Author: Heiner Marxen
Date: 04:51:59 04/17/01
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On April 10, 2001 at 08:37:48, Paul wrote: >On April 10, 2001 at 07:25:57, leonid wrote: > >>Hello! >> >>If you would like to crush some mate, where solution is not that far but >>resistance is visible, then you can solve this position: >> >>2Qr1bqN/R3P1Rq/1p1q1q2/1Q4qk/q2QQr1n/1Q4r1/3BNqbQ/1B1K4 w - - >> >>Please indicate your result. >> >>If your program is shareware, it will be handy if you will indicate address of >>your program on the Web. >> >>Thanks, >>Leonid. > >Hi guys! > >Phhfffeewww! PretzOld found a mate in 8 ... but for 8 moves it took a long time: > >01:14 WM8 07 e8=Q+ Rxe8 Nxg3+ Qxg3 Qcxe8+ Qff7 Qxf7+ Qxf7 Qxh7+ Qh6 Qxh6+ Kxh6 >Rh7+ Qxh7 Rxh7# > >Another, slightly different line: e8=Q+ Rxe8 Nxf4+ Q2xf4 Qcxe8+ Qff7 Qxh7+ Qxh7 >Rxh7+ Bh6 Qxf7+ Qg6 Bxg6+ Kg4 Qxg3# > >Here's a nice (normal ;)) mate in 10 in return for you from the German CSS forum >... > >[D]2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - > >Ciao, >Paul Hi Paul, To find that "there is no mate in 7" Chest already needs already over 1300 secs, with an effective branching factor over 10. Therefore I stop this one here. The mate in 10 could need 1000 fold that time (for Chest). Heiner
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