MESON Chess Problem Database

Problem Display
PID: 257080 (4n1n1/K1p5/P1Pb1p2/2p1p3/2P5/4B3/kp1N4/1N6 w - - 0 1)

Genenncher, Frank

Schach, 1975

4n1n1/K1p5/P1Pb1p2/2p1p3/2P5/4B3/kp1N4/1N6

#4

7 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Keys
    • 1.Kb7!
      • threat
        • 2.a7
          • threat
            • 3.a8Q#
            • 3.a8R#
          • 2...Ka1
            • 3.a8Q#
            • 3.a8R#
      • 1...Be7
        • 2.Kb8
          • threat
            • 3.a7
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka1
                • 4.a8Q#
                • 4.a8R#
          • 2...Ka1
            • 3.a7
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka2
                • 4.a8Q#
                • 4.a8R#
          • 2...Sd6
            • 3.Sc3+
              • 3...Ka1
                • 4.Sb3#
              • 3...Ka3
                • 4.Bxc5#
      • 1...Bf8
        • 2.Kb8
          • threat
            • 3.a7
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka1
                • 4.a8Q#
                • 4.a8R#
          • 2...Ka1
            • 3.a7
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka2
                • 4.a8Q#
                • 4.a8R#
          • 2...Sd6
            • 3.Sc3+
              • 3...Ka1
                • 4.Sb3#
              • 3...Ka3
                • 4.Bxc5#
          • 2...Se7
            • 3.Sc3+
              • 3...Ka1
                • 4.Sb3#
              • 3...Ka3
                • 4.Bxc5#
      • 1...Se7
        • 2.a7
          • threat
            • 3.a8Q#
            • 3.a8R#
          • 2...Sxc6
            • 3.a8Q+
              • 3...Sa5+
                • 4.Qxa5#
              • 3...Sa7
                • 4.Qxa7#
            • 3.a8R+
              • 3...Sa5+
                • 4.Rxa5#
              • 3...Sa7
                • 4.Rxa7#
            • 3.Kxc6
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka1
                • 4.a8Q#
                • 4.a8R#
          • 2...Sc8
            • 3.a8Q+
              • 3...Sa7
                • 4.Qxa7#
            • 3.a8R+
              • 3...Sa7
                • 4.Rxa7#
            • 3.Kxc8
              • threat
                • 4.a8Q#
                • 4.a8R#
              • 3...Ka1
                • 4.a8Q#
                • 4.a8R#

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