Problem Display
PID: 135717 (4Q3/8/3N4/2ppP3/3k4/8/8/1B2K3 w - - 0 1)

Petrasinovic, Petrasin

4th Comm., The Problemist, 2010

4Q3/8/3N4/2ppP3/3k4/8/8/1B2K3

#4

5 + 3


56 The Problemist 2014

SOLUTION


  • SOUND
  • Keys
    • 1.Qc6!
      • 1...Kc3
        • 2.Qb5
          • 2...Kd4
            • 3.Qb2+
              • 3...Ke3
                • 4.Qf2#
          • 2...c4
            • 3.Qb6
              • 3...d4
                • 4.Se4#
      • 1...Ke3
        • 2.Sf5+
          • 2...Kf3
            • 3.Qg6
              • threat
                • 4.Qg3#
              • 3...Kf4
                • 4.Qg3#
          • 2...Kf4
            • 3.Qg6
              • threat
                • 4.Qg3#
              • 3...Kf3
                • 4.Qg3#
              • 3...Kxe5
                • 4.Qd6#
      • 1...Kxe5
        • 2.Sf5
          • threat
            • 3.Qd6#
          • 2...Kf4
            • 3.Qg6
              • threat
                • 4.Qg3#
              • 3...Kf3
                • 4.Qg3#
              • 3...Ke5
                • 4.Qd6#
      • 1...c4
        • 2.Sb5+
          • 2...Ke3
            • 3.Qf6
              • threat
                • 4.Qf2#

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