Author: John Merlino
Date: 10:48:26 08/15/02
Go up one level in this thread
On August 15, 2002 at 12:17:20, Sandi Ordinario wrote: >On August 14, 2002 at 14:39:03, John Merlino wrote: > >>On August 14, 2002 at 10:22:18, Mustafa wrote: >> >>>take a look at this position can CM 9000 find the move Nxe4!! the game was >>>played between Junior 7 and Nxe4!! was made now can any other program make this >>>move and junior 7 was using my own settings with some changes in the paramettre. >>> >>>[D]r1bq1rk1/p1bnn1pp/2p5/2P2pP1/3pp3/Q1N4P/PP1BPPB1/2KR2NR w - - 0 15 >>> >>>Nxe4 was made by junior 7 which resulted a win for junior. >> >>Chessmaster 9000, on my humble PIII-600, does not see the move in under five >>minutes: >> >>Time Depth Score Positions Moves >>0:00 1/3 -0.99 989 15.Nb1 a5 16.Qb3+ Nd5 >>0:00 1/4 -0.93 3603 15.Nb1 a5 16.e3 Ne5 17.Qb3+ Kh8 >>0:00 1/5 -1.31 10418 15.Nb1 Nd5 16.h4 Qe7 17.b4 a5 >>0:00 1/6 -1.27 28323 15.Nb1 Nd5 16.h4 Qe7 17.b4 a5 18.e3 >>0:01 1/7 -1.46 73898 15.Nb1 Nd5 16.h4 Qe7 17.b4 a5 18.e3 >> Bb7 >>0:03 1/8 -1.46 172763 15.Nb1 Nd5 16.h4 Qe7 17.b4 a5 18.e3 >> Bb7 >>0:09 1/9 -1.57 537204 15.Nb1 Nd5 16.Qa4 Qe7 17.Qxd4 Be5 >> 18.Qc4 Qxc5 19.Qxc5 Nxc5 20.Nc3 >> Bb7 21.Nxd5 cxd5 >>0:27 1/10 -1.57 1654378 15.Nb1 Nd5 16.Qa4 Qe7 17.Qxd4 Be5 >> 18.Qc4 Qxc5 19.Qxc5 Nxc5 20.Nc3 >> Bb7 21.Nxd5 cxd5 >>1:04 2/11 -1.69 3957291 15.Nb1 Nd5 16.Qa4 Qe7 17.Qxd4 Be5 >> 18.Qc4 Qxc5 19.Qxc5 Nxc5 20.Nc3 >> Rb8 21.h4 Be6 22.Nxd5 cxd5 >>2:22 2/11 -1.64 8680811 15.Na4 Rb8 16.h4 Nd5 17.b3 Qe7 >> 18.e3 d3 19.Kb1 Bb7 20.Nh3 Rbe8 >>5:01 3/12 -1.49 18388245 15.Na4 Rb8 16.h4 Nd5 17.b3 Qe7 >> 18.Kb1 Rb5 19.e3 d3 20.Rc1 Re8 >> 21.f4 exf3ep 22.Bxf3 >> >>After forcing Nxe4 fxe4 Bxe4, here is what CM9000 says: >> >>Time Depth Score Positions Moves >>0:00 1/3 -2.26 1754 16...Rxf2 17.Nf3 Rxe2 18.Rhe1 >>0:00 1/4 -2.02 5681 16...Rxf2 17.Nf3 Ne5 18.Be3 >>0:00 1/5 -2.02 16566 16...Rxf2 17.Nf3 Ne5 18.Be3 Nc4 >>0:01 1/6 -1.45 52299 16...Rxf2 17.Nf3 Rxe2 18.Bd3 Rf2 >> 19.Bc4+ Nd5 20.Nxd4 >>0:01 1/6 -1.72 74589 16...Nd5 17.Qd3 Kh8 18.Qxd4 Be5 >> 19.Qa4 Nxc5 >>0:03 1/7 -1.87 200968 16...Nd5 17.Qd3 Qe7 18.b4 a5 19.Bxh7+ >> Kh8 20.Nf3 axb4 >>0:08 1/8 -1.86 469598 16...Nd5 17.Qd3 Qe7 18.Nf3 Nxc5 >> 19.Bxh7+ Kh8 20.Qc2 Bd7 21.Bg6 >> Qxe2 22.Nxd4 >>0:22 1/9 -1.86 1398196 16...Nd5 17.Qd3 Qe7 18.Nf3 Nxc5 >> 19.Bxh7+ Kh8 20.Qc2 Bd7 21.Bg6 >> Qxe2 22.Nxd4 >>0:57 1/10 -1.86 3556990 16...Nd5 17.Qd3 Qe7 18.Nf3 Nxc5 >> 19.Bxh7+ Kh8 20.Qc2 Bd7 21.Bg6 >> Qxe2 22.Nxd4 >>2:46 2/11 -1.90 10654857 16...Nd5 17.Qd3 Qe7 18.Nf3 Rb8 >> 19.Bxh7+ Kh8 20.Nxd4 Qxc5+ 21.Kb1 >> Ne5 22.Qe4 Rxf2 23.Bf5 Bxf5 24.Nxf5 >>4:15 2/11 -2.00 16424662 16...Rxf2 17.Nf3 Rxe2 18.Rhe1 Rxe1 >> 19.Bxe1 Nd5 20.Rxd4 Qe7 21.Rc4 Ne5 >>8:43 3/12 -2.05 34407631 16...Rxf2 17.Nf3 Rxe2 18.Rde1 Rxe1+ >> 19.Rxe1 Ne5 20.Nxe5 Bxe5 21.Bxh7+ >> Kxh7 22.Rxe5 Bf5 23.Qf3 g6 24.Qb3 >> >>So the difference is more than 0.5 pawns. >> >>jm >Hi John! > >Please interpret for me what CM9000 has analyzed from Mustafa's position that he >claims Junior7's move Nxe4 would win. I am lost among the trees. Does CM9K say >that it is not the best move and that if Junior played against it that Junior >would probably lose or draw? Thanks. > >Sandi You cannot make a judgement based on the information so far. Junior played the move and won (against a human, I believe). Chessmaster 9000 would not play the move, because analysis (admittedly on a slow machine, and not very extensive analysis at that) showed that Junior's move loses approximately a half-pawn in the eval. That is all you can say. Saying whether the move actually IS the best or not requires more analysis, preferably by many other engines.... jm
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