MESON Chess Problem Database

Problem Display
PID: 236175 (8/3P3K/8/1Q6/8/k1r3p1/2p3P1/2N5 w - - 0 1)

Zepler, Erich Ernest

Parallele 50, 1948

8/3P3K/8/1Q6/8/k1r3p1/2p3P1/2N5

#4

5 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qb6!
      • threat
        • 2.d8Q
          • threat
            • 3.Qa8#
          • 2...Rc7+
            • 3.Qdxc7
              • 3...Ka4
                • 4.Qa5#
                • 4.Qb3#
                • 4.Qca7#
      • 1...Ka4
        • 2.d8Q
          • threat
            • 3.Qa5#
            • 3.Qa8#
          • 2...Rc7+
            • 3.Qdxc7
              • 3...Ka3
                • 4.Qb3#
                • 4.Qca7#
        • 2.d8B
          • threat
            • 3.Qa5#
          • 2...Rc7+
            • 3.Bxc7
              • 3...Ka3
                • 4.Qb3#
          • 2...Ka3
            • 3.Be7+
              • 3...Ka4
                • 4.Qb4#
                • 4.Qa6#
              • 3...Rc5
                • 4.Qb3#
      • 1...Rd3
        • 2.d8R
          • threat
            • 3.Ra8#
          • 2...Rd7+
            • 3.Rxd7
              • 3...Ka4
                • 4.Ra7#
      • 1...Re3
        • 2.d8Q
          • threat
            • 3.Qa8#
          • 2...Re7+
            • 3.Qxe7+
              • 3...Ka4
                • 4.Qeb4#
                • 4.Qbb4#
                • 4.Qa6#
                • 4.Qea7#
        • 2.d8B
          • 2...Re7+
            • 3.Bxe7+
              • 3...Ka4
                • 4.Qb4#
                • 4.Qa6#
          • 2...Rc3
            • 3.Be7+
              • 3...Ka4
                • 4.Qb4#
                • 4.Qa6#
              • 3...Rc5
                • 4.Qb3#
          • 2...Rd3
            • 3.Be7+
              • 3...Ka4
                • 4.Qb4#
                • 4.Qa6#
              • 3...Rd6
                • 4.Qb3#
          • 2...Rf3
            • 3.Be7+
              • 3...Ka4
                • 4.Qb4#
                • 4.Qa6#
            • 3.gxf3
              • threat
                • 4.Qb3#
              • 3...Ka4
                • 4.Qa5#
                • 4.Qb3#
      • 1...Rf3
        • 2.gxf3
          • threat
            • 3.Qb3#
          • 2...Ka4
            • 3.d8Q
              • threat
                • 4.Qa5#
                • 4.Qb3#
                • 4.Qa8#
              • 3...Ka3
                • 4.Qb3#
                • 4.Qa8#
            • 3.d8B
              • threat
                • 4.Qa5#
                • 4.Qb3#
              • 3...Ka3
                • 4.Qb3#
            • 3.d8R
              • threat
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
                • 4.Qb3#

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