Problem Display
PID: 197969 (5n2/2p5/1p2pNb1/1Pk1P1pp/1R2pP2/6p1/4B3/4BnK1 w - - 0 1)

Goumondy, Claude

The Problemist, 1981

5n2/2p5/1p2pNb1/1Pk1P1pp/1R2pP2/6p1/4B3/4BnK1

#4

8 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Ra4!
      • threat
        • 2.Bc3
          • threat
            • 3.Bd4#
      • 1...Be8
        • 2.Sxe4+
          • 2...Kd5
            • 3.Sc3+
              • 3...Kc5
                • 4.Rc4#
      • 1...Sd2
        • 2.Bxd2
          • threat
            • 3.Be3#
          • 2...gxf4
            • 3.Bxf4
              • threat
                • 4.Be3#
              • 3...e3
                • 4.Bxe3#
            • 3.Bc1
              • threat
                • 4.Ba3#
            • 3.Bc3
              • threat
                • 4.Bd4#
      • 1...Sh2
        • 2.Bb4+
          • 2...Kd4
            • 3.Bd2+
              • 3...Kc5
                • 4.Be3#
      • 1...Se3
        • 2.Bb4+
          • 2...Kd4
            • 3.Bd2+
              • 3...Kc5
                • 4.Bxe3#
              • 3...Sc4
                • 4.Rxc4#
      • 1...Sd7
        • 2.Sxd7+
          • 2...Kd5
            • 3.Bc3
              • threat
                • 4.Bc4#
                • 4.Rd4#
      • 1...Sh7
        • 2.Sd7+
          • 2...Kd5
            • 3.Bc3
              • threat
                • 4.Bc4#
                • 4.Rd4#
      • 1...e3
        • 2.Bc3
          • threat
            • 3.Bd4#
          • 2...Bd3
            • 3.Bxd3
              • threat
                • 4.Bd4#
      • 1...c6
        • 2.Rc4+
          • 2...Kxb5
            • 3.Rxe4+
              • 3...Kc5
                • 4.Bb4#

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