Problem Display
PID: 210761 (8/n1p5/K1kpP2b/1p6/1B4B1/1b1P4/2P5/3R4 w - - 0 1)

Cheney, George Nelson

L'Illustration, 1861

8/n1p5/K1kpP2b/1p6/1B4B1/1b1P4/2P5/3R4

#4

7 + 7


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.c4!
      • threat
        • 2.Bf3+
          • 2...d5
            • 3.Bxd5#
      • 1...Bxd1
        • 2.e7
          • threat
            • 3.e8Q#
            • 3.e8B#
          • 2...Bxg4
            • 3.e8Q+
              • 3...Bd7
                • 4.Qa8#
          • 2...bxc4
            • 3.e8Q+
              • 3...Kd5
                • 4.Qe4#
      • 1...Bxc4
        • 2.dxc4
          • threat
            • 3.Bf3+
              • 3...d5
                • 4.Bxd5#
                • 4.cxd5#
            • 3.Bh5
              • threat
                • 4.Be8#
            • 3.e7
              • threat
                • 4.e8Q#
                • 4.e8B#
          • 2...bxc4
            • 3.Bf3+
              • 3...d5
                • 4.Bxd5#
      • 1...bxc4
        • 2.Bf3+
          • 2...d5
            • 3.Bh5
              • threat
                • 4.Be8#
              • 3...d4
                • 4.Bf3#

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).