Problem Display
PID: 92590 (1b2r3/1pR3p1/p2R4/4k3/1p2r2p/n2p1QpK/4p3/8 w - - 0 1)

Mackenzie, Arthur Ford

1st Prize, Brooklyn Chess Chronicle, 1886

1b2r3/1pR3p1/p2R4/4k3/1p2r2p/n2p1QpK/4p3/8

#4

4 + 13


23 Die Schwalbe 1965
6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qf7!
      • threat
        • 2.Rd5#
      • 1...Kxd6
        • 2.Rd7+
          • 2...Kc5
            • 3.Qd5+
              • 3...Kb6
                • 4.Rxb7#
          • 2...Kc6
            • 3.Qd5+
              • 3...Kb6
                • 4.Rxb7#
      • 1...Rc4
        • 2.Rd5+
          • 2...Ke4
            • 3.Qf5+
              • 3...Ke3
                • 4.Rxd3#
        • 2.Qd5+
          • 2...Kf4
            • 3.Rf7+
              • 3...Ke3
                • 4.Qxd3#
      • 1...Rd4
        • 2.Qxe8+
          • 2...Kf4
            • 3.Rf7+
              • 3...Kg5
                • 4.Qe5#
          • 2...Kf5
            • 3.Rf7+
              • 3...Kg5
                • 4.Qe5#
          • 2...Kxd6
            • 3.Qe7+
              • 3...Kd5
                • 4.Rc5#
      • 1...Rg4
        • 2.Rd5+
          • 2...Ke4
            • 3.Qf5+
              • 3...Ke3
                • 4.Rxd3#
        • 2.Qd5+
          • 2...Kf4
            • 3.Rf7+
              • 3...Ke3
                • 4.Qxd3#
      • 1...Re6
        • 2.Rd5+
          • 2...Kxd5
            • 3.Qf5+
              • 3...Kd4
                • 4.Qc5#
              • 3...Kd6
                • 4.Qc5#
              • 3...R4e5
                • 4.Qxd3#
              • 3...R6e5
                • 4.Qd7#

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