Problem Display
PID: 268957 (2B5/5K2/8/N1k5/2p5/8/1Q6/8 w - - 0 1)

Petrasinovic, Petrasin

SuperProblem, 2018

2B5/5K2/8/N1k5/2p5/8/1Q6/8

#4

4 + 2


SOLUTION


  • SOUND
  • Keys
    • 1.Qc3!
      • threat
        • 2.Sb3+
          • 2...Kb5
            • 3.Qa5+
              • 3...Kc6
                • 4.Qc5#
          • 2...Kd5
            • 3.Qd4+
              • 3...Kc6
                • 4.Qc5#
          • 2...Kb6
            • 3.Qa5+
              • 3...Kc6
                • 4.Qc5#
          • 2...Kc6
            • 3.Qxc4+
              • 3...Kb6
                • 4.Qc5#
              • 3...Kd6
                • 4.Qc5#
          • 2...Kd6
            • 3.Qxc4
              • 3...Ke5
                • 4.Qd4#
      • 1...Kb5
        • 2.Sb7
          • threat
            • 3.Qa5+
              • 3...Kc6
                • 4.Qc5#
          • 2...Kb6
            • 3.Qa5+
              • 3...Kc6
                • 4.Qc5#
          • 2...Kc6
            • 3.Qa5
              • 3...c3
                • 4.Qc5#
      • 1...Kd5
        • 2.Qxc4+
          • 2...Ke5
            • 3.Sb3
              • 3...Kd6
                • 4.Qc5#
          • 2...Kd6
            • 3.Sb3
              • 3...Ke5
                • 4.Qd4#
      • 1...Kb6
        • 2.Qb4+
          • 2...Kc7
            • 3.Ke7
              • threat
                • 4.Qb7#
              • 3...Kxc8
                • 4.Qb7#
      • 1...Kd6
        • 2.Qxc4
          • 2...Ke5
            • 3.Sb3
              • 3...Kd6
                • 4.Qc5#

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).