Author: Uri Blass
Date: 00:43:39 09/20/00
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On September 20, 2000 at 00:17:42, Dann Corbit wrote: >On September 19, 2000 at 23:58:24, Uri Blass wrote: >[snip] >[D]r1b2rk1/pp4p1/4pb1B/2P5/Pq2B3/1P6/2QP1P2/2KR2R1 w - - acd 14; acn >-2039212006; ce 1352; pv Rxg7+ Bxg7 Bh7+ Kh8 Bxg7+ Kxg7 Qg6+ Kh8 Qh5 Qa3+ Kc2 >Qxc5+ Qxc5 Bd7 Qd4+ Kxh7 Qxd7+ Kg6 Qxe6+ Kh5 Qe5+ Rf5 Qxf5+ Kh6 Rh1+ Kg7 Rh7+ >Kg8 Rxb7; pm Rxg7+; bm Rxg7; > >>This position was solved by chessmaster6000(ss=10) >>It can see that Rxg7+ is mate in 15 at tournament time control. > >Can you post the analysis? The score of it was improved to mate in 14 in a few minutes(I do not remember the exact time but it was less than 10 minutes on pIII450). The main line when the score is mate in 14 is the same main line that you posted in the first 7 moves. I think that the first different move was 8.Qe5+ instead of 8.Qd4+ but I am not sure. Chessmaster gives on the screen 2 number for the depth(I guess that the first one is the depth without null move pruning and the second one is probably the depth with null move pruning) It does not claim to analyze the positions to 16 plies but it claims to find mates. It found mate in 20 in another position after 19:12 and it continues to analyze it(maybe it is going to find faster mate). I am going to post the analysis in another post. Uri
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