MESON Chess Problem Database

Problem Display
PID: 204739 (b2K3b/2Np3P/4Pk2/1p5Q/8/n2P1pp1/N2P4/r7 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Shakhmatny Listok, 1926

b2K3b/2Np3P/4Pk2/1p5Q/8/n2P1pp1/N2P4/r7

#4

8 + 9

1099 WCSC 1984
5396 World Chess Solving Championship 1977-1996 1997
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Sb4!
      • threat
        • 2.Se8+
          • 2...Kxe6
            • 3.Qg4+
              • 3...Ke5
                • 4.d4#
              • 3...Kf7
                • 4.Qg8#
      • 1...Be4
        • 2.dxe4
          • threat
            • 3.Se8+
              • 3...Kxe6
                • 4.Qd5#
                • 4.Qf5#
            • 3.e7
              • threat
                • 4.e8S#
              • 3...Kg7
                • 4.Se8#
          • 2...Kg7
            • 3.Se8+
              • 3...Kf8
                • 4.Qf7#
                • 4.e7#
            • 3.Ke7
              • threat
                • 4.Se8#
            • 3.e7
              • threat
                • 4.Se8#
              • 3...Kf6
                • 4.e8S#
      • 1...Bg7
        • 2.Kxd7
          • threat
            • 3.Se8#
          • 2...Bc6+
            • 3.Sxc6
              • threat
                • 4.Sd5#
                • 4.Se8#
      • 1...Sc2
        • 2.Sba6
          • threat
            • 3.Se8+
              • 3...Kxe6
                • 4.Sc5#
                • 4.Sac7#
          • 2...Kg7
            • 3.Se8+
              • 3...Kf8
                • 4.Qf7#
                • 4.e7#
            • 3.Ke7
              • threat
                • 4.Se8#
            • 3.e7
              • threat
                • 4.Se8#
              • 3...Kf6
                • 4.e8S#
          • 2...Rxa6
            • 3.e7
              • threat
                • 4.e8S#
              • 3...Kg7
                • 4.Se8#
              • 3...Re6
                • 4.Se8#
          • 2...d6
            • 3.Se8+
              • 3...Kxe6
                • 4.Sac7#

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