Author: John Merlino
Date: 15:19:00 03/01/04
Go up one level in this thread
On March 01, 2004 at 18:01:21, Albert Silver wrote: >I had the pleasure of playing the following rook sac in a blitz game a short >while ago. Since it turned out to be correct, I submit it to the engine fiends. >It resists some engines a bit on my old hardware, so it might make an >interesting addition to some test suite. > >[D]r2r2k1/ppq1bp2/2p1pnpB/8/1PP5/P1N3RP/2P1QPP1/4R1K1 w - - > >The key move is (rather obvious for a human though it needs to be worked out) >1.Rxg6! followed by fxg6 2.Qxe6+ Kh7 3.Qf7+ Kxh6 4.Rxe7 Qd6 5.Qg7+ followed by >the knight joining in. > >In the game my opponent dropped the knight with 4...Qc8 and resigned. > > Albert Chessmaster 9000, SKR personality on a P4-2.4, needs just under one minute to find Rxg6: Time Depth Score Positions Moves 0:00 1/5 1.86 24048 1.Rxg6+ Kh7 2.Rg7+ Kxh6 3.Rxf7 Qd6 4.Qe3+ Kg6 0:00 1/6 1.18 82801 1.Rxg6+ fxg6 2.Qxe6+ Kh7 3.Bg5 Bxb4 4.Qxf6 Re8 0:00 1/6 1.54 98808 1.Bg5 a5 2.Rf3 axb4 3.axb4 Ng4 4.Bf4 0:00 1/6 1.83 132843 1.Rf3 a5 2.Bf4 Qb6 3.c5 Qa6 0:01 1/7 1.77 201593 1.Rf3 a5 2.Bf4 Qb6 3.Be5 axb4 4.axb4 Kg7 0:01 1/8 1.68 312057 1.Rf3 a5 2.Bf4 Qb6 3.c5 Qa6 4.Qxa6 Rxa6 5.Bg5 0:04 1/9 1.66 818176 1.Rf3 a5 2.Bf4 Qb6 3.Be3 Qc7 4.Bg5 axb4 5.axb4 Nh7 0:15 1/10 1.75 2885680 1.Rf3 Rd4 2.c5 b5 3.Qe3 Qd8 4.Bg5 a5 5.Qe5 axb4 6.axb4 0:51 1/11 1.72 10289460 1.Rf3 Rd7 2.Bg5 Qd8 3.Qe3 a5 4.c5 axb4 5.axb4 Nd5 6.Bxe7 Qxe7 7.Qd4 0:58 1/11 2.04 12102506 1.Rxg6+ fxg6 2.Qxe6+ Kh7 3.Qf7+ Kxh6 4.Rxe7 Qd6 5.Qg7+ Kg5 6.Ne2 Rh8 7.Re5+ Qxe5 8.f4+ Qxf4 9.Nxf4 Rag8 10.Qf7 1:37 1/12 2.73 21067294 1.Rxg6+ fxg6 2.Qxe6+ Kh7 3.Qf7+ Kxh6 4.Rxe7 Qd6 5.Qg7+ Kg5 6.Ne2 Rh8 7.c5 Qd1+ 8.Kh2 Qa1 9.f4+ Kf5 10.Re5+ Qxe5 11.fxe5 Kxe5 12.Qxb7 2:51 1/13 3.08 38284001 1.Rxg6+ fxg6 2.Qxe6+ Kh7 3.Qf7+ Kxh6 4.Rxe7 Qd6 5.Qg7+ Kg5 6.Ne2 Rg8 7.f4+ Qxf4 8.Nxf4 Rxg7 9.Ne6+ Kh6 10.Nxg7 Rg8 11.Ne6 jm
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