Author: John Merlino
Date: 15:29:04 03/30/04
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On March 30, 2004 at 18:21:40, John Merlino wrote: >On March 30, 2004 at 18:05:08, Derek Paquette wrote: > >>This was posted on chessbase, the correct move is rxc3, >> >>as soon as i play rxc3 the eval goes nuts and sky rockets, but yet it can't seem >>to find it on its own! >> >>2r2rk1/pp3pp1/4bb1p/q2p1P1Q/3P4/2N5/PP4PP/1K1R1B1R b - - 0 1 > >Ditto for Chessmaster 9000, SKR personality, on an AMD XP 2500+ (new work >computer): > >Time Depth Score Positions Moves >0:00 1/3 -1.14 1606 1...Bd7 2.Qf3 Ba4 3.Rd2 >0:00 1/4 -1.42 4898 1...Bd7 2.Qf3 Ba4 3.Rd3 Rfd8 >0:00 1/5 -1.15 13247 1...Bd7 2.Qf3 Ba4 3.Rd2 Rfe8 4.Be2 >0:00 1/6 -1.23 38717 1...Bd7 2.Qf3 Ba4 3.Nxa4 Qxa4 4.Qb3 > Qd7 5.g4 Qc7 >0:00 1/7 -1.02 104481 1...Bd7 2.Qf3 Rfd8 3.Nxd5 Bxf5+ > 4.Qxf5 Qxd5 5.Qxd5 Rxd5 6.Rc1 Rxc1+ > 7.Kxc1 Bxd4 >0:01 1/8 -1.05 306102 1...Bd7 2.Qf3 Bc6 3.Be2 Rfd8 4.Rhf1 > Ba4 5.Rd2 >0:03 1/9 -1.11 955893 1...Bd7 2.Qf3 Ba4 3.Nxa4 Qxa4 4.Qb3 > Qxb3 5.axb3 Rfe8 6.Bb5 Re4 7.Bd7 > Rd8 >0:10 1/10 -1.05 2987829 1...Bd7 2.Qf3 Bc6 3.Be2 Rfe8 4.h4 > Qb4 5.Qd3 Rcd8 6.Qd2 Qe7 >0:32 1/11 -1.06 8323240 1...Bd7 2.Qf3 Ba4 3.Rd2 Rfe8 4.Be2 > Bg5 5.Rd3 Red8 6.h4 Bf6 7.Rd2 >1:10 1/12 -1.17 19459072 1...Bd7 2.Qf3 Ba4 3.Rd2 Rfe8 4.Be2 > Bg5 5.Rd3 Qc7 6.h4 Bf6 7.Rc1 Qe7 >3:02 1/13 -1.19 52725008 1...Bd7 2.Qf3 Ba4 3.Rd2 Bc6 4.Rd1 > Rfd8 5.Qd3 Ba4 6.Nxa4 Qxa4 7.Qb3 > Qc6 8.Bb5 > >jm Whoops, submitted too soon. The King also cannot find Rxc3, but the REASON for that is because it's eval for Rxc3 is MUCH worse than that for Bd7 (shown above) -- almost a full point! After forcing 1...Rxc3, it says: Time Depth Score Positions Moves 0:00 1/3 -1.10 1610 2.bxc3 Qxc3 3.fxe6 Qb4+ 4.Kc2 Rc8+ 5.Kd3 Qxd4+ 6.Ke2 0:00 1/3 -0.35 2314 2.fxe6 Rc6 3.exf7+ Rxf7 4.Be2 0:00 1/4 -0.86 3838 2.fxe6 Rc6 3.exf7+ Rxf7 4.Be2 Qa4 0:00 1/5 -0.54 15630 2.fxe6 Rc7 3.exf7+ Rfxf7 4.Qg4 Qa4 5.Rd2 0:00 1/6 -0.82 55626 2.fxe6 Rc7 3.exf7+ Rfxf7 4.Be2 Qa4 5.Ka1 Rc2 0:00 1/7 -0.34 172122 2.fxe6 Rc7 3.exf7+ Rcxf7 4.Be2 Bg5 5.Qg6 Be3 6.Rhf1 Rxf1 7.Bxf1 0:02 1/8 -0.24 548625 2.fxe6 Rc7 3.Bd3 fxe6 4.Qg6 Qb4 5.Qh7+ Kf7 6.Qg6+ Ke7 7.Qg3 Rcc8 0:05 1/9 -0.14 1552630 2.fxe6 Rc7 3.exf7+ Rfxf7 4.Be2 Qb6 5.Qxd5 Rd7 6.Qe4 Bxd4 0:14 1/10 -0.12 4139215 2.fxe6 Rc7 3.exf7+ Rfxf7 4.Bd3 Bxd4 5.Qg6 Qb6 6.Qh7+ Kf8 7.Qh8+ Ke7 8.Rhe1+ Be3 9.Qb8 Kd6 10.Qd8+ Rfd7 0:49 1/11 -0.33 14917441 2.fxe6 Rc6 3.exf7+ Rxf7 4.h4 Qb6 5.Qxd5 Rd6 6.Qb5 Rxd4 7.Rxd4 Qxd4 8.Bc4 2:05 1/12 -0.18 39187000 2.fxe6 Rc6 3.exf7+ Rxf7 4.h4 Kf8 5.Be2 Qa4 6.Rhf1 Qc2+ 7.Ka1 Rfc7 8.Rb1 Qe4 9.Bb5 Rc2 5:46 1/13 -0.12 110433644 2.fxe6 Rc6 3.exf7+ Rxf7 4.h4 Kf8 5.Be2 Qa4 6.b3 Qa5 7.Bf3 Ra6 8.a4 Qc3 9.Qxd5 Rc7 jm
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