Author: Andrew Smith
Date: 11:53:11 01/16/02
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On January 16, 2002 at 11:17:11, Matthew Barnett wrote: >[D]r6r/1b1n1pk1/p3p1pR/1p1pP1P1/2q2P2/P1N2B2/1PP4Q/2KR4 w - - 0 24 > >Here, in a correspondence game, I played Nxd5 and went on to win. I'm trying to >work out how good it is against the other more obvious move, Rh1. Personally, I >think it is at least as good as Rh1, if not better (that's why I played it at >the time!) although the dividends aren't really seen until the endgame. > >When it comes to using Deep Fritz (Athlon 1900+ 128MB RAM), it doesn't see the >possibility for a long, long time. If I make it analyse the position from Nxd5, >it likes it much more quickly and by quite a bit after about 18 ply. > >Does anyone's engine see Nxd5 reasonably quickly and what do they think of it >when Nxd5 is played? > >Many thanks > >Matthew Crafty goes for f5, with a score that is quite a bit higher than Rh1. New position r6r/1b1n1pk1/p3p1pR/1p1pP1P1/2q2P2/P1N2B2/1PP4Q/2KR4 w - - 0 1 Analysis by Crafty 18.10: 1.Rh1 Rxh6 2.Qxh6+ ± (0.85) Depth: 1/10 00:00:00 1.Rh1 Rhc8 ± (0.80) Depth: 2/10 00:00:00 1.Rh1 Rhc8 2.Kb1 ± (1.13) Depth: 3/10 00:00:00 1.Rh1 Rhc8 2.Rh7+ Kf8 3.Kb1 ± (1.06) Depth: 4/10 00:00:00 1.Rh1 Rhc8 2.Rh7+ Kf8 3.Kb1 +- (1.46) Depth: 5/15 00:00:00 1.Rh1 Rhc8 2.Rxg6+ Kf8 3.Rg8+ Ke7 4.Rg7 +- (1.54) Depth: 5/15 00:00:00 1.Rh1 Rhg8 2.Rh7+ Kf8 3.Kb1 Ke8 4.Qd2 Rc8 ± (1.29) Depth: 6/19 00:00:01 116kN 1.Rh1 Rhg8 2.Rh7+ Kf8 3.Kb1 Rc8 4.Be2 Qc5 5.Bg4 +- (1.46) Depth: 7/19 00:00:03 258kN 1.Rh1 Rhg8 2.Rh7+ Kf8 3.Kb1 Rc8 4.Qd2 Rg7 5.Rh8+ Ke7 6.Rxc8 Qxc8 ± (1.28) Depth: 8/19 00:00:08 608kN 1.Rh1 Rhg8 2.Rh7+ Kf8 3.Kb1 Rc8 4.Na2 Ke7 5.Qd2 Nf8 6.Be2 ± (1.22) Depth: 9/23 00:00:32 2445kN 1.Rh1 Rhg8 2.f5 gxf5 3.Rxe6 Kf8 4.Rd6 Rd8 5.Qd2 Kg7 6.Qh2 +- (1.46) Depth: 10/26 00:01:38 7922kN 1.Rh1 Rhg8 2.f5 gxf5 3.Rxe6 Kf8 4.Rd6 Rd8 5.Qd2 Kg7 6.Qh2 +- (1.86) Depth: 11/31 00:06:38 34574kN 1.Rh1 Rhe8 2.Rxg6+ fxg6 3.Qh7+ Kf8 4.Qxd7 Qxf4+ 5.Kb1 Re7 6.Rh8+ Kg7 7.Qxe7+ Kxh8 8.Qxb7 Rf8 9.Be2 d4 +- (2.13) Depth: 11/31 00:12:11 67542kN 1.Rh1 Rhe8 2.Rxg6+ fxg6 3.Qh7+ Kf8 4.Qxd7 Qxf4+ 5.Kb1 Re7 6.Rh8+ Kg7 7.Qxe7+ Kxh8 8.Qxb7 Rf8 9.Be2 d4 +- (2.13) Depth: 12/34 00:17:11 98755kN 1.f5 +- (2.53) Depth: 12/34 00:50:55 309673kN 1.f5 gxf5 2.Rh1 Rhg8 3.g6 Kf8 4.gxf7 Rg5 5.Rh8+ Ke7 6.Rg8 Nxe5 7.Rxa8 Bxa8 8.Qxe5 Kxf7 +- (3.04) Depth: 12/34 01:12:30 451037kN 1.f5 gxf5 2.Rh1 Rhg8 3.g6 Kf8 4.gxf7 Rg5 5.Rh8+ Ke7 6.Rg8 Nxe5 7.Rxa8 Bxa8 8.Qxe5 Kxf7 +- (3.44) Depth: 13/38 01:58:50 773168kN (only, MyTown 20.11.2001)
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