Author: John Merlino
Date: 13:29:32 04/15/03
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On April 15, 2003 at 16:10:29, Mike S. wrote: >Test position by Hermann Seitz, 1986 >[D]Bk6/1P2p1pp/RP1p3p/P7/2P5/4p3/4p1p1/4Kbrb w - - 0 1 >1.Ra7 etc.; the idea ist to play Ra6-a7-a6 etc. until black is forced to play >d6-d5 and white mates after cxd5. > >Here, most engines reach big depths quickly, but only a few (i.e. King 3.23 or >Shredder 7) find also the mate quickly. Many engines go for a draw only, at >least in the pv of the initial position (typical is 1.Ra7/2.a6??/3.c5?? forcing >a stalemate). > >Regards, >M.Scheidl Pretty amusing. The King in CM9000 reaches its maximum depth in less than one second, announcing mate a handful of PVs before then. Note that The King's maximum reported PV is only 31 plies, so the full mating sequence is not reported.... Time Depth Score Positions Moves 0:00 25/32 0.00 12170 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 26/33 0.00 12696 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 27/34 0.00 13336 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 28/35 0.00 13905 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 29/36 0.00 63998 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 30/37 0.00 86433 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 31/38 0.00 87046 1.c5 dxc5 2.Ra7 c4 3.a6 c3 0:00 31/38 Mate19 87634 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.Ra6 0:00 32/39 Mate19 88071 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 0:00 33/40 Mate19 88597 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 0:00 34/41 Mate19 89138 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 0:00 35/42 Mate19 89676 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 0:00 36/43 Mate19 90219 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 0:00 37/44 Mate19 90762 1.Ra7 h5 2.Ra6 h4 3.Ra7 h3 4.Ra6 h2 5.Ra7 g6 6.Ra6 g5 7.Ra7 h6 8.Ra6 e6 9.Ra7 e5 10.Ra6 e4 11.Ra7 g4 12.Ra6 g3 13.Ra7 h5 14.Ra6 h4 15.Ra7 h3 16.a6 jm
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