Problem Display
PID: 42333 (r7/1n5P/4p1BK/p3P3/Rp3pk1/6pb/3BP1pP/2b3N1 w - - 0 1)

Erdos, Dr Geza

4th Comm., BCF 032. Ty., 1939-1940

r7/1n5P/4p1BK/p3P3/Rp3pk1/6pb/3BP1pP/2b3N1

#3

9 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...b3
      • 2.Rxf4#
  • Tries
    • 1.Bh5+?
      • 1...Kh4
        • 2.Sf3#
      • 1...Kf5!
  • Keys
    • 1.e4!
      • threat
        • 2.Bh5+
          • 2...Kh4
            • 3.Sf3#
      • 1...Kh4
        • 2.Sf3+
          • 2...Kg4
            • 3.Bh5#
      • 1...gxh2
        • 2.Bh5+
          • 2...Kg3
            • 3.Be1#
          • 2...Kh4
            • 3.Be1#
      • 1...fxe4 ep
        • 2.Bxb4
          • threat
            • 3.Be1#
            • 3.Bd2#
            • 3.Ba3#
            • 3.Bc3#
            • 3.Bxa5#
            • 3.Bc5#
            • 3.Bd6#
            • 3.Be7#
            • 3.Bf8#
          • 2...Kf4
            • 3.Bc3#
            • 3.Bd6#
          • 2...Kh4
            • 3.Be7#
          • 2...axb4
            • 3.Rxb4#
          • 2...Rf8
            • 3.Bxf8#
          • 2...Ba3
            • 3.Bxa3#
          • 2...Sc5
            • 3.Bxc5#
          • 2...Sd6
            • 3.Bxd6#
      • 1...f3
        • 2.Bh5+
          • 2...Kh4
            • 3.Sxf3#

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).