MESON Chess Problem Database

Problem Display
PID: 209055 (5b2/K2p4/Q2B1P1p/3k4/1P1N4/1bP5/P7/8 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1920

(First published on Sun May 16 1920)

5b2/K2p4/Q2B1P1p/3k4/1P1N4/1bP5/P7/8

#3

8 + 5

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5+?
      • 1...Kxd6
        • 2.Qc5#
      • 1...Ke4!
    • 1.Qb7+?
      • 1...Kxd6
        • 2.Qb5
          • threat
            • 3.Qc5#
          • 2...Kc7
            • 3.Qb8#
          • 2...Bd5
            • 3.Qb8#
      • 1...Kc4!
  • Keys
    • 1.Qe2!
      • threat
        • 2.c4+
          • 2...Kxd4
            • 3.Be5#
          • 2...Kxd6
            • 3.Qh2#
          • 2...Bxc4
            • 3.Qe5#
      • 1...Kxd6
        • 2.Qb5
          • threat
            • 3.Qc5#
          • 2...Kc7
            • 3.Qb8#
          • 2...Bd5
            • 3.Qb8#
      • 1...Bxa2
        • 2.c4+
          • 2...Kxd4
            • 3.Be5#
          • 2...Kxd6
            • 3.Qh2#
          • 2...Bxc4
            • 3.Qe5#
      • 1...Bxd6
        • 2.Qf3+
          • 2...Kc4
            • 3.axb3#
          • 2...Ke5
            • 3.Qf5#
      • 1...Bd1
        • 2.c4+
          • 2...Kxd4
            • 3.Be5#
          • 2...Kxd6
            • 3.Qh2#
      • 1...Bc2
        • 2.c4+
          • 2...Kxd4
            • 3.Be5#
          • 2...Kxd6
            • 3.Qh2#
      • 1...Ba4
        • 2.c4+
          • 2...Kxd4
            • 3.Be5#
          • 2...Kxd6
            • 3.Qh2#

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