Author: Ron Murawski
Date: 16:30:57 10/30/02
Go up one level in this thread
On October 30, 2002 at 16:13:36, Gerd Isenberg wrote: >Position from Shark - IsiChessMMX, Leiden Round 10 > >[D] r4rk1/2n1b1pN/pqb1p1Qp/1p6/P1p3n1/N1P1B3/1PB2PPP/R2R2K1 b - - ; bm Rxf2 > >Even if the position is already won by black, finding the spectacular 24...Rxf2 >seems quite difficult for some engines. Ruffian is clearly the fastest i tried >so far on my 2.1XP+ : > >Ruffian 1.0.0 2 seconds >Shredder5 14 seconds >IsiChessMMX 47 seconds > >May be a bad testposition due to Nxe3 wins too. > >Cheers, >Gerd For Horizon, about 5 seconds on an AMD 1.8MHz w/ 60MB hash Depth Score Time Nodes pv 5 50 .55 23000 Nxe3 a5 Qa7 fxe3 Bxa3 Rxa3 Qxe3+ 6 57 .77 64012 Nxe3 a5 Qa7 fxe3 Qxe3+ Kh1 Rf2 Rg1 Bxa3 Rxa3 7 87! 1.05 138888 Nxe3 fxe3 Qxe3+ Kh1 Rf2 Qxg7+ Kxg7 Re1 7 245 1.49 252493 Nxe3 a5 Qa7 fxe3 Qxe3+ Kh1 Rf2 Re1 Qh3 8 270 2.80 672701 Nxe3 a5 Qa7 fxe3 Qxe3+ Kh1 Rf2 Re1 Qd2 Be4 Bxe4 Rxe4 Bxa3 Rxa3 8 274! 5.17 1325481 Rxf2 Nf6+ Bxf6 Bxf2 Nxf2 Qh7+ Kf8 Qh8+ Ke7 b4 8 512 7.31 1868282 Rxf2 Nf6+ Bxf6 Qh7+ Kf8 Bxb6 Rxg2+ Kf1 Nxh2+ Ke1 Bh4+ Bf2 Bxf2+ Kd2 Bc5+ Ke1 Rxc2 9 541! 14.06 3847018 Rxf2 Qxg4 Qxe3 axb5 axb5 Bg6 Rxg2+ Kf1 Bxa3 Rxa3 9 586 23.13 6201317 Rxf2 Nf6+ Bxf6 Qh7+ Kf8 Bxb6 Rxg2+ Kf1 Nxh2+ Ke1 Bh4+ Bf2 Bxf2+ Kd2 Bg3+ Kc1 Bf4+ Kb1 Rxc2 10 615! 43.61 11747102 Rxf2 Nf6+ Bxf6 Qh7+ Kf8 Nxc4 Rxg2+ Kh1 Rxh2+ Kg1 Nxe3 Qh8+ Kf7 Bg6+ Kxg6 Kxh2 10 790 64.43 16985390 Rxf2 Nf6+ Bxf6 Qh7+ Kf8 Bxb6 Rxg2+ Kf1 Nxh2+ Ke1 Bh4+ Bf2 Rxf2 Rd6 Rf1+ Ke2 Bf3+ Ke3
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