Problem Display
PID: 201035 (2b2K2/3p3p/2kP3Q/1R1p4/2P1p3/Pp1p1pn1/5p2/4r3 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1949

(First published on Sun Apr 24 1949)

2b2K2/3p3p/2kP3Q/1R1p4/2P1p3/Pp1p1pn1/5p2/4r3

#3

6 + 12


15239 Valois Notebooks 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Rb6#
        • 2.Qc5#
        • 2.Qb6#
      • 1...Kxd6
        • 2.Qh6+
          • 2...Ke5
            • 3.Rxd5#
          • 2...Kc7
            • 3.Qb6#
      • 1...d4
        • 2.Qxd4
          • threat
            • 3.Rb6#
            • 3.Qc5#
            • 3.Qb6#
            • 3.Qd5#
      • 1...Rxe3!
    • 1.Qg5?
      • threat
        • 2.Qxd5#
      • 1...Kxd6
        • 2.Qf6+
          • 2...Kc7
            • 3.Qb6#
        • 2.Qh6+
          • 2...Ke5
            • 3.Rxd5#
          • 2...Kc7
            • 3.Qb6#
      • 1...Sf5!
    • 1.Qe6?
      • threat
        • 2.Qxd5#
      • 1...dxc4
        • 2.Qd5#
      • 1...d4
        • 2.Qd5#
      • 1...dxe6!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qb4
          • threat
            • 3.Rb6#
            • 3.Qc5#
            • 3.cxd5#
      • 1...Kxd6
        • 2.Qh6+
          • 2...Ke5
            • 3.Rxd5#
          • 2...Kc7
            • 3.Qb6#
      • 1...dxc4
        • 2.Qb4
          • threat
            • 3.Qc5#
        • 2.Qa5
          • threat
            • 3.Rb6#
            • 3.Qb6#
          • 2...Kxd6
            • 3.Qb6#
      • 1...Ba6
        • 2.cxd5+
          • 2...Kxb5
            • 3.Qb4#
          • 2...Kxd6
            • 3.Qf4#
      • 1...d4
        • 2.Qb4
          • threat
            • 3.Rb6#
            • 3.Qc5#
        • 2.Qa5
          • threat
            • 3.Rb6#
            • 3.Qb6#
            • 3.Qc7#
          • 2...Kxd6
            • 3.Qb6#

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