Problem Display
PID: 256211 (K3k3/R7/4N3/p2pp3/2p2pP1/2R4p/pN1bB1Pq/4n2r w - - 0 1)

Keller, Michael

1st Prize, Main-Post, 1973

K3k3/R7/4N3/p2pp3/2p2pP1/2R4p/pN1bB1Pq/4n2r

#4

8 + 12


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.g5!
      • threat
        • 2.Bh5#
      • 1...hxg2
        • 2.Sxc4
          • threat
            • 3.Sd6#
          • 2...dxc4
            • 3.Rxc4
              • threat
                • 4.Rc8#
      • 1...Sf3
        • 2.Bxf3
          • threat
            • 3.Bh5#
          • 2...hxg2
            • 3.Sxc4
              • threat
                • 4.Sd6#
              • 3...dxc4
                • 4.Bc6#
        • 2.Bxc4
          • threat
            • 3.Bb5#
          • 2...dxc4
            • 3.Sxc4
              • threat
                • 4.Sd6#
          • 2...Sd4
            • 3.Bb5+
              • 3...Sxb5
                • 4.Rc8#
              • 3...Sc6
                • 4.Bxc6#
      • 1...f3
        • 2.Sxc4
          • threat
            • 3.Sd6#
          • 2...dxc4
            • 3.Bxc4
              • threat
                • 4.Bb5#
          • 2...e4
            • 3.Se5
              • threat
                • 4.Bb5#
                • 4.Rc8#
        • 2.Rxc4
          • threat
            • 3.Rc8#
          • 2...Bxg5
            • 3.Rc8+
              • 3...Bd8
                • 4.Bb5#
                • 4.Rxd8#
            • 3.Rf4
              • threat
                • 4.Bb5#
                • 4.Rf8#
          • 2...dxc4
            • 3.Bxc4
              • threat
                • 4.Bb5#

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).