Problem Display
PID: 143957 (1N5K/rp6/pB3P2/2n1P3/Pp1k1P2/1B2p3/PP3p1P/1Q2b3 w - - 0 1)

Nielsen, Kristian

Tidskrift for Schack, 1909

1N5K/rp6/pB3P2/2n1P3/Pp1k1P2/1B2p3/PP3p1P/1Q2b3

#4

12 + 9


SOLUTION


  • COOKED
  • Keys
    • 1.Bxc5+!
      • 1...Kxc5
        • 2.Qd3
          • threat
            • 3.Qxe3#
            • 3.Qd6#
          • 2...Kb6
            • 3.Qd8+
              • 3...Kc5
                • 4.Qd6#
    • 1.Qh7!
      • threat
        • 2.Sc6+
          • 2...bxc6
            • 3.Bxc5+
              • 3...Kxc5
                • 4.Qxa7#
        • 2.Bxc5+
          • 2...Kxc5
            • 3.Qc7+
              • 3...Kd4
                • 4.Qc4#
        • 2.Bc2
          • threat
            • 3.Qd3#
            • 3.Qe4#
          • 2...Kc4
            • 3.Qd3+
              • 3...Sxd3
                • 4.Bb3#
          • 2...Kd5
            • 3.Qe4+
              • 3...Ke6
                • 4.Qc4#
              • 3...Sxe4
                • 4.Bb3#
      • 1...e2
        • 2.Bc2
          • threat
            • 3.Qd3#
            • 3.Qe4#
          • 2...Ke3
            • 3.Qd3+
              • 3...Kxf4
                • 4.Qg3#
          • 2...Kc4
            • 3.Qd3+
              • 3...Sxd3
                • 4.Bb3#
          • 2...Kd5
            • 3.Qe4+
              • 3...Ke6
                • 4.Qc4#
              • 3...Sxe4
                • 4.Bb3#

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).