Author: blass uri
Date: 05:10:03 07/18/00
Here is part of the logfile for game 4 --------------------------------------- --> 45. Rb4 <-- 15/70:34 --------------------------------------- hash guess Rc2a2,Guessing Ra2 ... ... 14(7) #[Kb1](-32) -32 T=610 ka1b1 Ra2a3p ra7a3R Kc5b4r ra3h3 Rf2e2 ph4h5 Re2e5p ph5h6 Re5e8 ph6h7 Re8h8 kb1c2 Kb4c4 rh3h4 Pd5d4 rh4h5 Rh8h7p I do not understand the last Rh8h7 The position on the board: [D]8/R7/2p5/2kpP3/1R5P/P7/2r2r2/K7 b - - 0 1 Deeper blue expected 45...Ra2 and at depth of 21 plies brute force calculated the main line: 46.Kb1 Rxa3 57.Rxa3 Kxb4 58.Rh3 Re2 59.h5 Rxe5 50.h6 Re8 51.h7 Rh8 52.Kc2 Kc4 53.Rh4+ d4 54.Rh5 Rxh7 I simply do not understand the idea behind the last move The move 55.Rxh7 is only 19 plies deep with no extensions and if you assume 14+7=21 plies with no extensions you can see that it is wrong. Tablebases can tell that black is mated after 55.Rxh7 and even without tablebases material count can tell easily that it is wrong. Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.