MESON Chess Problem Database

Problem Display
PID: 184980 (3Q2B1/8/b1p4B/1P2P3/4k2K/5p2/4pp2/b7 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1929

(First published on Sun Jul 21 1929)

3Q2B1/8/b1p4B/1P2P3/4k2K/5p2/4pp2/b7

#3

6 + 7

15239 Valois Notebooks 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qe7+
        • 2...Kd4
          • 3.Qe3#
        • 2...Kf5
          • 3.Bh7#
          • 3.Qe6#
    • 1...Kf5
      • 2.Qd6
        • threat
          • 3.Bh7#
        • 2...Ke4
          • 3.Bh7#
    • 1...Bxe5
      • 2.Bh7#
    • 1...Bxb5
      • 2.Qd6
        • threat
          • 3.Bh7#
        • 2...Kf5
          • 3.Bh7#
    • 1...cxb5
      • 2.Qd5+
        • 2...Kf5
          • 3.Bh7#
    • 1...c5
      • 2.Qd5+
        • 2...Kf5
          • 3.Bh7#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qf4+
          • 2...Kd3
            • 3.Qc4#
      • 1...Kf5
        • 2.Qf4+
          • 2...Kg6
            • 3.Qg5#
            • 3.Qf6#
        • 2.Qd6
          • threat
            • 3.Bh7#
          • 2...Ke4
            • 3.Bh7#
      • 1...Bxb5
        • 2.Qd6
          • threat
            • 3.Bh7#
          • 2...Kf5
            • 3.Bh7#
      • 1...cxb5
        • 2.Qd5+
          • 2...Kf5
            • 3.Bh7#
      • 1...Bc3
        • 2.Qf4+
          • 2...Kd3
            • 3.Bh7#
      • 1...Bd4!
    • 1.Qd5+?
      • 1...Kf5
        • 2.Bh7#
      • 1...cxd5!
    • 1.Qd6?
      • threat
        • 2.Bh7#
      • 1...Kf5
        • 2.Bh7#
      • 1...Bc8!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qf4+
          • 2...Kd3
            • 3.Qc4#
      • 1...Kd3
        • 2.Qxf3+
          • 2...Kc2
            • 3.Qb3#
          • 2...Kd4
            • 3.Qe3#
      • 1...Kd4
        • 2.Qd6+
          • 2...Kc3
            • 3.Qd2#
          • 2...Ke4
            • 3.Bh7#
      • 1...Bxe5
        • 2.Qxc6+
          • 2...Kd3
            • 3.Qc4#
          • 2...Kd4
            • 3.Qc4#
          • 2...Kf5
            • 3.Bh7#
      • 1...Bxb5
        • 2.Qd6
          • threat
            • 3.Bh7#
          • 2...Kf5
            • 3.Bh7#
      • 1...cxb5
        • 2.Qxf3+
          • 2...Kxf3
            • 3.Bd5#
          • 2...Kd4
            • 3.Qe3#
          • 2...Kxe5
            • 3.Qf4#
      • 1...Bc3
        • 2.Qf4+
          • 2...Kd3
            • 3.Bh7#
      • 1...Bd4
        • 2.Qg6+
          • 2...Kxe5
            • 3.Qe6#

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