MESON Chess Problem Database

Problem Display
PID: 216722 (8/2p1p3/P3Bk1p/7K/3P4/Q2P4/8/8 w - - 0 1)

Decker, Adolfph L

Columbia Chess Chronicle, 1888

8/2p1p3/P3Bk1p/7K/3P4/Q2P4/8/8

#4

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Qa2!
      • threat
        • 2.Kxh6
          • threat
            • 3.Bh3
              • threat
                • 4.Qe6#
                • 4.Qf2#
              • 3...e6
                • 4.Qxe6#
            • 3.Bg4
              • threat
                • 4.Qe6#
                • 4.Qf2#
              • 3...e6
                • 4.Qxe6#
            • 3.Bd7
              • threat
                • 4.Qe6#
                • 4.Qf2#
              • 3...e6
                • 4.Qxe6#
            • 3.Bc8
              • threat
                • 4.Qe6#
                • 4.Qf2#
              • 3...e6
                • 4.Qxe6#
            • 3.Qd5
              • threat
                • 4.Qe5#
                • 4.Qf5#
            • 3.Qe2
              • threat
                • 4.Qe5#
        • 2.Qd5
          • threat
            • 3.Qe5#
          • 2...Kg7
            • 3.Qg2+
              • 3...Kf6
                • 4.Qg6#
              • 3...Kh7
                • 4.Qg8#
              • 3...Kf8
                • 4.Qg8#
              • 3...Kh8
                • 4.Qg8#
        • 2.Qe2
          • threat
            • 3.Qe5#
          • 2...Kg7
            • 3.Qg4+
              • 3...Kf6
                • 4.Qg6#
              • 3...Kh7
                • 4.Qg8#
              • 3...Kf8
                • 4.Qg8#
              • 3...Kh8
                • 4.Qg8#
            • 3.Qg2+
              • 3...Kf6
                • 4.Qg6#
              • 3...Kh7
                • 4.Qg8#
              • 3...Kf8
                • 4.Qg8#
              • 3...Kh8
                • 4.Qg8#
      • 1...c5
        • 2.d5
          • threat
            • 3.Qa1#
            • 3.Qb2#
          • 2...Ke5
            • 3.Qc4
              • 3...Kd6
                • 4.Qf4#
              • 3...Kf6
                • 4.Qc3#
          • 2...Kg7
            • 3.Qg2+
              • 3...Kf6
                • 4.Qb2#
              • 3...Kh7
                • 4.Qg8#
              • 3...Kf8
                • 4.Qg8#
              • 3...Kh8
                • 4.Qg8#
          • 2...c4
            • 3.Qa1+
              • 3...c3
                • 4.Qxc3#
            • 3.Qb2+
              • 3...c3
                • 4.Qxc3#

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