Problem Display
PID: 183056 (4n3/2p5/p1K1B3/k3b1B1/1R6/P7/2NP4/3n4 w - - 0 1)

Knopfler, Marc

Bulletin Ouvrier des Echecs, 1953

4n3/2p5/p1K1B3/k3b1B1/1R6/P7/2NP4/3n4

#4

7 + 6


SOLUTION


  • COOKED
  • Keys
    • 1.Sa1!
      • threat
        • 2.Sb3#
      • 1...Bxa1
        • 2.Bb3
          • threat
            • 3.Ra4#
          • 2...Sb2
            • 3.Bd8
              • 3...Sd1
                • 4.Ra4#
              • 3...Sd3
                • 4.Ra4#
              • 3...Sa4
                • 4.Rxa4#
              • 3...Sc4
                • 4.Ra4#
              • 3...Sd6
                • 4.Bxc7#
              • 3...Sf6
                • 4.Bxc7#
              • 3...Sg7
                • 4.Bxc7#
          • 2...Sc3
            • 3.dxc3
              • threat
                • 4.Ra4#
    • 1.d4!
      • threat
        • 2.Sa1
          • threat
            • 3.Sb3#
      • 1...Bd6
        • 2.Bb3
          • threat
            • 3.Ra4#
          • 2...Sb2
            • 3.Bd2
              • threat
                • 4.Ra4#
                • 4.Rb5#
              • 3...Bxb4
                • 4.Bxb4#
                • 4.axb4#
          • 2...Sc3
            • 3.Se3
              • threat
                • 4.Sc4#
            • 3.Bd2
              • threat
                • 4.Ra4#
              • 3...Bxb4
                • 4.axb4#
              • 3...Sa4
                • 4.Rxa4#
                • 4.Rb5#

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).