Problem Display
PID: 211134 (8/1p2K3/b5B1/PPBk4/7R/8/3PP3/8 w - - 0 1)

Alexander, Frederick Forrest Lawrie

The Observer, 1921

(First published on Sun Oct 30 1921)

8/1p2K3/b5B1/PPBk4/7R/8/3PP3/8

#3

8 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bd4+
        • 2...Kd5
          • 3.Bf7#
      • 2.Bd6+
        • 2...Kd5
          • 3.Bf7#
      • 2.Be4
        • threat
          • 3.d4#
      • 2.d4+
        • 2...Kd5
          • 3.Bf7#
      • 2.e4
        • threat
          • 3.d4#
  • Tries
    • 1.Bb6?
      • 1...Ke5
        • 2.Bd4+
          • 2...Kd5
            • 3.Bf7#
        • 2.Be4
          • 2...Bxb5
            • 3.d4#
        • 2.d4+
          • 2...Kd5
            • 3.Bf7#
        • 2.e4
          • 2...Bxb5
            • 3.d4#
      • 1...Bxb5!
    • 1.Bf7+?
      • 1...Ke5
        • 2.Be6
          • threat
            • 3.Bd4#
            • 3.Bd6#
            • 3.d4#
        • 2.e4
          • threat
            • 3.d4#
      • 1...Kxc5!
    • 1.Rd4+?
      • 1...Ke5
        • 2.e3
          • threat
            • 3.Bd6#
      • 1...Kxc5!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Bd6
          • threat
            • 3.Be4#
            • 3.Bf7#
            • 3.e4#
      • 1...Kxc5
        • 2.d4+
          • 2...Kxb5
            • 3.Be8#
          • 2...Kd5
            • 3.e4#
      • 1...Ke5
        • 2.Bd6+
          • 2...Kd5
            • 3.Be4#
            • 3.Bf7#
            • 3.e4#
      • 1...Bxb5
        • 2.Be4+
          • 2...Kxc5
            • 3.d4#
          • 2...Ke5
            • 3.Bd6#

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).