Problem Display
PID: 270910 (8/8/2Nk1N2/8/7P/5Q2/8/4KB2 w - - 0 1)

Andrade, Barry Jack da Costa

The Observer, 1959

(First published on Sun Nov 15 1959)

8/8/2Nk1N2/8/7P/5Q2/8/4KB2

#3

6 + 1


17397 Ling Notebooks 2023
3713 Snap 2023

SOLUTION


  • SOUND
  • Tries
    • 1.Se8+?
      • 1...Kc5
        • 2.Qe2
          • threat
            • 3.Qb5#
          • 2...Kd5
            • 3.Qc4#
          • 2...Kb6
            • 3.Qb5#
          • 2...Kxc6
            • 3.Qb5#
        • 2.Qh5+
          • 2...Kb6
            • 3.Qb5#
          • 2...Kxc6
            • 3.Qb5#
        • 2.Qb3
          • 2...Kxc6
            • 3.Qb5#
        • 2.Qd3
          • threat
            • 3.Qb5#
          • 2...Kb6
            • 3.Qb5#
          • 2...Kxc6
            • 3.Qb5#
        • 2.Qf5+
          • 2...Kb6
            • 3.Qb5#
          • 2...Kxc6
            • 3.Qb5#
      • 1...Kd7!
  • Keys
    • 1.Sd8!
      • 1...Kc5
        • 2.Qa3+
          • 2...Kd4
            • 3.Sc6#
          • 2...Kb6
            • 3.Sd5#
      • 1...Ke5
        • 2.Qg3+
          • 2...Kd4
            • 3.Se6#
          • 2...Kf5
            • 3.Qg5#
          • 2...Kxf6
            • 3.Qg5#
      • 1...Kc7
        • 2.Qc6+
          • 2...Kb8
            • 3.Qb7#
          • 2...Kxd8
            • 3.Qd7#
      • 1...Ke7
        • 2.Qd5
          • 2...Kxf6
            • 3.Qg5#
          • 2...Kf8
            • 3.Qf7#

Anticipated by 39960(1953)

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