Problem Display
PID: 269530 (4Q1b1/5pp1/8/1pNk4/1P2p3/4K1p1/6p1/3N2B1 w - - 0 1)

Balcomb, JF

Sunday Referee, 1930

(First published on Sun Dec 28 1930)

4Q1b1/5pp1/8/1pNk4/1P2p3/4K1p1/6p1/3N2B1

#3

6 + 8


15239 Valois Notebooks 2023

SOLUTION


  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxe4#
    • 1...f5
      • 2.Qd7+
        • 2...Kc4
          • 3.Qd4#
        • 2...Ke5
          • 3.Qd4#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Se3+
          • 2...Kd4
            • 3.Qe5#
          • 2...Kd6
            • 3.Qd7#
        • 2.Qd7+
          • 2...Kc4
            • 3.Qd4#
      • 1...e3
        • 2.Sxe3+
          • 2...Kd4
            • 3.Qe5#
          • 2...Kd6
            • 3.Qd7#
      • 1...f6
        • 2.Qd7+
          • 2...Kc4
            • 3.Qd4#
      • 1...g5+!
    • 1.Sc3+?
      • 1...Kd6
        • 2.Sxb5+
          • 2...Kd5
            • 3.Qxe4#
      • 1...Kc4!
    • 1.Qd7+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke5!
    • 1.Qd8+?
      • 1...Kc6
        • 2.Qd7+
          • 2...Kb6
            • 3.Qb7#
      • 1...Ke5!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qd7+
          • 2...Kc4
            • 3.Qd4#
          • 2...Ke5
            • 3.Sg4#
      • 1...Kc4
        • 2.Qxe4+
          • 2...Kc3
            • 3.Sd1#
      • 1...Kd6
        • 2.Qd7+
          • 2...Ke5
            • 3.Sg4#
      • 1...gxf2
        • 2.Qxe4+
          • 2...Kd6
            • 3.Bh2#
      • 1...f5
        • 2.Qd7+
          • 2...Kc4
            • 3.Qd4#
          • 2...Ke5
            • 3.Qd4#

FEATURES


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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).