Author: blass uri
Date: 14:33:53 10/15/98
Go up one level in this thread
On October 15, 1998 at 15:42:03, Vincent Lejeune wrote: >On October 15, 1998 at 14:29:35, Moritz Berger wrote: > >>I tried the position with Junior 5 on PII-450 (256 MB RAM, 128 MB hash tables). >>I wouldn't trust any computer analysis in this position, though, it's very >>complicated even for the best programs on fast hardware ... >> >>Moritz >> >>Initial position: >>r1b3k1/pp2n1r1/2n1p2Q/3pPpNB/2p2q1P/P7/2P2PP1/R3R1K1 b - h3 0 1 >> >>Analysis by Junior 5.0: >> >>20...c3 21.Re3 Bd7 22.Rae1 Qd4 23.Nxe6 Bxe6 24.Qxe6+ Kh7 25.Qf6 >> -+ (-1.78) depth: 14 00:00:38 13662kN >>20...c3 21.Re3 Nxe5 22.g3 Ng4 23.Qxg7+ Kxg7 24.gxf4 Nxe3 25.fxe3 Ng6 26.Bxg6 >>Kxg6 27.Kf2 >> ³ (-0.40) depth: 16 00:01:53 41026kN >>20...Nd8 21.Re3 Nec6 22.c3 d4 23.g3 Qxg5 24.hxg5 dxe3 25.fxe3 Nxe5 26.Rd1 >> µ (-1.32) depth: 16 00:02:18 50099kN >>20...Bd7 21.Rad1 c3 22.g3 Qa4 23.Nxe6 Bxe6 24.Qxe6+ Kh7 25.Qd7 Qxh4 26.Qxb7 Rh8 >>27.Bf3 f4 >> -+ (-1.51) depth: 16 00:03:35 77026kN >>20...Qd4 21.Rad1 Qb2 22.Qf6 Nd8 23.Bf7+ Nxf7 24.Qxe7 Bd7 25.Nxe6 Bxe6 26.Qxe6 >>Rg4 27.Rxd5 Rxh4 28.Qxf5 >> -+ (-1.70) depth: 16 00:04:49 105737kN >>20...Qd4 21.Rad1 Qb2 22.Qf6 Nd8 23.Bf7+ Nxf7 24.Qxe7 Bd7 25.Nxe6 Bxe6 26.Qxe6 >>Rg4 27.Rxd5 Rxh4 28.Qxf5 >> -+ (-1.70) depth: 16 00:04:49 105888kN >>20...Qd4 21.Rad1 Qb2 22.Qf6 Nd8 23.Bf7+ Nxf7 24.Qxe7 Bd7 25.Nxe6 Bxe6 26.Qxe6 >> -+ (-1.70) depth: 17 00:06:31 143522kN >>20...Qd4 21.Rad1 Qb2 22.Qf6 Nd8 23.Bf7+ Nxf7 24.Qxe7 Bd7 25.Nxe6 Bxe6 26.Qxe6 >> -+ (-1.70) depth: 17 00:07:51 167586kN >>20...Qd4 21.Rad1 Qb2 22.Qf6 Nd8 23.Bf7+ Rxf7 24.Nxf7 Nxf7 25.Qxe7 Nxe5 26.Qg5+ >>Kf7 27.Qh5+ Ng6 28.Qh7+ Qg7 29.Qxg7+ Kxg7 >> -+ (-1.42) depth: 18 00:13:44 293349kN >>20...Bd7 21.Rad1 c3 22.g3 Qa4 23.Nf7 Rxf7 24.Bxf7+ Kxf7 25.Qh7+ Kf8 26.Qh6+ Kg8 >> -+ (-1.48) depth: 18 00:17:11 367476kN >>20...Bd7 21.Rad1 c3 22.g3 Qa4 23.Nf7 Rxf7 24.Bxf7+ Kxf7 25.Qh7+ Kf8 26.Qh6+ Kg8 >> -+ (-1.48) depth: 18 00:20:01 419756kN >>20...Bd7 21.Rad1 >> µ (-1.18) depth: 19 00:30:13 627583kN >>20...Bd7 21.Rad1 >> µ (-1.18) depth: 19 00:43:36 903055kN >>20...Bd7 21.Rab1 b5 22.Re3 Rf8 23.g3 Qd4 24.Nxe6 Bxe6 25.c3 Qb6 26.Qxe6+ Kh7 >>27.Bd1 f4 28.Bc2+ Ng6 29.Bxg6+ Rxg6 >> µ (-1.27) depth: 20 01:37:24 2081206kN >>20...Bd7 21.Rab1 b5 22.Re3 Rf8 23.g3 Qd4 24.Nxe6 Bxe6 25.c3 Qb6 26.Qxe6+ Kh7 >>27.Bd1 f4 28.Bc2+ Ng6 29.Bxg6+ Rxg6 >> µ (-1.27) depth: 20 02:00:00 2531581kN >> >> >>if you follow the proposed main variation, at move 22. Junior thinks that white >>is still ok: >> >> >>r5k1/p2bn1r1/2n1p2Q/1p1pPpNB/2p2q1P/P7/2P2PP1/1R2R1K1 w - b6 0 1 >> >>Analysis by Junior 5.0: >> >>22.Re3 c3 23.g3 Qc4 24.Nxe6 Bxe6 