Problem Display
PID: 244923 (2K1N2Q/3p2R1/4kr1p/2Pp3P/3r1n2/5PPb/1R4p1/B1b3q1 w - - 0 1)

Brenander, Oskar Wilhelm

Tidskrift for Schack, 1916

2K1N2Q/3p2R1/4kr1p/2Pp3P/3r1n2/5PPb/1R4p1/B1b3q1

#4

10 + 11


SOLUTION


  • COOKED
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe8#
      • 1...Rf8+
        • 2.Qxf8
          • threat
            • 3.Re7#
            • 3.Qe7#
          • 2...Ke5
            • 3.Re7+
              • 3...Be6
                • 4.Qg7#
                • 4.Qf5#
                • 4.Qh8#
              • 3...Se6
                • 4.Qg7#
                • 4.Qh8#
          • 2...Sg6
            • 3.Rxg6+
              • 3...Ke5
                • 4.Qg7#
                • 4.Qf6#
                • 4.Qh8#
            • 3.Qe8+
              • 3...Kf6
                • 4.Rxg6#
              • 3...Se7+
                • 4.Qxe7#
      • 1...Ke5
        • 2.Re7+
          • 2...Be6
            • 3.Sf7+
              • 3...Kf5
                • 4.g4#
          • 2...Se6
            • 3.Re2+
              • 3...Qe3
                • 4.f4#
              • 3...Be3
                • 4.f4#
    • 1.Rg5!
      • threat
        • 2.Qxf6#
      • 1...Rg6
        • 2.Re5+
          • 2...Kf7
            • 3.hxg6+
              • 3...Kxg6
                • 4.Qg7#
                • 4.Qg8#
              • 3...Sxg6
                • 4.Sd6#
                • 4.Qg7#
        • 2.Rxg6+
          • 2...Ke7
            • 3.Qf6+
              • 3...Kxe8
                • 4.Rg8#
            • 3.Qh7+
              • 3...Kxe8
                • 4.Rg8#
              • 3...Kf8
                • 4.Rg8#
          • 2...Kf7
            • 3.Sd6+
              • 3...Ke7
                • 4.Qf6#
                • 4.Qg7#
                • 4.Qd8#
                • 4.Qe8#
            • 3.Rf6+
              • 3...Ke7
                • 4.Qf8#
            • 3.Qf6+
              • 3...Kxe8
                • 4.Rg8#
            • 3.Qh7+
              • 3...Kxe8
                • 4.Rg8#
              • 3...Kf8
                • 4.Rg8#
            • 3.Qg8+
              • 3...Ke7
                • 4.Rg7#
        • 2.hxg6
          • threat
            • 3.Re5#
            • 3.Qe5#
            • 3.Qf6#
          • 2...Ke7
            • 3.Qf6+
              • 3...Kxe8
                • 4.Qd8#
                • 4.Qf7#
            • 3.Qg7+
              • 3...Ke6
                • 4.Sc7#
                • 4.Re5#
                • 4.Qe5#
                • 4.Qf6#
                • 4.Qxd7#
                • 4.Qf7#
              • 3...Kxe8
                • 4.Qf7#
            • 3.Qh7+
              • 3...Ke6
                • 4.Qxd7#
                • 4.Qf7#
              • 3...Kxe8
                • 4.Qf7#
              • 3...Kf8
                • 4.Qf7#

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).