Problem Display
PID: 20398 (1R1K4/2p2p2/2kP1N1b/3pp2b/1B1pp2r/1pPP1p2/4rq2/N3Q3 w - - 0 1)

Keller, Michael

1st Prize, Schweizerische Arbeiter Schachzeitung, 1976

1R1K4/2p2p2/2kP1N1b/3pp2b/1B1pp2r/1pPP1p2/4rq2/N3Q3

#4

9 + 14


4655 Michael Keller Ein Meister der Schachkomposition 1994

SOLUTION


  • SOUND
  • Keys
    • 1.dxe4!
      • threat
        • 2.exd5#
      • 1...Rexe4
        • 2.c4
          • threat
            • 3.cxd5#
          • 2...dxc4
            • 3.dxc7
              • threat
                • 4.c8Q#
                • 4.c8R#
              • 3...Bg4
                • 4.Qxe4#
      • 1...Rhxe4
        • 2.Sxb3
          • threat
            • 3.Sa5#
          • 2...Ra2
            • 3.c4
              • threat
                • 4.cxd5#
              • 3...dxc4
                • 4.Qxe4#
              • 3...Ra5
                • 4.Sxa5#
      • 1...dxe4
        • 2.dxc7
          • threat
            • 3.c8Q#
            • 3.c8R#
          • 2...Bg4
            • 3.Sxb3
              • threat
                • 4.Sa5#
              • 3...Ra2
                • 4.Qxe4#

FEATURES


NOT CLASSIFIED


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).