MESON Chess Problem Database

Problem Display
PID: 230305 (8/3p4/2k5/K1Np4/p7/4Q3/8/8 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Zadachi i Etyudi, 2000

8/3p4/2k5/K1Np4/p7/4Q3/8/8

#4

3 + 4

SOLUTION

  • SOUND
  • Keys
    • 1.Qd4!
      • threat
        • 2.Sa6
          • threat
            • 3.Qb6#
          • 2...Kb7
            • 3.Qb2+
              • 3...Kc6
                • 4.Qb6#
              • 3...Ka7
                • 4.Qb8#
              • 3...Ka8
                • 4.Qb8#
              • 3...Kc8
                • 4.Qb8#
            • 3.Qb6+
              • 3...Ka8
                • 4.Sc7#
                • 4.Qb8#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qb8#
            • 3.Qb4+
              • 3...Kc6
                • 4.Qb6#
              • 3...Ka7
                • 4.Qb8#
              • 3...Ka8
                • 4.Qb8#
              • 3...Kc8
                • 4.Qb8#
          • 2...d6
            • 3.Qa7
              • threat
                • 4.Sb4#
                • 4.Sb8#
                • 4.Qc7#
      • 1...Kd6
        • 2.Se4+
          • 2...Kc7
            • 3.Qb6+
              • 3...Kc8
                • 4.Sd6#
          • 2...Ke7
            • 3.Qf6+
              • 3...Ke8
                • 4.Sd6#
      • 1...Kc7
        • 2.Qxd5
          • threat
            • 3.Qxd7+
              • 3...Kb8
                • 4.Qb7#
          • 2...Kc8
            • 3.Qb7+
              • 3...Kd8
                • 4.Qxd7#
            • 3.Qxd7+
              • 3...Kb8
                • 4.Qb7#
            • 3.Kb6
              • threat
                • 4.Qa8#
                • 4.Qg8#
              • 3...Kb8
                • 4.Qb7#
                • 4.Qg8#
              • 3...Kd8
                • 4.Qxd7#
          • 2...d6
            • 3.Qb7+
              • 3...Kd8
                • 4.Qd7#
      • 1...a3
        • 2.Sa6
          • threat
            • 3.Qb6#
          • 2...Kb7
            • 3.Qb6+
              • 3...Ka8
                • 4.Sc7#
                • 4.Qb8#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qb8#
            • 3.Qb4+
              • 3...Kc6
                • 4.Qb6#
              • 3...Ka7
                • 4.Qb8#
              • 3...Ka8
                • 4.Qb8#
              • 3...Kc8
                • 4.Qb8#
          • 2...d6
            • 3.Qa7
              • threat
                • 4.Sb4#
                • 4.Sb8#
                • 4.Qc7#
      • 1...d6
        • 2.Qxa4+
          • 2...Kxc5
            • 3.Ka6
              • 3...d4
                • 4.Qb5#
          • 2...Kc7
            • 3.Qd7+
              • 3...Kb8
                • 4.Qb7#

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