Problem Display
PID: 71503 (8/7p/Q7/8/5N2/2p5/K2p3P/2k5 w - - 0 1)

Bull, Cecil Alfred Lucas

The Field, 1912

(First published on Sat Jan 6 1912)

8/7p/Q7/8/5N2/2p5/K2p3P/2k5

#3

4 + 4


133 The Problemist Supplement 2007
15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kd1
      • 2.Kb3
        • threat
          • 3.Qf1#
          • 3.Qa1#
        • 2...Kc1
          • 3.Qa1#
        • 2...Ke1
          • 3.Qe2#
      • 2.Qf1+
        • 2...Kc2
          • 3.Qb1#
      • 2.Qd3
        • threat
          • 3.Qb1#
        • 2...Kc1
          • 3.Qb1#
        • 2...Ke1
          • 3.Qe2#
        • 2...c2
          • 3.Qf1#
      • 2.Qb5
        • threat
          • 3.Qb1#
        • 2...Kc1
          • 3.Qb1#
        • 2...Ke1
          • 3.Qe2#
        • 2...Kc2
          • 3.Qb1#
        • 2...c2
          • 3.Qf1#
      • 2.Qb6
        • threat
          • 3.Qb1#
        • 2...Kc1
          • 3.Qb1#
        • 2...Ke1
          • 3.Qg1#
        • 2...Kc2
          • 3.Qb1#
        • 2...c2
          • 3.Qg1#
    • 1...Kc2
      • 2.Qd3+
        • 2...Kc1
          • 3.Qb1#
        • 2...Kd1
          • 3.Qb1#
      • 2.Qa4+
        • 2...Kc1
          • 3.Se2#
          • 3.Sd3#
    • 1...d1S
      • 2.Qd3
        • threat
          • 3.Se2#
  • Tries
    • 1.Qa3+?
      • 1...Kc2
        • 2.Qb3+
          • 2...Kc1
            • 3.Se2#
            • 3.Sd3#
            • 3.Qb1#
        • 2.Qa4+
          • 2...Kc1
            • 3.Se2#
            • 3.Sd3#
      • 1...Kd1!
  • Keys
    • 1.Qh6!
      • 1...Kd1
        • 2.Qb6
          • threat
            • 3.Qb1#
          • 2...Kc1
            • 3.Qb1#
          • 2...Ke1
            • 3.Qg1#
          • 2...Kc2
            • 3.Qb1#
          • 2...c2
            • 3.Qg1#
      • 1...Kc2
        • 2.Qxh7+
          • 2...Kc1
            • 3.Qb1#
          • 2...Kd1
            • 3.Qb1#
      • 1...d1Q
        • 2.Sd3+
          • 2...Kc2
            • 3.Sb4#
      • 1...d1S
        • 2.Sd3+
          • 2...Kc2
            • 3.Se1#
            • 3.Sb4#
      • 1...d1B
        • 2.Sg2+
          • 2...Kc2
            • 3.Se1#
        • 2.Sd3+
          • 2...Kc2
            • 3.Se1#
            • 3.Sb4#
        • 2.Sd5+
          • 2...Kc2
            • 3.Sb4#
      • 1...d1R
        • 2.Sd3+
          • 2...Kc2
            • 3.Sb4#
      • 1...c2
        • 2.Sd3+
          • 2...Kd1
            • 3.Qh5#

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