Problem Display
PID: 134289 (8/4p1pR/1KB5/p2rp3/P3k1P1/6P1/4P3/6B1 w - - 0 1)

Crusats, Joaquim

Degenkolbe, Mirko

Dowd, Steven B

Prize, Fiedler-50 JT, 2009

8/4p1pR/1KB5/p2rp3/P3k1P1/6P1/4P3/6B1

#4

8 + 6


56 The Problemist 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Ba8!
      • threat
        • 2.Rh8
          • threat
            • 3.Rc8
              • threat
                • 4.Rc4#
          • 2...g5
            • 3.Rc8
              • 3...e6
                • 4.Rc4#
      • 1...e6
        • 2.Ka7
          • 2...g5
            • 3.Rb7
              • 3...Rd1
                • 4.Rb4#
              • 3...Rd2
                • 4.Rb4#
              • 3...Rd3
                • 4.Rb4#
              • 3...Rd4
                • 4.Rb4#
              • 3...Rb5
                • 4.Rxb5#
              • 3...Rc5
                • 4.Rb4#
              • 3...Rd6
                • 4.Rb4#
              • 3...Rd7
                • 4.Rxd7#
              • 3...Rd8
                • 4.Rb4#
          • 2...g6
            • 3.Rc7
              • 3...g5
                • 4.Rc4#
      • 1...g5
        • 2.Ka7
          • 2...e6
            • 3.Rb7
              • 3...Rd1
                • 4.Rb4#
              • 3...Rd2
                • 4.Rb4#
              • 3...Rd3
                • 4.Rb4#
              • 3...Rd4
                • 4.Rb4#
              • 3...Rb5
                • 4.Rxb5#
              • 3...Rc5
                • 4.Rb4#
              • 3...Rd6
                • 4.Rb4#
              • 3...Rd7
                • 4.Rxd7#
              • 3...Rd8
                • 4.Rb4#
      • 1...g6
        • 2.Rh8
          • threat
            • 3.Rc8
              • threat
                • 4.Rc4#
          • 2...g5
            • 3.Rc8
              • 3...e6
                • 4.Rc4#
          • 2...e6
            • 3.Rc8
              • 3...g5
                • 4.Rc4#

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).