Problem Display
PID: 264867 (8/6Q1/B7/8/Kp1Nkp2/8/7P/8 w - - 0 1)

Petrasinovic, Petrasin

Schweizerische Schachzeitung, 2012

8/6Q1/B7/8/Kp1Nkp2/8/7P/8

#4

5 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe5+
          • 2...Kf3
            • 3.Qe2#
      • 1...Ke3
        • 2.Qb2
          • threat
            • 3.Qe2#
          • 2...Ke4
            • 3.Qe5+
              • 3...Kf3
                • 4.Qe2#
      • 1...Kf3
        • 2.Bf1
          • threat
            • 3.Qg2+
              • 3...Ke3
                • 4.Qe2#
          • 2...Kf2
            • 3.Qg2+
              • 3...Ke1
                • 4.Qe2#
              • 3...Ke3
                • 4.Qe2#
          • 2...Ke3
            • 3.Qd4+
              • 3...Kf3
                • 4.Se5#
          • 2...Ke4
            • 3.Qe5+
              • 3...Kf3
                • 4.Qe2#
      • 1...Kd5
        • 2.Qd7+
          • 2...Kc5
            • 3.Bb5
              • threat
                • 4.Qd4#
              • 3...Kb6
                • 4.Qa7#
      • 1...Kf5
        • 2.Bd3+
          • 2...Ke6
            • 3.Be4
              • threat
                • 4.Qe7#
              • 3...Kd6
                • 4.Qe7#
        • 2.Qh6
          • threat
            • 3.Bd3+
              • 3...Kg4
                • 4.Se5#
          • 2...Ke4
            • 3.Qe6+
              • 3...Kf3
                • 4.Qe2#
          • 2...Kg4
            • 3.Sd4
              • threat
                • 4.Bc8#

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).