Problem Display
PID: 269896 (6nn/1N2p3/1Pp3pp/p1Bk3p/K2p4/6P1/7P/5Q2 w - - 0 1)

Petrasinovic, Petrasin

Uralski Problemist, 2005

6nn/1N2p3/1Pp3pp/p1Bk3p/K2p4/6P1/7P/5Q2

#4

7 + 10


SOLUTION


  • SOUND
  • Keys
    • 1.Sd8!
      • threat
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
          • 2...Ke5
            • 3.Qf4+
              • 3...Kd5
                • 4.Qxd4#
      • 1...Ke4
        • 2.Qe2+
          • 2...Kd5
            • 3.Qe6+
              • 3...Kxc5
                • 4.Qxc6#
          • 2...Kf5
            • 3.Qe6+
              • 3...Kg5
                • 4.h4#
      • 1...Kxc5
        • 2.Qc1+
          • 2...Kd5
            • 3.Qxc6+
              • 3...Ke5
                • 4.Qe6#
          • 2...Kxb6
            • 3.Qxc6+
              • 3...Ka7
                • 4.Qb7#
          • 2...Kd6
            • 3.Qxc6+
              • 3...Ke5
                • 4.Qe6#
      • 1...d3
        • 2.Qxd3+
          • 2...Kxc5
            • 3.Kxa5
              • threat
                • 4.Se6#
                • 4.Sb7#
          • 2...Ke5
            • 3.Qd4+
              • 3...Kf5
                • 4.Qf4#
      • 1...Sf6
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
          • 2...Ke5
            • 3.Qf4+
              • 3...Kd5
                • 4.Qxd4#
          • 2...Se4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
              • 3...Ke5
                • 4.Qe6#
      • 1...g5
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
          • 2...Ke5
            • 3.Qxc6
              • threat
                • 4.Qe6#
              • 3...Kf5
                • 4.Qe6#
              • 3...e6
                • 4.Qxe6#
      • 1...e5
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
          • 2...e4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#
              • 3...Ke5
                • 4.Qe6#
      • 1...e6
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3+
              • 3...Kxc5
                • 4.Sb7#

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).