Problem Display
PID: 152683 (4K3/8/4k3/8/1P2p3/4QN2/8/8 w - - 0 1)

Becker, Richard

StrateGems, 2011

4K3/8/4k3/8/1P2p3/4QN2/8/8

#3

4 + 2


SOLUTION


  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc5+
        • 2...Ke6
          • 3.Qe5#
    • 1...Kf5
      • 2.Qg5+
        • 2...Ke6
          • 3.Qe5#
    • 1...Kd6
      • 2.Qc5+
        • 2...Ke6
          • 3.Qe5#
    • 1...Kf6
      • 2.Qg5+
        • 2...Ke6
          • 3.Qe5#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qd7+
          • 2...Kf6
            • 3.Qf7#
      • 1...Kf5
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#
      • 1...Kf6
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#
      • 1...exf3!
    • 1.Qc5?
      • threat
        • 2.Qe5#
      • 1...Kf6
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#
      • 1...exf3!
    • 1.Qg5?
      • threat
        • 2.Qe5#
      • 1...Kd6
        • 2.Qc5+
          • 2...Ke6
            • 3.Qe5#
      • 1...exf3!
    • 1.Qb6+?
      • 1...Kd5
        • 2.Qc5+
          • 2...Ke6
            • 3.Qe5#
        • 2.Qb5+
          • 2...Kd6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qe5#
      • 1...Kf5!
    • 1.Qh6+?
      • 1...Kf5
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#
      • 1...Kd5!
  • Keys
    • 1.b5!
      • 1...Kd5
        • 2.Qd4+
          • 2...Ke6
            • 3.Qe5#
      • 1...Kf5
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#
      • 1...Kd6
        • 2.Qb6+
          • 2...Kd5
            • 3.Qc6#
      • 1...Kf6
        • 2.Qg5+
          • 2...Ke6
            • 3.Qe5#

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).