Problem Display
PID: 269596 (8/8/Q3p2P/3pk2P/1N6/2P5/2K3B1/8 w - - 0 1)

Petrasinovic, Petrasin

Comm., Springaren, 2007

8/8/Q3p2P/3pk2P/1N6/2P5/2K3B1/8

#4

7 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Qb7!
      • 1...Kf4
        • 2.Qg7
          • threat
            • 3.Sd3+
              • 3...Ke3
                • 4.Qe5#
              • 3...Kf5
                • 4.Qg6#
          • 2...Ke3
            • 3.Qd4+
              • 3...Ke2
                • 4.Qd2#
            • 3.Sd3
              • threat
                • 4.Qe5#
              • 3...Ke2
                • 4.Qe5#
              • 3...e5
                • 4.Qxe5#
          • 2...Kf5
            • 3.Sd3
              • threat
                • 4.Qg6#
          • 2...e5
            • 3.Sd3+
              • 3...Ke3
                • 4.Qxe5#
              • 3...Kf5
                • 4.Qg6#
            • 3.Sxd5+
              • 3...Kf5
                • 4.Qg6#
      • 1...Kf5
        • 2.Qg7
          • threat
            • 3.Sd3
              • threat
                • 4.Qg6#
          • 2...Kf4
            • 3.Sd3+
              • 3...Ke3
                • 4.Qe5#
              • 3...Kf5
                • 4.Qg6#
          • 2...e5
            • 3.Qg6+
              • 3...Kf4
                • 4.Sxd5#
      • 1...Kd6
        • 2.Sd3
          • 2...e5
            • 3.Bh3
              • threat
                • 4.Qd7#
          • 2...d4
            • 3.Bc6
              • threat
                • 4.Qd7#
      • 1...Kf6
        • 2.Qg7+
          • 2...Kf5
            • 3.Sd3
              • threat
                • 4.Qg6#
      • 1...d4
        • 2.Sd3+
          • 2...Kf5
            • 3.Qg7
              • threat
                • 4.Qg6#
          • 2...Kd6
            • 3.Bc6
              • threat
                • 4.Qd7#
          • 2...Kf6
            • 3.Qg7+
              • 3...Kf5
                • 4.Qg6#

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).