Problem Display
PID: 149300 (1K6/1b1pN3/R2p1kNB/2p1p3/2B5/4R3/n7/b2r4 w - - 0 1)

Alaikov, Venelin

3rd HM., Themes-64, 1985

1K6/1b1pN3/R2p1kNB/2p1p3/2B5/4R3/n7/b2r4

#4

7 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Rg3!
      • threat
        • 2.Sg8+
          • 2...Kf5
            • 3.Sh4+
              • 3...Ke4
                • 4.Rg4#
      • 1...Rd5
        • 2.Rf3+
          • 2...Ke6
            • 3.Rxd6+
              • 3...Kxd6
                • 4.Rf6#
      • 1...Bd5
        • 2.Rxd6+
          • 2...Kf7
            • 3.Rf3+
              • 3...Ke8
                • 4.Rf8#
      • 1...Rd4
        • 2.Sg8+
          • 2...Kf5
            • 3.S6e7+
              • 3...Ke4
                • 4.Sf6#
                • 4.Re3#

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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).