Problem Display
PID: 29628 (2NN4/2k5/8/8/8/8/6p1/1Q4Kb w - - 0 1)

Murkisch, Godehard

The Problemist, 1988

2NN4/2k5/8/8/8/8/6p1/1Q4Kb

#3

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Kxd8
      • 2.Qb7
        • 2...Ke8
          • 3.Qe7#
  • Tries
    • 1.Qd3?
      • 1...Kb8
        • 2.Qd7
          • 2...Ka8
            • 3.Qa7#
            • 3.Qb7#
      • 1...Kxc8!
    • 1.Qe4?
      • 1...Kxc8
        • 2.Qe7
          • 2...Kb8
            • 3.Qb7#
      • 1...Kxd8
        • 2.Qb7
          • 2...Ke8
            • 3.Qe7#
      • 1...Kd7!
    • 1.Qf5?
      • 1...Kb8
        • 2.Qd7
          • 2...Ka8
            • 3.Qa7#
            • 3.Qb7#
        • 2.Qc5
          • 2...Ka8
            • 3.Qa7#
      • 1...Kxd8!
    • 1.Qd1?
      • 1...Kb8
        • 2.Qd7
          • 2...Ka8
            • 3.Qa7#
            • 3.Qb7#
      • 1...Kxc8!
    • 1.Qb4?
      • 1...Kxc8
        • 2.Qe7
          • 2...Kb8
            • 3.Qb7#
      • 1...Kxd8
        • 2.Qb7
          • 2...Ke8
            • 3.Qe7#
      • 1...Kd7!
    • 1.Qb5?
      • 1...Kxd8
        • 2.Qb7
          • 2...Ke8
            • 3.Qe7#
      • 1...Kxc8!
  • Keys
    • 1.Qh7+!
      • 1...Kxc8
        • 2.Qe7
          • 2...Kb8
            • 3.Qb7#
      • 1...Kxd8
        • 2.Qb7
          • 2...Ke8
            • 3.Qe7#

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).