MESON Chess Problem Database

Problem Display
PID: 20360 (4k3/4p3/4P3/4n3/4K3/4R3/4R3/4n3 w - - 0 1)

Hartong, Jan

Koerstkaart, 1969

4k3/4p3/4P3/4n3/4K3/4R3/4R3/4n3

#4

4 + 4

SOLUTION

  • SOUND
  • Keys
    • 1.Ra2!
      • threat
        • 2.Ra8#
      • 1...Kd8
        • 2.Rc3
          • threat
            • 3.Ra8#
          • 2...Sc4
            • 3.Rxc4
              • threat
                • 4.Ra8#
              • 3...Ke8
                • 4.Ra8#
                • 4.Rc8#
          • 2...Sc6
            • 3.Rxc6
              • threat
                • 4.Ra8#
              • 3...Ke8
                • 4.Ra8#
                • 4.Rc8#
          • 2...Sd7
            • 3.Ra8+
              • 3...Sb8
                • 4.Rxb8#
      • 1...Kf8
        • 2.Rg3
          • threat
            • 3.Ra8#
          • 2...Sg4
            • 3.Rxg4
              • threat
                • 4.Ra8#
              • 3...Ke8
                • 4.Ra8#
                • 4.Rg8#
          • 2...Sg6
            • 3.Rxg6
              • threat
                • 4.Ra8#
              • 3...Ke8
                • 4.Ra8#
                • 4.Rg8#
          • 2...Sc6
            • 3.Ra8+
              • 3...Sb8
                • 4.Rxb8#
              • 3...Sd8
                • 4.Rxd8#
            • 3.Rh2
              • threat
                • 4.Rh8#
              • 3...Ke8
                • 4.Rh8#
                • 4.Rg8#
          • 2...Sd7
            • 3.Ra8+
              • 3...Sb8
                • 4.Rxb8#
          • 2...Sf7
            • 3.Ra8+
              • 3...Sd8
                • 4.Rxd8#
      • 1...Sc6
        • 2.Ra8+
          • 2...Sd8
            • 3.Rg3
              • threat
                • 4.Rg8#
              • 3...Kf8
                • 4.Rxd8#
      • 1...Sf7
        • 2.Ra8+
          • 2...Sd8
            • 3.Rg3
              • threat
                • 4.Rg8#
              • 3...Kf8
                • 4.Rxd8#

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