Author: Stuart Cracraft
Date: 16:14:54 12/18/05
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On December 18, 2005 at 14:23:33, Peter Kasinski wrote: >I came across this position in GM Speelman's lovely "Endgame Preparation": > >[D]1R6/8/8/5bp1/4p2k/8/B1p2PKP/8 w - - 0 1 > >It's a study from 1934, by V. Chekhover: > >1 Rb1! cbQ 2 Bxb1 e3! 3 Bxf5! e2 4 Bg4!! e1Q 5 h3 and (to quote): "Despite >Black's huge material advantage he has no way, with his king isolated, to >produce even a chip in the white fotress." > >I tried Deep Shredder 9, Deep Junior 9, Fruit 2.2.1, and 2 hours on dual core >AMD 2.4 GHz was not enough. Actually, even entering the above sequence of moves >does not make them display a draw score, even though holding this position (by >walking White king around the pawn on f2) is trivial. > >Wonder if there is an engine that could solve this sort of thing... > >Thanks, >PK For the whole principal variation as described above? Not here. Alpha=3544 Beta=4345 Maxdepth=9999999 MaxTime=666666 Itr/Max Mv Time Score Nodes PV 1/ 4 b8h8 0.00 3929 65 Tb8h8 Th4g4 2/ 8< b8h8 0.00 3528 630 Tb8h8 Th4g4 Th8h7 2/ 8 b8h8 0.01 3929 634 Tb8h8 Th4g4 Th8h7 3/11< b8h8 0.01 3528 2605 Tb8h8 Th4g4 Th8h7 Tf5h7 3/11 b8b1 0.03 1934 5999 Pb8b1 Pf5e6 Pb1a1 Pc2c1R Pa1c1 Pe6a2 4/13 b8b1 0.07 1924 16284 Pb8b1 Pf5h3 Pg2g1 Ph3e6 Pb1a1 Pc2c1R Pa1c1 Pe6a2 5/15 b8b1 0.13 1916 31347 Pb8b1 Pf5h3 Pg2g1 Ph3e6 Pb1e1 Pe6a2 Pe1e4 Pg5g4 6/18 b8b1 0.24 1916 60185 Tb8b1 Tf5h3 Tg2g1 Th3e6 Tb1e1 Te6a2 Te1e4 Tg5g4 7/23 b8b1 0.51 1925 132984 Tb8b1 Tf5h3 Tg2h1 Th3e6 Tb1e1 Tc2c1R Te1c1 Te6a2 Tc1c7 8/24 b8b1 1.01 1941 283659 Pb8b1 Pf5e6 Pb1c1 Pe6a2 Pc1c2 Pa2d5 Pc2c7 Ph4g4 9/25 b8b1 1.91 1931 542900 Pb8b1 Pf5h3 Pg2g1 Ph3e6 Pb1c1 Pe6a2 Pc1c2 Pa2d5 Pc2c7 Ph4g4 10/25 b8b1 3.91 1938 1130494 Pb8b1 Pf5e6 Pb1c1 Pe6a2 Pc1c2 Pa2e6 Pc2c7 Pe6h3 Pg2g1 Ph4g4 Pc7d7 11/32 b8b1 24.54 1938 6890157 Pb8b1 Pf5e6 Pb1c1 Pe6a2 Pc1c2 Pa2e6 Pc2c7 Pe6h3 Pg2g1 Ph3f5 Pg1g2 Pf 5h3 12/32 b8b1 43.26 1939 11830316 Pb8b1 Pf5e6 Pb1c1 Pe6a2 Pc1c2 Pa2e6 Pc2c3 Pe6a2 Pf2f3 Pa2d5 Pf3e4 Pd 5e4 Pg2f2 13/41 b8b1 1400.21 1938 43269263 Pb8b1 Pf5e6 Pb1c1 Pe6a2 Pc1c2 Pa2e6 Pc2c7 Pe6h3 Pg2g1 Ph3f5 14/ --Stuart
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