Problem Display
PID: 273202 (3R4/2B5/QPp1Np2/prp1pP2/B1k1P1Rp/7P/N5K1/7n w - - 0 1)

Russell, HA

The Problemist, 1931

3R4/2B5/QPp1Np2/prp1pP2/B1k1P1Rp/7P/N5K1/7n

#3

12 + 9


SOLUTION


  • SOUND
  • Tries
    • 1.Sg7?
      • 1...Sf2
        • 2.Qc8
          • threat
            • 3.Qe6#
      • 1...Sg3!
    • 1.Sf8?
      • 1...Sf2
        • 2.Qc8
          • threat
            • 3.Qe6#
      • 1...Sg3!
    • 1.Rd5?
      • threat
        • 2.Kxh1
          • 2...cxd5
            • 3.Qxb5#
      • 1...Sf2
        • 2.Kxf2
          • 2...cxd5
            • 3.Qxb5#
      • 1...Sg3!
    • 1.b7?
      • 1...Sf2
        • 2.Qxc6
          • threat
            • 3.Qxb5#
            • 3.Qd5#
      • 1...Sg3!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3
          • threat
            • 3.Sb2#
      • 1...exf4
        • 2.Kxh1
          • 2...f3
            • 3.e5#
      • 1...Sf2
        • 2.Qc8
          • threat
            • 3.Qe6#

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).