25.Qxe6+ Kh7 26.Qf6 Rag8 >> µ (-1.25) depth: 12 00:00:33 13211kN >>22.Re3 c3 23.g3 Qc4 24.Nxe6 Bxe6 25.Qxe6+ Kh7 26.Qf6 Rag8 >> µ (-1.25) depth: 12 00:00:34 13591kN >>22.Re3 Nxe5 23.g3 Ng4 24.Qxg7+ Kxg7 25.gxf4 Nxe3 26.fxe3 Rh8 27.Bf7 Rxh4 28.Bxe6 >>Rg4+ 29.Kf2 Bxe6 30.Nxe6+ >> µ (-1.22) depth: 14 00:00:47 18455kN >>22.Re3 Nxe5 23.g3 Ng4 24.Qxg7+ Kxg7 25.gxf4 Nxe3 26.fxe3 Rh8 27.Bf7 Rxh4 28.Bxe6 >>Rg4+ 29.Kf2 Bxe6 30.Nxe6+ >> µ (-1.22) depth: 14 00:01:39 36665kN >>22.Re3 Rf8 23.c3 d4 24.cxd4 a6 25.Bf7+ Rfxf7 26.Nxf7 Qxd4 27.Ng5 Nxe5 28.Nxe6 >> µ (-1.10) depth: 15 00:02:02 45112kN >>22.Re3 Rf8 23.c3 d4 24.cxd4 a6 25.Bf7+ Rfxf7 26.Nxf7 Qxd4 27.Ng5 Nxe5 28.Nxe6 >> µ (-1.10) depth: 15 00:03:47 80282kN >>22.Re3 Nxe5 23.g3 Ng4 24.Qxg7+ Kxg7 25.gxf4 Nxe3 26.fxe3 Rh8 27.Bf7 Kf6 28.h5 >>Rf8 29.Bxe6 Bxe6 30.Rxb5 >> -+ (-1.43) depth: 16 00:05:39 121470kN >>22.Re3 Nxe5 23.g3 Ng4 24.Qxg7+ Kxg7 25.gxf4 Nxe3 26.fxe3 Rh8 27.Bf7 Kf6 28.h5 >>Rf8 29.Bxe6 Bxe6 30.Rxb5 > >Ho dear ! It seems that Junior5 have overlooked 30. Nh7+ and 31.Nxf8 ;) (but >Genius5 don't when I followed this line until 27th move ...) It is a bad idea to follow a long line to decide about the position black has better moves in this line( 27...Rxh4) and Junior has no problem to see it. It is a better idea to give Junior to play against itself in the main lines to give an opinion about the position Uri > > >> -+ (-1.43) depth: 16 00:13:36 292214kN >>22.Re3 >> µ (-1.13) depth: 17 00:14:24 309018kN >> >> >>at move 25. Junior sees that white is lost: > > > >Next line seems less accurate cause it follow the first pv farther ... > > >> >>5rk1/p3n1r1/2n1b2Q/1p1pPp1B/2pq3P/P3R1P1/2P2P2/1R4K1 w - - 0 1 >> >>Analysis by Junior 5.0: >> >>25.c3 Qb6 26.Qxe6+ Kh7 27.Kh1 f4 28.Rf3 Ng6 >> µ (-1.24) depth: 9 00:00:01 310kN >>25.c3 Qxh4 26.Qxg7+ Kxg7 27.gxh4 f4 28.Ree1 Rh8 29.Bd1 a6 30.a4 Bf5 31.Ra1 Rxh4 >>32.axb5 axb5 >> -+ (-2.00) depth: 12 00:00:11 4240kN >>25.c3 Qxh4 26.Qxg7+ Kxg7 27.gxh4 f4 28.Ree1 Rh8 29.Bd1 a6 30.a4 Bf5 31.Ra1 Rxh4 >>32.axb5 axb5 >> -+ (-2.00) depth: 12 00:00:22 8176kN >>25.c3 Qxh4 26.Qxg7+ Kxg7 27.gxh4 f4 28.Ree1 Rh8 29.Bd1 Rxh4 30.Rxb5 Rh3 31.f3 >>Ng6 32.Rb7+ Kf8 33.Bc2 Ngxe5 >> -+ (-2.18) depth: 14 00:00:39 14344kN >>25.c3 Qxh4 26.Qxg7+ Kxg7 27.gxh4 f4 28.Ree1 Rh8 29.Bd1 Rxh4 30.Rxb5 Rh3 31.f3 >>Ng6 32.Rb7+ Kf8 33.Bc2 Ngxe5 >> -+ (-2.18) depth: 14 00:01:17 27671kN >>25.c3 Qd2 26.Qxe6+ Kh7 27.Rd1 Qc2 28.f4 Rfg8 29.Kf1 Rxg3 30.Rxg3 Rxg3 31.Be2 Rg7 >> -+ (-3.03) depth: 16 00:06:10 134177kN >>25.c3 Qd2 26.Qxe6+ Kh7 27.Rd1 Qc2 28.f4 Rfg8 29.Kf1 Rxg3 30.Rxg3 Rxg3 31.Be2 Rg7 >> -+ (-3.03) depth: 16 00:10:00 212891kN
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