Problem Display
PID: 269744 (3Q4/6N1/3P4/2pk4/3p4/7P/P2Pp3/4K1B1 w - - 0 1)

Petrasinovic, Petrasin

Problemist Ukraini, 2012

3Q4/6N1/3P4/2pk4/3p4/7P/P2Pp3/4K1B1

#4

8 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Qc8!
      • 1...Kc4
        • 2.Qb7
          • threat
            • 3.Qb3#
          • 2...Kd3
            • 3.Qb1+
              • 3...Kc4
                • 4.Qb3#
      • 1...Ke5
        • 2.Qe6+
          • 2...Kf4
            • 3.Qf5+
              • 3...Kg3
                • 4.Qg4#
      • 1...Kxd6
        • 2.Bh2+
          • 2...Ke7
            • 3.Be5
              • threat
                • 4.Qe8#
              • 3...Kf7
                • 4.Qe8#
      • 1...c4
        • 2.Bh2
          • threat
            • 3.Qb7+
              • 3...Kc5
                • 4.Se6#
          • 2...d3
            • 3.Qb7+
              • 3...Kd4
                • 4.Se6#
              • 3...Kc5
                • 4.Se6#
          • 2...c3
            • 3.d3
              • 3...c2
                • 4.Qc4#

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).