Author: John Merlino
Date: 17:58:56 10/11/03
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On October 11, 2003 at 19:23:53, Jorge Pichard wrote: >Ruffian announced Mate in 17 against itself and Smarthink evaluation stated Mate >in 20, before Ruffian Resigned. > >[D]8/8/3k4/3p4/8/1P2K3/7P/8 b - - It is a mate in 15 if Black plays Ke5 or Kc5. It is a mate in 14 if Black plays anything else. This is easily determined by looking at the 5-piece EGTBs (if you have them). Here is one possible ending: [Event ""] [Site ""] [Date "2003.10.11"] [Round ""] [White "Chessmaster"] [Black "Chessmaster"] [TimeControl "600"] [Result "1-0"] [Setup "1"] [FEN "8/8/3k4/3p4/8/1P2K3/7P/8 b - - 0 1"] 1...Kc5 2.h4 d4+ 3.Kd3 Kd6 4.b4 Ke7 5.b5 Kd6 6.h5 Ke7 7.b6 Kd6 8.h6 Kd7 9.h7 Kc6 10.h8=Q Kxb6 11.Qf6+ Kc7 12.Kc4 d3 13.Kc5 d2 14.Qe7+ Kb8 15.Kb6 d1=Q 16.Qb7# 1-0 jm
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