Problem Display
PID: 24595 (8/1Bnp4/7Q/8/4R2p/4p1p1/4N2p/3K3k w - - 0 1)

Gold, Samuel

Source?, 1909

8/1Bnp4/7Q/8/4R2p/4p1p1/4N2p/3K3k

#3

5 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...g2
      • 2.Rxh4
        • threat
          • 3.Rxh2#
  • Tries
    • 1.Rf4+?
      • 1...Sd5
        • 2.Bxd5+
          • 2...g2
            • 3.Rf1#
      • 1...d5!
    • 1.Rg4+?
      • 1...Sd5
        • 2.Bxd5+
          • 2...g2
            • 3.Bxg2#
      • 1...d5!
    • 1.Rxh4+?
      • 1...Sd5
        • 2.Bxd5+
          • 2...g2
            • 3.Rxh2#
        • 2.Rxh2+
          • 2...gxh2
            • 3.Bxd5#
        • 2.Qf4
          • threat
            • 3.Qf1#
          • 2...Kg2
            • 3.Bxd5#
          • 2...g2
            • 3.Rxh2#
            • 3.Qxh2#
      • 1...d5!
    • 1.Qf8?
      • threat
        • 2.Qf1#
      • 1...Kg2
        • 2.Qf1+
          • 2...Kxf1
            • 3.Rf4#
        • 2.Qf3+
          • 2...Kxf3
            • 3.Rf4#
          • 2...Kh3
            • 3.Sf4#
      • 1...g2!
    • 1.Qf6?
      • threat
        • 2.Qf1#
      • 1...Kg2
        • 2.Qf1+
          • 2...Kxf1
            • 3.Rf4#
        • 2.Qf3+
          • 2...Kxf3
            • 3.Rf4#
          • 2...Kh3
            • 3.Sf4#
      • 1...g2!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qf1#
      • 1...Kg2
        • 2.Qf1+
          • 2...Kxf1
            • 3.Rf4#
        • 2.Qf3+
          • 2...Kxf3
            • 3.Rf4#
          • 2...Kh3
            • 3.Sf4#
      • 1...g2
        • 2.Qxh2+
          • 2...Kxh2
            • 3.Rxh4#

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).