Author: Heiner Marxen
Date: 11:43:09 08/09/02
Go up one level in this thread
On August 07, 2002 at 16:48:53, Gian-Carlo Pascutto wrote: >On August 07, 2002 at 09:01:54, Bas Hamstra wrote: > >>>[D] 3R4/5r1p/5ppk/8/1Q3PPq/5P2/6K1/8 w - - bm Rg8 >>> >> >>I let Tao run over night, hoping to find a mate. But it sticks to Rd1 and found >>no better move. If there is a mate it is extremely deep. >> >>Best regards, >>Bas. > >There is a mate...in no more than 40 moves. > >Sjeng: prove > >Max time to search (s): 100000 > >P: 0 D: 1410080213 N: 9775102 S: 9775101 Mem: 261.02M Iters: 548842 MaxDepth: 80 >Time : 43.960000 >This position is WON. >PV: d8g8 f6f5 g4g5 h6h5 b4d6 h4g5 f4g5 f5f4 d6e6 h5g5 e6f7 g5h5 f7h7 h5g5 h7g6 >g5h4 g6g5 > >-- >GCP Chest confirms a mate in 10 with 1.Rg8 as only key move (Athlon 1500+, 128MB, all 4-piece and some 5-piece tables, 4.3 hours): PV: Rg8 f5 g5+ Qxg5+ fxg5+ Kxg5 Qd4 f4 Qe5+ Rf5 Qe7+ Rf6 Rf8 h6 Qxf6+ Kh5 Rh8 g5 Rxh6# Cheers, Heiner
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