Author: John Merlino
Date: 14:38:53 10/31/02
Go up one level in this thread
On October 31, 2002 at 15:06:52, K. Burcham wrote: >On October 31, 2002 at 12:11:50, stuart taylor wrote: > >>What I'm really interested in is REAL genius. When I was younger, sacrifices >>which are quite normal for me to imagine now, were then quite unbelievable. >> But now, whenever I think something might be really great, a computer normally >>shows it not too be sound. In fact, I haven't seen anything truly extraordinary >>and unexpected for a long time. Perhaps I'm already familiar with all the >>warning signs that one encounters in practical games, so things are not so >>unbelievable-for me. >> Didn't Tal have some things which no one else would have imagined? were they >>sound? >> But I mean REALLY unexpected! >>S.Taylor > > >Depends on your meaning. >This knight sacrifice should win for black. >11...Nxf2 >This move is in the Tiger ct.tbk book. Of course tiger would never play into >this position. There are several moves in this line Tiger will not play. > >Set this position up and see how long it takes your program to play this move. >If your program wont play this move, then take the f2 pawn and see how long it >takes your programs score to show white is down with the knight sacrifice. > > > [D] r2q1rk1/ppp1b1pp/2n5/3p1p2/3Pn1b1/2PB4/PPQN1PPP/RNB1R1K1 b - - 0 1 > >[White "Kugayevsky"] >[Black "Kmielevsky"] >[Result "0-1"] >[ECO "C42"] > >1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 >d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 >f5 10. Qc2 O-O 11. Nfd2 Nxf2 12. Rxe7 Bd1 0-1 Even after forcing 11...Nxf2, Chessmaster 9000 does not see an advantage for Black until after well over one hour: Time Depth Score Positions Moves 0:00 1/3 1.51 1227 2.Kxf2 Bh4+ 3.g3 Qd6 4.Kg1 0:00 1/4 1.32 2803 2.Kxf2 Bh4+ 3.g3 Qd6 4.Kg2 Bg5 0:00 1/5 1.35 14238 2.Kxf2 Qd6 3.Kg1 Bh4 4.Rf1 Qe6 0:00 1/6 1.50 42736 2.Kxf2 Qd6 3.Kg1 Bh4 4.Rf1 Rae8 5.Bxf5 Bxf5 6.Rxf5 0:00 1/7 1.61 147633 2.Kxf2 Qd6 3.Nf1 Rad8 4.h3 Bxh3 5.gxh3 Bh4+ 6.Ke2 Bxe1 7.Kxe1 0:02 1/8 1.58 465986 2.Kxf2 Bd6 3.g3 Qf6 4.Nf3 Bxf3 5.Kxf3 Bb4 6.Kf2 Nxd4 7.cxd4 Bxe1+ 8.Kxe1 Qxd4 9.Bxf5 0:04 1/9 1.18 909289 2.Kxf2 Bd6 3.Nf1 Qh4+ 4.g3 Qh5 5.Kg1 f4 6.b3 fxg3 7.Nxg3 0:10 1/10 1.01 2180391 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Re2 Qh4+ 10.Kg2 0:21 2/11 1.13 4731141 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bh3+ 6.Kxh3 Bxg3 7.Nf3 Rxf3 8.Bxh7+ Kh8 9.Kg2 Qh4 10.Rh1 0:57 3/12 0.04 13786088 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bg6+ Bh4 9.Nf1 Bf3+ 10.Kh2 Qg4 11.Rg1 3:20 4/13 0.09 51548919 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bg6+ Bh4 9.Nf1 Qf6 10.Ne3 Ne7 11.Be4 Bf3+ 12.Bxf3 Qxf3+ 13.Kg1 16:02 5/14 0.00 268546737 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bd3+ Bh4 9.Nf1 Bf3+ 10.Kh2 Rf4 11.Bxf4 Qxf4+ 12.Kg1 Qg4+ 13.Kh2 Qf4+ 1:18:16 6/15 -0.60 1373043015 2.Kxf2 Bh4+ 3.g3 f4 4.Kg2 fxg3 5.hxg3 Bxg3 6.Bxh7+ Kh8 7.Rh1 Qg5 8.Bg8+ Kxg8 9.Qh7+ Kf7 10.Nb3 Bf3+ 11.Kxf3 Ke7+ 12.Ke2 Qg4+ 13.Kd3 Rf2 14.Re1+ Kf7 15.Nc5 jm
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