Author: Vincent Lejeune
Date: 07:03:42 10/16/98
Go up one level in this thread
On October 16, 1998 at 03:15:49, blass uri wrote: >On October 15, 1998 at 18:14:38, Vincent Lejeune wrote: > >>On October 15, 1998 at 17:33:53, blass uri wrote: >> >>> >>>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 >> >>27...Rxh4 is followed by Bxe6 ... >with advantage for black after 28...Bc6 29.Nf3 Rh3 30.Nd4 Rxe3 31.Bxf5 Kf6 > >Uri Thanks to have helped me to construct the best line ... It Seems to be : 20... Bd7 21. Rab1 b5 22. Re3 Nxe5 23. g3 Ng4 24. Qxg7+ Kxg7 25. gxf4 Nxe3 26. fxe3 Rh8 27. Bf7 Rxh4 28. Bxe6 Bc6 29. Nf3 Rh3 30. Nd4 Rxe3 31. Bxf5 -+ Despite all my efforts (I had white in this game ...) I have not found a best move to refute 20...Bd7 A slightly equivalent move is 21. Rad1 c3 22. g3 Qa4 23. Nf7! Rxf7 24. Bxf7+ Kxf7 25. Qf6+ Kg8 26. Qg5+ Kh7 27. Qh5+ Kg7 28. Qg5+ Ng6 (the only move to avoid repetition) 29. h5 Qg4 30.Qf6+ Kh6 31.hxg6 Qxg6 -+ Very good work ...thanks again ...
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