Problem Display
PID: 269790 (8/4p1p1/2P1p1P1/N3kp2/2B1p2p/4R2Q/7K/8 w - - 0 1)

Petrasinovic, Petrasin

Springaren, 2007

8/4p1p1/2P1p1P1/N3kp2/2B1p2p/4R2Q/7K/8

#4

7 + 7


SOLUTION


  • SOUND
  • Keys
    • 1.Re2!
      • 1...Kd4
        • 2.Rd2+
          • 2...Kc5
            • 3.Qb3
              • threat
                • 4.Qb5#
          • 2...Ke5
            • 3.Qxh4
              • 3...f4
                • 4.Qg5#
              • 3...e3
                • 4.Qd4#
      • 1...Kf4
        • 2.Qxh4+
          • 2...Ke5
            • 3.Rd2
              • 3...f4
                • 4.Qg5#
              • 3...e3
                • 4.Qd4#
      • 1...Kd6
        • 2.Rd2+
          • 2...Kc5
            • 3.Qb3
              • threat
                • 4.Qb5#
          • 2...Ke5
            • 3.Qxh4
              • 3...f4
                • 4.Qg5#
              • 3...e3
                • 4.Qd4#
          • 2...Kc7
            • 3.Qb3
              • threat
                • 4.Qb7#
              • 3...Kc8
                • 4.Qb7#
      • 1...Kf6
        • 2.Qxh4+
          • 2...Ke5
            • 3.Rd2
              • 3...f4
                • 4.Qg5#
              • 3...e3
                • 4.Qd4#
          • 2...Kxg6
            • 3.Bxe6
              • threat
                • 4.Rg2#
      • 1...e3
        • 2.Qxe3+
          • 2...Kf6
            • 3.Rg2
              • threat
                • 4.Qxe6#
              • 3...e5
                • 4.Qg5#
      • 1...f4
        • 2.Qxe6+
          • 2...Kd4
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd2#

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).