Problem Display
PID: 15007 (6bn/5Q2/8/4b3/4npP1/2p2k1P/2P3NB/4KB1R w K - 0 1)

Stevenson, Edward

The Observer, 1957

6bn/5Q2/8/4b3/4npP1/2p2k1P/2P3NB/4KB1R

#3

9 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxf4#
    • 1...Bg7
      • 2.Qxf4#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qe2#
        • 2.Qd3#
      • 1...Bd4
        • 2.Qe2#
      • 1...Sf2
        • 2.Qe2#
      • 1...Sg3
        • 2.Qd3#
      • 1...Sc5
        • 2.Qe2#
      • 1...Bxc4!
    • 1.Qd5?
      • threat
        • 2.Qd1#
        • 2.Qd3#
      • 1...Bd4
        • 2.Qxd4
          • threat
            • 3.Sh4#
            • 3.Qd1#
            • 3.Qd3#
      • 1...Bxd5!
  • Keys
    • 1.Bd3!
      • threat
        • 2.0-0+
          • 2...Sf2
            • 3.Rxf2#
      • 1...Kxg2
        • 2.Bxe4+
          • 2...Kxh3
            • 3.Qh5#
          • 2...f3
            • 3.Qxf3#
      • 1...Bd4
        • 2.Sh4+
          • 2...Ke3
            • 3.Bxf4#
            • 3.Qxf4#
        • 2.Qxf4+
          • 2...Kxg2
            • 3.Qf1#
      • 1...Bg7
        • 2.Qxf4+
          • 2...Kxg2
            • 3.Qf1#
        • 2.0-0+
          • 2...Sf2
            • 3.Rxf2#
            • 3.Qxf4#
      • 1...Sd2
        • 2.Sh4+
          • 2...Ke3
            • 3.Bg1#
      • 1...Sf2
        • 2.0-0
          • threat
            • 3.Rxf2#
          • 2...Bd4
            • 3.Qxf4#
      • 1...Sg3
        • 2.Sh4+
          • 2...Ke3
            • 3.Bg1#

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).