Author: Rafael Andrist
Date: 11:31:55 09/13/03
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On September 13, 2003 at 14:08:37, John Merlino wrote: >On September 13, 2003 at 10:23:41, Frank Phillips wrote: > >>[D]8/4k3/8/8/4Kp1p/5N1N/8/8 w - - >> >>Just an amusing position. >> >>White to move and win. Perhaps the longest forced mate my program has played. >>I was not sure whether it would be caught out by the 50 moves rule. (Any credit >>goes to Eugene of course.). >> >>It traded down from B+Pawns versus 2N+Pawns to reach this endgame. My heart >>sank and I was already to fix yet another evaluation quirk - maybe still need >>to. >> >>Frank > >Kxf4 is a forced mate in 90 moves and it will NOT be caught by the 50-move rule. No, after Kxf4 it is a draw. You need 51 moves to the next forced capture/pawn push with best defence. Also, I did a short search up to depth 13 and could not find a win which would not have been prohibited by the 50-move rule. The endgame is anyway only won in about 23% of all cases and even then, you will fail to win it in more than 50% without the appropriate endgame tables. regards Rafael B. Andrist
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