Problem Display
PID: 253603 (k1bN1N2/2p5/8/1pP2pQ1/1P3Pp1/3P2K1/8/8 w - - 0 1)

Luke, R

The Problemist, 1969

k1bN1N2/2p5/8/1pP2pQ1/1P3Pp1/3P2K1/8/8

#4

8 + 6


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Sc6!
      • 1...Kb7
        • 2.Qd8
          • 2...Kxc6
            • 3.Qxc8
              • 3...Kd5
                • 4.Qd7#
          • 2...Be6
            • 3.Qb8+
              • 3...Ka6
                • 4.Qa7#
                • 4.Qa8#
              • 3...Kxc6
                • 4.Qa8#
          • 2...Bd7
            • 3.Qb8+
              • 3...Ka6
                • 4.Qa7#
                • 4.Qa8#
              • 3...Kxc6
                • 4.Qa8#
            • 3.Qxd7
              • 3...Ka6
                • 4.Qc8#
              • 3...Ka8
                • 4.Qc8#
      • 1...Ba6
        • 2.Qg7
          • threat
            • 3.Qxc7
              • threat
                • 4.Qb8#
                • 4.Qa7#
          • 2...Kb7
            • 3.Qa1
              • 3...Kxc6
                • 4.Qh1#
              • 3...Ka8
                • 4.Qxa6#
              • 3...Kc8
                • 4.Qxa6#
          • 2...Bb7
            • 3.Qa1+
              • 3...Ba6
                • 4.Qxa6#
          • 2...Bc8
            • 3.Qxc7
              • threat
                • 4.Qb8#
                • 4.Qa7#
                • 4.Qxc8#
      • 1...Be6
        • 2.Qd8+
          • 2...Kb7
            • 3.Qb8+
              • 3...Ka6
                • 4.Qa7#
                • 4.Qa8#
              • 3...Kxc6
                • 4.Qa8#
      • 1...Bd7
        • 2.Qd8+
          • 2...Kb7
            • 3.Qb8+
              • 3...Ka6
                • 4.Qa7#
                • 4.Qa8#
              • 3...Kxc6
                • 4.Qa8#
            • 3.Qxd7
              • 3...Ka6
                • 4.Qc8#
              • 3...Ka8
                • 4.Qc8#

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).