Problem Display
PID: 203048 (K1k5/8/2NP1NP1/8/1p5r/7p/5p1r/5n2 w - - 0 1)

Mihalek, Frederick M

The Problemist, 1983

K1k5/8/2NP1NP1/8/1p5r/7p/5p1r/5n2

#4

5 + 7


SOLUTION


  • SOUND
  • Keys
    • 1.Ka7!
      • threat
        • 2.d7+
          • 2...Kc7
            • 3.d8Q+
              • 3...Kxc6
                • 4.Qb6#
      • 1...Rh7+
        • 2.gxh7
          • threat
            • 3.h8Q#
            • 3.h8R#
          • 2...Rg2
            • 3.h8Q+
              • 3...Rg8
                • 4.Qxg8#
            • 3.h8R+
              • 3...Rg8
                • 4.Rxg8#
      • 1...Rd4
        • 2.Sxd4
          • threat
            • 3.Se6
              • threat
                • 4.d7#
          • 2...Kd8
            • 3.Se6+
              • 3...Kc8
                • 4.d7#
            • 3.Kb7
              • threat
                • 4.Sc6#
                • 4.Se6#
            • 3.Kb8
              • threat
                • 4.Sc6#
                • 4.Se6#
      • 1...Rh8
        • 2.Se7+
          • 2...Kd8
            • 3.Kb8
              • threat
                • 4.Sc6#

FEATURES


NOT CLASSIFIED


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).