Problem Display
PID: 34677 (r2rn3/6n1/2Q2R1N/2p1k1p1/6P1/2P1Bp2/bN3P1K/8 w - - 0 1)

Rudenko, Valentin Fedorovich

1st Prize, British Chess Magazine, 1976

r2rn3/6n1/2Q2R1N/2p1k1p1/6P1/2P1Bp2/bN3P1K/8

#4

9 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Rg6!
      • threat
        • 2.Rxg5+
          • 2...Sf5
            • 3.Rxf5#
      • 1...Rd5
        • 2.Sd3+
          • 2...Ke4
            • 3.Sxc5+
              • 3...Ke5
                • 4.Sf7#
          • 2...Rxd3
            • 3.Rxg5+
              • 3...Sf5
                • 4.Rxf5#
      • 1...Bd5
        • 2.Sf7+
          • 2...Ke4
            • 3.Sxg5+
              • 3...Ke5
                • 4.Sd3#
          • 2...Bxf7
            • 3.Rxg5+
              • 3...Sf5
                • 4.Rxf5#
      • 1...Rd6
        • 2.Sd3+
          • 2...Rxd3
            • 3.Rxg5+
              • 3...Sf5
                • 4.Rxf5#
        • 2.Bd4+
          • 2...Rxd4
            • 3.Qxc5+
              • 3...Ke4
                • 4.Qxd4#
              • 3...Kf4
                • 4.Qxd4#
              • 3...Rd5
                • 4.Qe3#
              • 3...Bd5
                • 4.Qxd4#
      • 1...Be6
        • 2.Sc4+
          • 2...Bxc4
            • 3.Rxg5+
              • 3...Sf5
                • 4.Rxf5#
        • 2.Sf7+
          • 2...Bxf7
            • 3.Rxg5+
              • 3...Sf5
                • 4.Rxf5#
      • 1...Sf5
        • 2.c4
          • threat
            • 3.Sf7#
            • 3.Re6#
            • 3.Qe6#
          • 2...Sxe3
            • 3.Qe6+
              • 3...Kd4
                • 4.Qxe3#
              • 3...Kf4
                • 4.Qxe3#
                • 4.fxe3#

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