MESON Chess Problem Database

Problem Display
PID: 79838 (3Q4/8/8/8/2n5/1K6/8/2k5 w - - 0 1)

Ahlheim, Karl-Heinz

Die Schwalbe, 1969

3Q4/8/8/8/2n5/1K6/8/2k5

#4

2 + 2

SOLUTION

  • SOUND
  • Keys
    • 1.Kc3!
      • threat
        • 2.Qd3
          • threat
            • 3.Qf1#
            • 3.Qc2#
          • 2...Se3
            • 3.Qd2+
              • 3...Kb1
                • 4.Qb2#
            • 3.Kb3
              • 3...Sc2
                • 4.Qxc2#
              • 3...Sd1
                • 4.Qc2#
              • 3...Sf1
                • 4.Qc2#
              • 3...Sg2
                • 4.Qc2#
              • 3...Sc4
                • 4.Qc2#
              • 3...Sg4
                • 4.Qc2#
              • 3...Sd5
                • 4.Qc2#
              • 3...Sf5
                • 4.Qc2#
      • 1...Kb1
        • 2.Qd1+
          • 2...Ka2
            • 3.Qc1
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sd2
                • 4.Qb2#
              • 3...Sa3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
              • 3...Sa5
                • 4.Qb2#
              • 3...Se5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#
              • 3...Sd6
                • 4.Qb2#
      • 1...Sd6
        • 2.Qg5+
          • 2...Kb1
            • 3.Kb3
              • threat
                • 4.Qg1#
              • 3...Ka1
                • 4.Qc1#
                • 4.Qg1#
        • 2.Qxd6
          • 2...Kb1
            • 3.Qb6+
              • 3...Ka1
                • 4.Qb2#
              • 3...Kc1
                • 4.Qg1#
              • 3...Ka2
                • 4.Qb2#
            • 3.Qh2
              • threat
                • 4.Qb2#
              • 3...Ka1
                • 4.Qb2#
              • 3...Kc1
                • 4.Qg1#
                • 4.Qh1#
                • 4.Qc2#
            • 3.Qd2
              • 3...Ka1
                • 4.Qb2#
            • 3.Qa6
              • 3...Kc1
                • 4.Qf1#
                • 4.Qa1#

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