Problem Display
PID: 26850 (8/8/1pN5/8/2R5/1k1B4/8/2K5 w - - 0 1)

Borovik, Boris V

British Chess Magazine, 1991

8/8/1pN5/8/2R5/1k1B4/8/2K5

#3

4 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Kb1?
      • 1...Ka3
        • 2.Bc2
          • 2...b5
            • 3.Rc3#
      • 1...b5!
    • 1.Sd4+?
      • 1...Ka2
        • 2.Ra4#
      • 1...Ka3!
    • 1.Bc2+?
      • 1...Ka2
        • 2.Ra4#
      • 1...Ka3
        • 2.Ra4#
      • 1...Kxc4!
    • 1.Rc2?
      • threat
        • 2.Bc4+
          • 2...Ka3
            • 3.Ra2#
          • 2...Ka4
            • 3.Ra2#
      • 1...Ka3
        • 2.Bc4
          • threat
            • 3.Ra2#
          • 2...Ka4
            • 3.Ra2#
      • 1...Ka4
        • 2.Bc4
          • threat
            • 3.Ra2#
          • 2...Ka3
            • 3.Ra2#
        • 2.Rc3
          • 2...b5
            • 3.Bc2#
      • 1...b5!
    • 1.Rc3+?
      • 1...Ka2
        • 2.Sb4+
          • 2...Ka1
            • 3.Ra3#
        • 2.Bb1+
          • 2...Ka1
            • 3.Ra3#
        • 2.Bc4+
          • 2...Ka1
            • 3.Ra3#
        • 2.Bb5
          • 2...Ka1
            • 3.Ra3#
      • 1...Ka4
        • 2.Kb1
          • 2...b5
            • 3.Bc2#
        • 2.Kd1
          • 2...b5
            • 3.Bc2#
        • 2.Kb2
          • 2...b5
            • 3.Bc2#
            • 3.Ra3#
        • 2.Kd2
          • 2...b5
            • 3.Bc2#
        • 2.Be2
          • 2...b5
            • 3.Bd1#
      • 1...Kxc3!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Bb5
          • 2...Kc3
            • 3.Ra3#
      • 1...Kxa4
        • 2.Kb2
          • 2...b5
            • 3.Bc2#
      • 1...b5
        • 2.Bxb5
          • 2...Kc3
            • 3.Ra3#

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