Problem Display
PID: 261844 (2b2r1q/2Q5/1K2p3/3N1rP1/1p1pkBP1/1B1p1pP1/PP2pP2/2R5 w - - 0 1)

Kuzovkov, Aleksandr S

1st Prize, 08. World Cup, 2020

2b2r1q/2Q5/1K2p3/3N1rP1/1p1pkBP1/1B1p1pP1/PP2pP2/2R5

#4

12 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qxd3+
          • 2...Kxd3
            • 3.Bc2+
              • 3...Kc4
                • 4.Be4#
      • 1...Rxf4
        • 2.Sf6+
          • 2...Qxf6
            • 3.Qc6+
              • 3...Ke5
                • 4.Rc5#
          • 2...R4xf6
            • 3.Qc6+
              • 3...Ke5
                • 4.Rc5#
          • 2...R8xf6
            • 3.Qc6+
              • 3...Ke5
                • 4.Rc5#
      • 1...Rxd5
        • 2.Qxd3+
          • 2...Kxd3
            • 3.Bc2+
              • 3...Kc4
                • 4.Bb1#
                • 4.Be4#
                • 4.Bf5#
                • 4.Bg6#
                • 4.Bh7#
      • 1...exd5
        • 2.Qxd3+
          • 2...Kxd3
            • 3.Bc2+
              • 3...Kc4
                • 4.Bb1#
                • 4.Be4#
                • 4.Bxf5#
      • 1...Qh1
        • 2.Qxd4+
          • 2...Kxd4
            • 3.Rc4+
              • 3...Kxd5
                • 4.Rxb4#
      • 1...Ba6
        • 2.Sc3+
          • 2...bxc3
            • 3.Qxe6+
              • 3...Qe5
                • 4.Bd5#
              • 3...Re5
                • 4.Bd5#

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).