MESON Chess Problem Database

Problem Display
PID: 199421 (8/K2B4/1pp5/b1Pk2r1/1p2R1p1/4p3/3Pp1Q1/4r1n1 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1945

(First published on Sun Apr 29 1945)

8/K2B4/1pp5/b1Pk2r1/1p2R1p1/4p3/3Pp1Q1/4r1n1

#3

6 + 11

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Rf4+
        • 2...Kxc5
          • 3.Qxc6#
        • 2...Ke5
          • 3.Qe4#
  • Tries
    • 1.Rf4+?
      • 1...Kxc5
        • 2.Qxc6#
      • 1...Ke5
        • 2.Qe4#
      • 1...Sf3!
    • 1.Rxg4+?
      • 1...Sf3
        • 2.Qxf3+
          • 2...Kxc5
            • 3.Qxc6#
          • 2...Ke5
            • 3.d4#
      • 1...Ke5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxe3
          • threat
            • 3.Be6#
            • 3.Qd4#
          • 2...bxc5
            • 3.Qd3#
      • 1...Kxe4
        • 2.Qxe3+
          • 2...Kd5
            • 3.Be6#
      • 1...Kxc5
        • 2.Qc7
          • threat
            • 3.Qxc6#
          • 2...Kb5
            • 3.Qxc6#
          • 2...Kd5
            • 3.Qxc6#
          • 2...Rg6
            • 3.Qe5#
      • 1...exd2
        • 2.Qe3
          • threat
            • 3.Be6#
            • 3.Qd4#
          • 2...bxc5
            • 3.Qd3#
      • 1...bxc5
        • 2.Be6+
          • 2...Kxe4
            • 3.Qxe3#
      • 1...Sf3
        • 2.Qd6+
          • 2...Kxe4
            • 3.d3#
      • 1...b5
        • 2.Be6+
          • 2...Kxe4
            • 3.Qxe3#
          • 2...Kxc5
            • 3.d4#

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