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Subject: Here is a real puzzler ! How Many programs can win with White?

Author: Jorge Pichard

Date: 15:26:32 04/11/03

Which Pawn should White push in order to win, please provide Analylis.

[D]8/8/3P3P/5r2/2P5/2P4k/8/6K1 w - - 0 1


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This is another position of Reciprocal Zugzwang: If White is to play, then he
can only draw, but if Black is to play, he loses. In other words, any move by
either side weakens his position to the extend of worsening the result of the
game!

[D]1R4br/8/8/8/8/4K3/k5P1/8 w - - 0 1

• Re: Here is a real puzzler ! How Many programs can win with White? Robert Hyatt 22:40:31 04/11/03
  • Re:Here is a real puzzler ! How Many programs beside Crafty can find it? Jorge Pichard 01:09:45 04/12/03
    • Re:Here is a real puzzler ! How Many programs beside Crafty can find it? Robert Hyatt 21:44:49 04/12/03
      • Re:Here is a real puzzler ! Deep Fritz 7 ....11 Seconds? Charles Worthington 23:58:02 04/12/03
        • Re:Here is a real puzzler ! Fritz 8, 0 seconds Aaron Gordon 01:51:31 04/13/03
    • Re: Correction, How Many programs besides Crafty can find it? Jorge Pichard 01:10:50 04/12/03
      • At least two ... Ingo Bauer 02:29:34 04/12/03
        • One more Ingo Bauer 02:52:29 04/12/03
          • Last one Ingo Bauer 03:24:02 04/12/03

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