Author: Vincent Lejeune
Date: 12:11:09 05/18/04
Go up one level in this thread
On May 18, 2004 at 14:43:33, Kurt Utzinger wrote: >On May 18, 2004 at 13:48:00, Eduard Nemeth wrote: > > >>>>In a Bullet-Game (Yesterday) I have not seen a winning Line in a Pawn endgame. > >[D]8/3k3p/1p4p1/p2p1p2/PP3P1P/2PK2P1/8/8 w - - 0 40 > > > Hi Eduard > Are you sure that this ending is lost for White? > Below the analysis of The King 3.23 T02 > Kurt > > >The King 3.23 T02 UCI1 : (P4 1.8/32 MB hash) > 3 00:00 0.27 Ke6 b5 Kd6 > 4 00:00 0.12 Ke6 Ke3 Kd6 Kd3 > 5 00:00 0.31 Ke6 Ke3 Kf6 Kd3 axb4 cxb4 > 5 00:00 0.27 Kd6 Ke3 Kc6 Kd3 axb4 cxb4 > 6 00:00 0.09 Kd6 Ke3 Kd7 bxa5 bxa5 Kd4 Kd6 > 7 00:00 0.26 Kd6 Ke3 Kc6 Kd3 b5 axb5+ Kxb5 bxa5 Kxa5 > 8 00:00 0.23 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 > 9 00:00 0.00 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 Kc4 >10 00:00 0.00 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 Kc4 >11 00:00 0.00 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 Kc4 >12 00:00 0.00 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 Kc4 >13 00:00 0.00 Kd6 b5 Ke6 c4 dxc4 Kxc4 Kd6 Kd4 Ke6 Kc4 >13 00:01 -0.25 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc7 b5 a3 Kb3 Kb6 Kxa3 Kxb5 Kb3 >Kc5 >14 00:01 -0.29 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 >15 00:04 -0.22 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 >16 00:10 -0.22 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 >17 00:22 -0.16 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 h6 >18 01:02 -0.19 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 h6 Ke3 >19 02:15 -0.03 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 h6 Ke3 Kc4 >20 07:33 -0.22 b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 >Kc5 Kc3 Kd5 Kd3 h6 Ke3 Kc4 Kf3 Kd4 Yes, I think it's a very long forced line ; only a prog with a very deep singular-extension can see that after b5 Kxd5 axb4 cxb4 bxa4 Kc4 Kc6 b5+ Kb6 Kb4 a3 Kxa3 Kxb5 Kb3 Kc5 Kc3 Kd5 Kd3 h6 [d]8/8/6pp/3k1p2/5P1P/3K2P1/8/8 w - - 0 11 Shredder 8 see it's winning : Analysis by Shredder 8: 11.Re3 Rc4 12.Re2 Rc3 13.g4 h5 14.Re3 hxg4 15.Re2 g3 16.Re3 g2 17.Rf2 Rd4 18.h5 gxh5 19.Rg1 Re3 20.Rh2 Rxf4 21.Rh3 g1D ³ (-0.44) Profondeur: 21/33 00:00:16 1689kN, tb=13812 11.Re3 Rc4 12.Re2 Rc3 13.g4 h5 14.Re3 hxg4 15.Re2 g3 16.Re1 Rd4 17.Rd1 Re4 18.Rc1 Rxf4 19.h5 ³ (-0.69) Profondeur: 22/30 00:00:20 1773kN, tb=15211 11.Re3 Rc4 12.Re2 Rc3 13.g4 h5 14.Re3 hxg4 15.Re2 g3 16.Re1 Rd4 17.Rd1 Re4 18.Rc1 Rxf4 19.h5 gxh5 20.Rb2 h4 21.Rc1 Re4 µ (-1.19) Profondeur: 22/32 00:00:21 1836kN, tb=15526 11.Re3 Rc4 12.Re2 Rc3 13.Rf2 Rd3 14.h5 gxh5 15.Rf3 Rd4 16.g4 fxg4+ 17.Rf2 h4 18.Re2 -+ (-2.10) Profondeur: 22/37 00:00:33 3737kN, tb=23849 11.Re3 Rc4 12.Re2 Rc3 13.Rf2 Rd3 14.h5 gxh5 15.Rf3 Rd4 16.g4 fxg4+ 17.Rf2 h4 18.Re2 -+ (-2.10) Profondeur: 23/39 00:00:51 4485kN, tb=27767 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.g4 fxg4 17.Re1 Rxf4 18.Rd1 Re4 19.Re1 Rd4 20.Re2 Rd5 21.Rd2 g3 22.Rc2 Re5 23.Rb2 g2 24.Rc3 -+ (-2.34) Profondeur: 24/41 00:01:44 5868kN, tb=35287 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.g4 fxg4 17.Re1 Rxf4 18.Rd1 Re4 19.Re1 Rd4 20.Re2 Rd5 21.Rf2 Rc4 -+ (-2.59) Profondeur: 25/40 00:02:20 8808kN, tb=45943 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.g4 fxg4 17.f5 gxf5 18.Rg1 -+ (-3.09) Profondeur: 25/43 00:02:29 10331kN, tb=52702 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.Rg2 Re2 17.Rh3 Rf3 18.Rh2 Rf2 19.g4 fxg4 20.Rh1 Re3 21.f5 gxf5 22.Rh2 Re2 23.Rh1 Rf2 24.Rh2 g3+ 25.Rh1 -+ (-3.09) Profondeur: 25/43 00:02:33 10680kN, tb=56448 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.Rg2 Re2 17.Rg1 Rf3 18.Rf1 Rxg3 19.Re1 Rxf4 20.Re2 Rg4 21.Rf2 Rxh4 22.Re3 Rh3 23.Rd4 -+ (-3.34) Profondeur: 26/46 00:03:36 19007kN, tb=89888 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.Rg2 Re2 17.Rg1 Rf3 18.Rf1 Rxg3 19.Re1 Rxf4 20.Re2 Rg4 21.Rd3 Rxh4 22.Rd4 -+ (-3.84) Profondeur: 26/46 00:03:45 22226kN, tb=104169 11.Re3 Rc4 12.Re2 Rc3 13.Re3 h5 14.Rf2 Rd2 15.Rf1 Re3 16.Rg2 Re2 17.Rg1 Rf3 18.Rf1 Rxg3 19.Re1 Rxf4 20.Re2 Rg4 21.Rd3 g5 22.Re3 gxh4 23.Re2 -+ (-3.84) Profondeur: 26/46 00:03:49 22898kN, tb=108240
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