Author: Richard A. Fowell
Date: 20:54:40 03/18/02
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On March 18, 2002 at 18:17:38, Art Basham wrote: [D]r1bq1rk1/1p2bppp/p3p3/n3P3/4N3/1P1P1N2/PB4PP/R3QR1K w - - > >White played Nf6+...!! ...if gxf6, 2. Qg3+ etc, > >It took my old Mach 3 about 3 hrs. to find this one... > >from the Encl. of Middle Games Clearly, the best result to date is the test version of Chessmaster 9000 (see Merlino post), but MacChess does pretty well on this position. MacChess finds this in under 10 minutes on a 867 MHz Mac G4. Here's MacChess's analysis from 1 second on - although it picks Nf6+ at 37 seconds, you can see form the eval that it doesn't really understand that it is a great move until just under 10 mintues, at ply 13. MacChess is freeware for the Macintosh - download link, manual, other Mac chess software links at: http://members.aol.com/macchess/ Ply Time Nodes Eval Principal Variation ================================================================ 08/01|00:00:01| 615415| -14| Nd6 Nc6 Nxc8 Rxc8 d4 Qd5 Rc1 Nb4 Rxc8 Rxc8 09/01|00:00:04| 2813229| -13| Nd6 Nc6 Nxc8 Rxc8 Qe4 Nb4 d4 b5 a4 Nd5 10/01|00:00:12| 8493362| -14| Nd6 Nc6 Nxc8 Rxc8 Qe4 Nb4 d4 b5 a4 Qd5 Qe3 10/42|00:00:37| 26144738| +13| Nf6+ gxf6 exf6 Bxf6 Bxf6 Qxf6 Qxa5 b5 Qc7 11/01|00:00:57| 39658250| +12| Nf6+ gxf6 exf6 Bxf6 Bxf6 Qxf6 Qxa5 b5 Qc7 12/01|00:02:10| 89366065| +15| Nf6+ gxf6 exf6 Bxf6 Bxf6 Qxf6 Qxa5 Qg6 d4 13/01|00:09:53| 405278381| +125| Nf6+ gxf6 exf6 Bxf6 Qg3+ Kh8 Ne5 Nxb3 Rxf6 14/01|00:21:52| 895772409| +133| Nf6+ gxf6 exf6 Bxf6 Qg3+ Kh8 Ne5 Bd7 Rxf6 Qxf6 Qf2 Qg7 Nxd7 e5 Bxe5 f6 Nxf8 fxe5
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