Problem Display
PID: 142452 (6rQ/1R1pNbr1/P2Pp3/p3n3/2k2p2/PN4Rp/p1B1P3/2B4K w - - 0 1)

Reeves, Alfred Christopher

The Problemist, 2011

6rQ/1R1pNbr1/P2Pp3/p3n3/2k2p2/PN4Rp/p1B1P3/2B4K

#4

12 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Rg5!
      • threat
        • 2.Rc7+
          • 2...Kb5
            • 3.Bd3+
              • 3...Ka4
                • 4.Sc5#
              • 3...Kb6
                • 4.Rb7#
      • 1...Kc3
        • 2.Rc7+
          • 2...Sc4
            • 3.Rxc4+
              • 3...Kxc4
                • 4.Rc5#
      • 1...Rxg5
        • 2.Bd3+
          • 2...Kc3
            • 3.Rc7+
              • 3...Kxb3
                • 4.Bc2#
      • 1...Rb8
        • 2.Rc7+
          • 2...Kb5
            • 3.Bd3+
              • 3...Ka4
                • 4.Sc5#
              • 3...Kb6
                • 4.Qxb8#
            • 3.Qxb8+
              • 3...Ka4
                • 4.Sa1#
                • 4.Sd2#
                • 4.Sd4#
                • 4.Sc5#
              • 3...Kxa6
                • 4.Sc5#
                • 4.Ra7#
                • 4.Qb7#
      • 1...Bg6
        • 2.Rxe5
          • threat
            • 3.Rc5#
            • 3.Rc7#
          • 2...Be4+
            • 3.Rxe4+
              • 3...Kc3
                • 4.Rc7#
      • 1...Be8
        • 2.Rc7+
          • 2...Kb5
            • 3.Bd3+
              • 3...Ka4
                • 4.Sc5#
              • 3...Kb6
                • 4.Sc8#
                • 4.Rb7#
      • 1...f3
        • 2.Rc7+
          • 2...Kb5
            • 3.Bd3+
              • 3...Ka4
                • 4.Sc5#
              • 3...Kb6
                • 4.Be3#
                • 4.Rb7#
        • 2.Qh4+
          • 2...Kc3
            • 3.Rc7+
              • 3...Sc4
                • 4.Rxc4#
                • 4.Qxc4#
              • 3...Sc6
                • 4.Rc5#
            • 3.Bd1
              • threat
                • 4.Qd4#
              • 3...Sg4
                • 4.Rc5#
                • 4.Rc7#
              • 3...Sc6
                • 4.Rc5#
      • 1...a4
        • 2.Rc7+
          • 2...Kb5
            • 3.Bd3+
              • 3...Kb6
                • 4.Rb7#

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