Problem Display
PID: 162221 (4R3/K7/2ppPp2/1p1k4/3pn3/1PpNpBB1/P1P4P/4Q3 w - - 0 1)

Narayanan, Chithathuz Gopatan Sathya

The Problemist, 2015

4R3/K7/2ppPp2/1p1k4/3pn3/1PpNpBB1/P1P4P/4Q3

#3

11 + 9


SOLUTION


  • SOUND
  • Tries
    • 1.Kb6?
      • threat
        • 2.Sb4#
      • 1...b4
        • 2.Sxb4#
      • 1...c5!
    • 1.Qf1?
      • 1...c5
        • 2.Sb4+
          • 2...cxb4
            • 3.Qxb5#
      • 1...b4
        • 2.Sxb4+
          • 2...Kc5
            • 3.Qc4#
      • 1...f5
        • 2.Bxe4+
          • 2...Kxe4
            • 3.Qg2#
            • 3.Qh1#
          • 2...fxe4
            • 3.Qf5#
      • 1...e2!
    • 1.Qxe3?
      • threat
        • 2.Bxe4#
        • 2.Qxe4#
      • 1...f5
        • 2.Bxe4+
          • 2...fxe4
            • 3.Qg5#
        • 2.Qf4
          • threat
            • 3.Qxd6#
            • 3.Qxf5#
      • 1...dxe3!
  • Keys
    • 1.Qe2!
      • 1...c5
        • 2.Sb4+
          • 2...cxb4
            • 3.Qxb5#
      • 1...b4
        • 2.Sxb4+
          • 2...Kc5
            • 3.Qc4#
      • 1...f5
        • 2.Bxe4+
          • 2...Kxe4
            • 3.Qg2#
          • 2...fxe4
            • 3.Qh5#

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).