Problem Display
PID: 247956 (KB6/P3p1p1/3p2Qp/2pkp2P/3p1p2/5N2/4RP2/8 w - - 0 1)

Petrasinovic, Petrasin

Uralski Problemist, 2006

KB6/P3p1p1/3p2Qp/2pkp2P/3p1p2/5N2/4RP2/8

#4

8 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Rb2!
      • threat
        • 2.Qf7+
          • 2...Ke4
            • 3.Sd2+
              • 3...Kd3
                • 4.Qc4#
          • 2...Kc6
            • 3.Sxe5+
              • 3...dxe5
                • 4.Qe6#
          • 2...e6
            • 3.Qb7+
              • 3...Kc4
                • 4.Qb3#
      • 1...Kc4
        • 2.Qe4
          • threat
            • 3.Sd2+
              • 3...Kc3
                • 4.Qc2#
      • 1...Kc6
        • 2.Qe6
          • threat
            • 3.Sxe5#
          • 2...c4
            • 3.Sxe5+
              • 3...Kc5
                • 4.Qxc4#
      • 1...d3
        • 2.Qf7+
          • 2...Ke4
            • 3.Sd2+
              • 3...Kd4
                • 4.Qc4#
          • 2...Kc6
            • 3.Sxe5+
              • 3...dxe5
                • 4.Qe6#
          • 2...e6
            • 3.Qb7+
              • 3...Kc4
                • 4.Qb3#
      • 1...e4
        • 2.Qf7+
          • 2...Kc6
            • 3.Se5+
              • 3...dxe5
                • 4.Qe6#
          • 2...e6
            • 3.Qb7+
              • 3...Kc4
                • 4.Qb3#
      • 1...e6
        • 2.Sd2
          • threat
            • 3.Qe4#
          • 2...Kc6
            • 3.Qxe6
              • threat
                • 4.Qxd6#
          • 2...c4
            • 3.Rb5+
              • 3...Kc6
                • 4.Qe8#

FEATURES


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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).