Author: leonid
Date: 18:06:10 02/03/03
Go up one level in this thread
On February 03, 2003 at 00:55:39, Luis Smith wrote: >On February 03, 2003 at 00:51:08, Omid David Tabibi wrote: > >>On February 03, 2003 at 00:21:38, Luis Smith wrote: >> >>>Here's a position that came across during one of my games on Fics that I tweaked >>>a little. >>> >>>[D]rq2b1k1/p2Rp2p/1p2np1Q/2p5/2P1P3/P4PN1/2P2PKP/3R4 w - - 0 33 >>> >>>Ruffian found mate in 14...beginning with...Rxe7! >>> >>>Analysis by Ruffian 1.0.1: >>> >>>33.Rxe7 Bf7 34.Rxf7 Kxf7 35.Rd7+ Ke8 36.Qxh7 Ng7 37.Qxg7 Qxg3+ 38.fxg3 a6 >>>39.Qf7# >>> +- (5.36) Depth: 1/1 00:00:00 >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 b5 36.Qh8+ Kf7 37.Rxe8 Rxe8 38.Qh7+ Kf8 >>> +- (6.34) Depth: 2/7 00:00:00 >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 b5 36.Qh8+ Kf7 37.Rxe8 Rxe8 38.Qh7+ Kf8 >>> +- (9.01) Depth: 3/9 00:00:00 >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 Ba4 >>> +- (8.97) Depth: 4/10 00:00:00 >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 Ba4 36.Qe7+ Kg8 37.Rxf6 >>> +- (10.75) Depth: 5/14 00:00:00 >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 b5 36.Rxe8+ Kxe8 37.Qg8+ Ke7 38.Nf5+ Qxf5 >>>39.Qg7+ Ke8 40.exf5 >>> +- (12.07) Depth: 6/18 00:00:00 37kN >>>33.Rxe7 Qe5 34.Qxh7+ Kf8 35.Nf5 Qxf5 36.exf5 Nf4+ 37.Kf1 Nh5 38.Rde1 Ng3+ >>> +- (12.32) Depth: 7/20 00:00:00 324kN >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 b5 36.Rdd6 Bf7 37.Qh8+ Bg8 38.Rxf6+ Qxf6 >>>39.Qxf6+ Ke8 40.cxb5 >>> +- (16.85) Depth: 8/22 00:00:01 1034kN >>>33.Rxe7 >>> +- (17.20) Depth: 9/23 00:00:02 1434kN >>>33.Rxe7 Qf4 34.Qxh7+ Kf8 35.Rxe6 Bg6 36.Qh8+ Kf7 37.Qxa8 Qc7 38.Qe8+ Kg7 39.Re7+ >>>Qxe7 40.Qxe7+ Bf7 41.Rd7 a6 42.Qxf7+ >>> +- (20.72) Depth: 9/25 00:00:04 3350kN >>>33.Rxe7 >>> +- (20.37) Depth: 10/28 00:00:08 5746kN >>>33.Rxe7 Bg6 34.Rxh7 Qe8 35.Rdd7 Qxd7 36.Rxd7 Bf7 37.Qxf6 Rf8 38.Rxa7 >>> +- (13.28) Depth: 10/28 00:00:10 7662kN >>>33.Rxe7 Bg6 34.Rxh7 Qe8 35.Rdd7 Qxd7 36.Rxd7 Bf7 37.Qxf6 Rf8 38.Rxa7 Nd4 39.Qxb6 >>> +- (13.17) Depth: 11/29 00:00:15 9452kN >>>33.Rxe7 >>> +- (13.52) Depth: 12/30 00:00:21 12815kN >>>33.Rxe7 Bg6 34.Rxh7 Nf4+ 35.Kh1 Qf8 36.Rh8+ Kf7 37.Rxf8+ Rxf8 38.Qxf4 Kg8 39.Qh6 >>>Be8 40.Nf5 Bc6 >>> +- (13.63) Depth: 12/30 00:00:27 15653kN >>>33.Rxe7 >>> +- (13.98) Depth: 13/31 00:00:40 23830kN >>>33.Rxe7 Bg6 34.Rxh7 Nf4+ 35.Kh1 Qf8 36.Rh8+ Kf7 37.Rxf8+ Rxf8 38.Qxf4 Kg8 39.Qh6 >>>Kf7 40.Rd7+ Ke6 41.Qh3+ f5 42.Rxa7 >>> +- (14.00) Depth: 13/34 00:00:47 28217kN >>>33.Rxe7 >>> +- (14.35) Depth: 14/34 00:01:16 47845kN >>>33.Rxe7 Bg6 34.Rxh7 Nf4+ 35.Kh1 Qf8 36.Rh8+ Kf7 37.Rxf8+ Rxf8 38.Qxf4 Kg8 39.Rg1 >>>Kf7 40.Qc7+ Ke8 41.Qxa7 Rg8 42.Qb8+ Kf7 43.Qxb6 >>> +- (15.28) Depth: 14/36 00:01:36 60873kN >>>33.Rxe7 >>> +- (15.63) Depth: 15/37 00:02:43 103514kN >>>33.Rxe7 Bg6 34.Rxh7 Nf4+ 35.Kh1 Qf8 36.Rh8+ Kf7 37.Rxf8+ Rxf8 38.Nf5 Bxf5 >>>39.exf5 Ke7 40.Qxf4 Re8 41.Qe3+ Kf8 42.Qh6+ Kf7 43.Rd7+ Re7 44.Qg6+ Kf8 45.Rd8+ >>>Re8 46.Rxe8# >>> +- (#14) Depth: 15/37 00:04:12 163142kN >>>33.Rxe7 Bg6 34.Rxh7 Nf4+ 35.Kh1 Qf8 36.Rh8+ Kf7 37.Rxf8+ Rxf8 38.Nf5 Bxf5 >>>39.exf5 Ke7 40.Qxf4 Re8 41.Qe3+ Kf8 42.Qh6+ Kf7 43.Rd7+ Re7 44.Qg6+ Kf8 45.Rd8+ >>>Re8 46.Rxe8# >>> +- (#14) Depth: 16/37 00:07:39 311587kN >> >> >>Actually this is a mate in 7 :-) > >I analyzed this position with List 5.04 and found that there was a shorter >distance to mate...the shortest I saw was 12...could you please post the lines >for mate in 7? Thanx There is no mate in 7. I tried position by brute force, on LLchess mate solver, 7 moves deep and found nothing. Posibility to make a mistake on LLchess is very close to zero. Leonid. >Regards >Luis
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