Problem Display
PID: 179256 (8/8/N1p3pK/8/1N1k4/5Q2/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2010

8/8/N1p3pK/8/1N1k4/5Q2/8/8

#3

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qd3#
  • Tries
    • 1.Qc3+?
      • 1...Ke4
        • 2.Kg5
          • 2...c5
            • 3.Sxc5#
      • 1...Kxc3!
    • 1.Qe3+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kxe3!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Kf6
          • threat
            • 3.Qd3#
          • 2...Kc4
            • 3.Qd3#
      • 1...Ke5
        • 2.Qf6+
          • 2...Ke4
            • 3.Qf4#
      • 1...c5
        • 2.Qd3+
          • 2...Ke5
            • 3.Qd5#

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).