Problem Display
PID: 269647 (4B3/1Q2K3/5P2/4P3/2pk4/7p/7P/5N2 w - - 0 1)

Petrasinovic, Petrasin

Problemist Ukraini, 2012

4B3/1Q2K3/5P2/4P3/2pk4/7p/7P/5N2

#4

7 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Ba4!
      • threat
        • 2.Kd6
          • threat
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd2#
            • 3.Qf3
              • 3...c3
                • 4.Qd5#
          • 2...Kc3
            • 3.Kc5
              • 3...Kd3
                • 4.Qf3#
            • 3.Qb6
              • 3...Kd3
                • 4.Qe3#
          • 2...Kd3
            • 3.Qf3+
              • 3...Kd4
                • 4.Qe3#
      • 1...Kd3
        • 2.Qf3+
          • 2...Kd4
            • 3.Kd6
              • 3...c3
                • 4.Qd5#
      • 1...Kc5
        • 2.Ke6
          • 2...Kd4
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd2#
          • 2...c3
            • 3.Qb5+
              • 3...Kd4
                • 4.Qd5#
      • 1...Kxe5
        • 2.Qf3
          • threat
            • 3.Bc6
              • threat
                • 4.Qe4#
              • 3...Kd4
                • 4.Qe3#
          • 2...Kd4
            • 3.Kd6
              • 3...c3
                • 4.Qd5#
          • 2...c3
            • 3.Bc6
              • threat
                • 4.Qe4#
              • 3...Kd4
                • 4.Qd5#
      • 1...c3
        • 2.Kd6
          • threat
            • 3.Qd5#
          • 2...Kd3
            • 3.Qf3+
              • 3...Kc4
                • 4.Qe4#
              • 3...Kd4
                • 4.Qd5#
          • 2...c2
            • 3.Qb4+
              • 3...Kd3
                • 4.Bb5#

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