MESON Chess Problem Database

Problem Display
PID: 153192 (8/1R3K2/N7/1p6/2P1p3/1p6/4Q3/k7 w - - 0 1)

Harley, Brian

The Observer, 1937

(First published on Sun Sep 19 1937)

8/1R3K2/N7/1p6/2P1p3/1p6/4Q3/k7

#3

5 + 4

15290 Harley Scrapbook 2014
15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rd7?
      • threat
        • 2.Rd1#
      • 1...Kb1
        • 2.Rd1#
      • 1...b2!
    • 1.Qc2?
      • threat
        • 2.Qc1+
          • 2...Ka2
            • 3.Sb4#
      • 1...b2
        • 2.Rxb5
          • threat
            • 3.Ra5#
            • 3.Qxb2#
          • 2...Ka2
            • 3.Ra5#
            • 3.Qxb2#
          • 2...b1Q
            • 3.Rxb1#
            • 3.Qxb1#
          • 2...b1S
            • 3.Rxb1#
            • 3.Qxb1#
            • 3.Qb2#
          • 2...b1B
            • 3.Rxb1#
            • 3.Qxb1#
            • 3.Qb2#
      • 1...b4
        • 2.Qc1+
          • 2...Ka2
            • 3.Sxb4#
      • 1...bxc2!
  • Keys
    • 1.Sb4!
      • 1...Kb1
        • 2.Rd7
          • threat
            • 3.Rd1#
          • 2...Ka1
            • 3.Rd1#
          • 2...Kc1
            • 3.Rd1#
      • 1...bxc4
        • 2.Qa2+
          • 2...bxa2
            • 3.Sc2#
      • 1...b2
        • 2.Ra7+
          • 2...Kb1
            • 3.Qd1#
            • 3.Qf1#
            • 3.Qe1#
            • 3.Qc2#
      • 1...e3
        • 2.Sd3
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...b2
            • 3.Qxb2#

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