Problem Display
PID: 78513 (2K5/2pp4/2k1p2n/Pp1bP3/1B1Rp3/1p6/1P6/1B6 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Rudenko, Valentin Fedorovich

1st Prize, Inform.Progulka, 2004

2K5/2pp4/2k1p2n/Pp1bP3/1B1Rp3/1p6/1P6/1B6

#4

7 + 9


56 The Problemist 2007

SOLUTION


  • SOUND
  • Keys
    • 1.Rd1!
      • threat
        • 2.Rc1+
          • 2...Bc4
            • 3.Bxe4+
              • 3...d5
                • 4.exd5 ep#
      • 1...Bc4
        • 2.Bxe4+
          • 2...d5
            • 3.exd5 ep+
              • 3...Bd5
                • 4.Rc1#
      • 1...e3
        • 2.Rc1+
          • 2...Bc4
            • 3.Be4+
              • 3...d5
                • 4.exd5 ep#
      • 1...d6
        • 2.exd6
          • threat
            • 3.Rc1+
              • 3...Bc4
                • 4.Bxe4#
          • 2...cxd6
            • 3.Bxe4
              • threat
                • 4.Rc1#
              • 3...Bxe4
                • 4.Rxd6#
          • 2...Bc4
            • 3.Bxe4+
              • 3...Bd5
                • 4.Rc1#
          • 2...e3
            • 3.Rc1+
              • 3...Bc4
                • 4.Be4#

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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).