Problem Display
PID: 216761 (6QN/1pNbpBp1/2pRnb2/2p1k1n1/4p1Pp/1P3p1P/1P3B1K/R7 w - - 0 1)

Wires, EP

Boston Herald, 1889

6QN/1pNbpBp1/2pRnb2/2p1k1n1/4p1Pp/1P3p1P/1P3B1K/R7

#4

12 + 13


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Qb8!
      • threat
        • 2.Rd5+
          • 2...Kf4
            • 3.Sxe6#
            • 3.Sg6#
            • 3.Rf5#
          • 2...cxd5
            • 3.Sxe6#
      • 1...Sxh3
        • 2.Sg6+
          • 2...Kxd6
            • 3.Sxe6+
              • 3...Kd5
                • 4.Sef4#
            • 3.Sa8+
              • 3...Kd5
                • 4.Sb6#
              • 3...Sc7
                • 4.Qxc7#
        • 2.Rd5+
          • 2...Kf4
            • 3.Sxe6+
              • 3...Kxg4
                • 4.Bh5#
        • 2.Sxe6
          • threat
            • 3.Sg6#
            • 3.Rdd1#
            • 3.Rd2#
            • 3.Rd3#
            • 3.Rd4#
            • 3.Rxd7#
          • 2...exd6
            • 3.Sg6+
              • 3...Kd5
                • 4.Sef4#
                • 4.Sc7#
          • 2...Bg5
            • 3.Rd5+
              • 3...Kxd5
                • 4.Sf4#
              • 3...Kf6
                • 4.Rf5#
                • 4.Qe5#
      • 1...Sxf7
        • 2.Sg6+
          • 2...Kxd6
            • 3.Sxe6+
              • 3...Kd5
                • 4.Sef4#
                • 4.Sgf4#
              • 3...Kxe6
                • 4.Sf4#
        • 2.Rd5+
          • 2...cxd5
            • 3.Sxf7+
              • 3...Kf4
                • 4.Sxd5#
                • 4.Sxe6#
      • 1...e3
        • 2.Rd5+
          • 2...Ke4
            • 3.Bg6+
              • 3...Kf4
                • 4.Sxe6#
          • 2...Kf4
            • 3.Sxe6+
              • 3...Ke4
                • 4.Sxc5#
          • 2...cxd5
            • 3.Sxe6+
              • 3...Ke4
                • 4.Bg6#

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).