Problem Display
PID: 198989 (4N3/1qp2p2/1p6/1pkn2p1/1N1pR2b/1PP3p1/2pBnPB1/2rbQ2K w - - 0 1)

Cuppini, Alessandro

2nd Prize, Kos-70 JT, 1998-2000

4N3/1qp2p2/1p6/1pkn2p1/1N1pR2b/1PP3p1/2pBnPB1/2rbQ2K

#4

10 + 15


SOLUTION


  • SOUND
  • Keys
    • 1.Rg4!
      • threat
        • 2.cxd4+
          • 2...Sxd4
            • 3.Qe7+
              • 3...Sxe7
                • 4.Sd3#
      • 1...dxc3
        • 2.Be3+
          • 2...Sd4
            • 3.Qxc3+
              • 3...Sxc3
                • 4.Sd3#
      • 1...Qa6
        • 2.cxd4+
          • 2...Sxd4
            • 3.Qe7+
              • 3...Sxe7
                • 4.Sd3#
                • 4.Sxa6#
      • 1...Qb8
        • 2.cxd4+
          • 2...Sxd4
            • 3.Qe7+
              • 3...Sxe7
                • 4.Sd3#
                • 4.Sa6#
      • 1...Sef4
        • 2.Qe7+
          • 2...Sxe7
            • 3.Sd3+
              • 3...Sxd3
                • 4.cxd4#
      • 1...Sdf4
        • 2.Sd3+
          • 2...Sxd3
            • 3.cxd4+
              • 3...Sxd4
                • 4.Qe7#

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).