Problem Display
PID: 38311 (K7/8/2p1p3/2p2k2/4R2Q/6P1/2P3P1/8 w - - 0 1)

Hirst, CA

Southern Daily Post, 1911

K7/8/2p1p3/2p2k2/4R2Q/6P1/2P3P1/8

#3

6 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.Rf4+?
      • 1...Ke5
        • 2.Qd8
          • 2...c4
            • 3.Qd4#
      • 1...Kg6!
    • 1.Rg4?
      • threat
        • 2.Qg5#
      • 1...e5
        • 2.Qh6
          • threat
            • 3.Qg6#
          • 2...Kxg4
            • 3.Qg6#
          • 2...e4
            • 3.Rg5#
      • 1...Ke5!
    • 1.Re5+?
      • 1...Kxe5
        • 2.Qf4+
          • 2...Kd5
            • 3.c4#
      • 1...Kg6!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Qf4+
          • 2...Kd5
            • 3.c4#
      • 1...Kxg5!
    • 1.Qf6+?
      • 1...Kxe4
        • 2.Qf4+
          • 2...Kd5
            • 3.c4#
      • 1...Kxf6!
    • 1.Qh7+?
      • 1...Kg5
        • 2.Rxe6
          • threat
            • 3.Qg6#
          • 2...Kg4
            • 3.Qg6#
        • 2.Qg7+
          • 2...Kf5
            • 3.Rf4#
            • 3.Re5#
          • 2...Kh5
            • 3.Rh4#
            • 3.Re5#
      • 1...Kf6!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Rxe6
          • threat
            • 3.Qg6#
          • 2...Kg4
            • 3.Qg6#
        • 2.Qxe6+
          • 2...Kg5
            • 3.Re5#
      • 1...Kxe4
        • 2.Qf4+
          • 2...Kd5
            • 3.c4#
      • 1...e5
        • 2.Rg4
          • threat
            • 3.Qg6#
          • 2...Kxg4
            • 3.Qg6#
          • 2...e4
            • 3.Rg5#

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).