Problem Display
PID: 146343 (8/8/2K5/8/4k1N1/7B/8/Q7 w - - 0 1)

Skripnik, Anatoly Nikolaevich

3rd Prize, The Problemist, 2012

8/8/2K5/8/4k1N1/7B/8/Q7

#4

4 + 1


56 The Problemist 2013

SOLUTION


  • SOUND
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qd5+
          • 2...Kf4
            • 3.Qe5+
              • 3...Kf3
                • 4.Qe3#
      • 1...Kd3
        • 2.Bf1+
          • 2...Kc3
            • 3.Kb5
              • 3...Kd4
                • 4.Qc4#
          • 2...Ke4
            • 3.Qf7
              • 3...Kd4
                • 4.Qc4#
      • 1...Kf3
        • 2.Qe6
          • threat
            • 3.Qe3#
          • 2...Kg3
            • 3.Qh6
              • 3...Kf3
                • 4.Qe3#
          • 2...Kf4
            • 3.Qe5+
              • 3...Kf3
                • 4.Qe3#
      • 1...Kd4
        • 2.Bf1
          • threat
            • 3.Qc4#
          • 2...Kc3
            • 3.Kb5
              • 3...Kd4
                • 4.Qc4#
          • 2...Ke4
            • 3.Qf7
              • 3...Kd4
                • 4.Qc4#
      • 1...Kf4
        • 2.Qe6
          • threat
            • 3.Qe5+
              • 3...Kf3
                • 4.Qe3#
          • 2...Kg3
            • 3.Qh6
              • 3...Kf3
                • 4.Qe3#
          • 2...Kg5
            • 3.Qf6+
              • 3...Kh5
                • 4.Qh6#
      • 1...Kf5
        • 2.Qf7+
          • 2...Ke4
            • 3.Bf1
              • 3...Kd4
                • 4.Qc4#
          • 2...Kg5
            • 3.Qf6+
              • 3...Kh5
                • 4.Qh6#

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).