kN, tb=830 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rc3 4.Dh3 Df2+ 5.Rh1 Dh2+ 6.Dxh2 Rxb3 7.Dxg3+ Ra2 > -+ (-4.74) Profondeur: 12/35 00:00:08 2493kN, tb=1166 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rc3 4.Dh3 Df2+ 5.Rh1 Dh2+ 6.Dxh2 Rxb3 7.Dxg3+ Rxb4 > -+ (-4.49) Profondeur: 13/36 00:00:10 3317kN, tb=1479 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rc3 4.Dh3 Df2+ 5.Rh1 Rxb3 6.De6+ Ra3 7.Dh3 Df3+ 8.Rg1 >Rxb4 9.Dh4+ Df4 10.Dxf4+ Rc5 > -+ (-4.16) Profondeur: 13/38 00:00:13 4361kN, tb=1634 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rc3 4.Dh3 Df2+ 5.Rh1 De1+ 6.Rg2 Rxb3 7.Rf3 Df2+ 8.Rg4 > -+ (-4.41) Profondeur: 14/31 00:00:16 5192kN, tb=2387 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rc3 4.Dh3 Df2+ 5.Rh1 De1+ 6.Rg2 Rxb3 7.Dc8 Df2+ 8.Rh3 >Dh2+ 9.Rg4 g2 10.Rf3 g1D 11.Dc4+ Rxc4 > -+ (-4.91) Profondeur: 14/32 00:00:16 5234kN, tb=2458 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rb2 4.Dh3 Ra2 5.b5 axb5 6.b4 Df2+ 7.Rh1 g2+ 8.Dxg2 >Dxg2+ 9.Rxg2 Ra3 10.Rg3 Rxb4 11.Rf4 Rc5 12.Re4 > -+ (-6.02) Profondeur: 14/34 00:00:17 5817kN, tb=2762 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rb2 4.Dg7+ Rxb3 5.Dg8+ Ra3 6.b5 > -+ (-6.27) Profondeur: 15/34 00:00:22 6654kN, tb=4212 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rb2 4.Dh8+ Rxb3 5.Dh3 Ra3 6.b5 Df2+ 7.Rh1 Dh2+ 8.Dxh2 >g2+ 9.Rxg2 Rb4 > -+ (-6.27) Profondeur: 15/37 00:00:34 11137kN, tb=4983 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rb2 4.Dh8+ Rxb3 5.Dd4 > -+ (-6.52) Profondeur: 16/34 00:00:41 12586kN, tb=7987 >1...Rd1 2.Da7 Rc2 3.Dh7+ Rb2 4.Dh8+ Rxb3 5.Dd4 > -+ (-7.02) Profondeur: 16/34 00:00:41 12605kN, tb=8094 ------------------------------------------------------------------------------- All test on an AMD 1200 without Tablebases Analysis by Fritz 8: 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qd4+ 4.Kh2 Qg4 5.Kg2 ± (0.72) Depth: 7/20 00:00:00 63kN 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qd4+ 4.Kf1 Qg4 5.Kf2 a3 ² (0.69) Depth: 8/22 00:00:00 143kN 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qd4+ 4.Kh2 Qg4 5.c7 ± (0.72) Depth: 9/28 00:00:00 357kN 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qd4+ 4.Kh2 ² (0.53) Depth: 10/26 00:00:01 822kN 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qd4+ 4.Kh2 Qg4 5.c7 Qc8 6.Qxa4 Qxc7 7.Qe8+ Kh7 8.Qe4+ Kh8 9.Kg2 ² (0.53) Depth: 11/33 00:00:03 2002kN 1.Kg2 a4 2.Qc2 Qd5+ 3.Kf2 Qd4+ 4.Kf1 Qg4 5.c7 Qh3+ 6.Ke1 ² (0.53) Depth: 12/33 00:00:07 4676kN 1.Kg2 Qd5+ 2.Kh2 Qd2+ 3.Kg1 Qd4+ ² (0.44) Depth: 13/39 00:00:21 13757kN 1.Kg2 Qe2+ 2.Kh3 Qf3 3.Qe8+ Kh7 4.Kh4 Qd5 5.Qg6+ Kh8 = (0.25) Depth: 14/40 00:00:45 29628kN 1.Qc2! ² (0.28) Depth: 14/41 00:01:33 60417kN 1.Qc2! ² (0.44) Depth: 14/46 00:01:44 67911kN 1.Qc2 Qxh5 2.Qc4 Qf5+ 3.Ke3 Qe5+ 4.Kd2 Qd6+ 5.Kc2 Qc7 6.g4 Qd8 7.c7 Qc8 8.Kc3 ² (0.53) Depth: 14/46 00:02:07 84114kN 1.Qc2! ± (0.81) Depth: 15/44 00:03:31 138410kN (Pichard, MyTown 01.05.2004) New game, 7k/6p1/2P3Qp/p3q2P/8/6P1/5K2/8 w - - 0 1 Analysis by Fritz 8: 1. ± (0.88): 1.Qc2 Qxh5 2.Qc4 2. = (0.16): 1.Kf1 a4 2.Qc2 Qxh5 3.Qxa4 Qf3+ 4.Ke1 Qxg3+ 5.Ke2 Qg2+ 6.Kd3 Qg3+ 7.Kc4 Qf4+ 8.Kb5 Qb8+ 9.Kc5 Qf8+ 3. = (0.00): 1.Kf3 a4 2.c7 Qxc7 3.Qe8+ Kh7 4.Qe4+ Kg8 5.Qxa4 Qf7+ 6.Kg4 Qe6+ 7.Kh4 Qf6+ 8.Kh3 Qf1+ 9.Kh4 Qf6+ 4. = (0.00): 1.Kg2 Qe2+ 2.Kh3 Qf3 3.Qe8+ Kh7 4.Qe6 Qxh5+ 5.Kg2 Qc5 6.Kf3 Qc3+ 7.Kg4 Qd4+ 8.Kh3 Qd3 5. = (0.00): 1.g4 a4 2.Qf5 Qh2+ 3.Ke3 a3 4.Qc8+ Kh7 5.c7 Qe5+ 6.Kd3 a2 7.Qf5+ Qxf5+ 8.gxf5 a1Q 6. = (0.00): 1.Kg1 a4 2.Kh2 Qe2+ 3.Kh3 Qf1+ 4.Kh4 Qc4+ 5.g4 Qe2 6.Kg3 Qe3+ 7.Kg2 Qe2+ 8.Kh3 a3 7. = (0.00): 1.c7 Qxc7 2.Qe8+ Kh7 3.Qg6+ Kh8 (Pichard, MyTown 01.05.2004)
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