Problem Display
PID: 183367 (8/1K6/3k1BR1/5B2/8/8/1P3p2/8 w - - 0 1)

Howard, David M

Problem Observer, 2016

8/1K6/3k1BR1/5B2/8/8/1P3p2/8

#4

5 + 2


SOLUTION


  • SOUND
  • Keys
    • 1.Rg4!
      • threat
        • 2.Kb6
          • threat
            • 3.Rd4#
          • 2...Kd5
            • 3.Rd4#
        • 2.b4
          • threat
            • 3.Rd4#
          • 2...Kd5
            • 3.Rd4#
      • 1...f1Q
        • 2.Rd4+
          • 2...Kc5
            • 3.b4+
              • 3...Kb5
                • 4.Bd7#
      • 1...f1S
        • 2.Rd4+
          • 2...Kc5
            • 3.b4+
              • 3...Kb5
                • 4.Bd7#
            • 3.Bd3
              • threat
                • 4.b4#
            • 3.Bd7
              • threat
                • 4.b4#
      • 1...f1B
        • 2.Rd4+
          • 2...Kc5
            • 3.b4+
              • 3...Kb5
                • 4.Bd7#
      • 1...f1R
        • 2.Rd4+
          • 2...Kc5
            • 3.b4+
              • 3...Kb5
                • 4.Bd7#

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).