MESON Chess Problem Database

Problem Display
PID: 273773 (3Qb1n1/K1n3R1/p3p2p/1p5k/3B4/1pp2P2/8/q7 w - - 0 1)

Alexander, Frederick Forrest Lawrie

The Problemist, 1932

3Qb1n1/K1n3R1/p3p2p/1p5k/3B4/1pp2P2/8/q7

#4

5 + 11

SOLUTION

  • SOUND
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qh4#
      • 1...Qh1
        • 2.Qd4
          • threat
            • 3.Qe5#
            • 3.Qg4#
          • 2...Qh3
            • 3.Qg4+
              • 3...Qxg4
                • 4.fxg4#
      • 1...Qa4
        • 2.Qd1
          • threat
            • 3.f4#
          • 2...Qd4+
            • 3.Qxd4
              • threat
                • 4.Qe5#
                • 4.Qg4#
                • 4.Qh4#
          • 2...Qa1
            • 3.Qd4
              • threat
                • 4.Qe5#
                • 4.Qg4#
                • 4.Qh4#
          • 2...Qc4
            • 3.Qh1+
              • 3...Qh4
                • 4.Qxh4#
            • 3.f4+
              • 3...Qe2
                • 4.Qxe2#
                • 4.Qh1#
          • 2...Qf4
            • 3.Qh1+
              • 3...Qh2
                • 4.Qxh2#
              • 3...Qh4
                • 4.Qxh4#
          • 2...Qh4
            • 3.f4+
              • 3...Qg4
                • 4.Qxg4#
          • 2...Bc6
            • 3.Qh1+
              • 3...Qh4
                • 4.Qxh4#
            • 3.f4+
              • 3...Bf3
                • 4.Qxf3#
          • 2...Sf6
            • 3.Qh1+
              • 3...Qh4
                • 4.Qxh4#
            • 3.f4+
              • 3...Sg4
                • 4.Qxg4#
          • 2...b2
            • 3.Qh1+
              • 3...Qh4
                • 4.Qxh4#
          • 2...c2
            • 3.Qh1+
              • 3...Qh4
                • 4.Qxh4#
        • 2.f4
          • threat
            • 3.Qh4#
            • 3.Qd1#
          • 2...Qd4+
            • 3.Qxd4
              • threat
                • 4.Qe5#
                • 4.Qd1#
          • 2...Qxf4
            • 3.Qd1+
              • 3...Qf3
                • 4.Qxf3#
              • 3...Qg4
                • 4.Qxg4#
          • 2...Sf6
            • 3.Qd1+
              • 3...Sg4
                • 4.Qxg4#
      • 1...Se7
        • 2.Qxe7
          • threat
            • 3.Qh4#
          • 2...Qh1
            • 3.Rg5+
              • 3...hxg5
                • 4.Qh7#
          • 2...Qa4
            • 3.Rg5+
              • 3...hxg5
                • 4.Qh7#

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