Problem Display
PID: 247592 (8/4p3/2PPp3/KNpPQn2/ppkpP1p1/6p1/nRP5/4N3 w - - 0 1)

Grinblat, Arieh

Zadachi i Etyudi, 2003

8/4p3/2PPp3/KNpPQn2/ppkpP1p1/6p1/nRP5/4N3

#3

10 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...d3
      • 2.cxd3#
    • 1...exd5
      • 2.Qxd5#
  • Tries
    • 1.Rxb4+?
      • 1...cxb4
        • 2.exf5
          • threat
            • 3.Qxd4#
          • 2...Kc5
            • 3.Qxd4#
          • 2...d3
            • 3.Qd4#
        • 2.c7
          • threat
            • 3.c8Q#
            • 3.c8R#
          • 2...Kc5
            • 3.c8Q#
            • 3.c8R#
          • 2...Sxd6
            • 3.Qxd4#
      • 1...Sxb4!
    • 1.c7?
      • threat
        • 2.c8S
          • threat
            • 3.Sb6#
      • 1...Se3
        • 2.Qxd4+
          • 2...cxd4
            • 3.c8Q#
            • 3.c8R#
      • 1...Sc1
        • 2.Rxb4+
          • 2...cxb4
            • 3.c8Q#
            • 3.c8R#
      • 1...Sc3
        • 2.Rxb4+
          • 2...cxb4
            • 3.c8Q#
            • 3.c8R#
      • 1...Sxd6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.dxe6
          • threat
            • 3.Qxc5#
            • 3.Qd5#
      • 1...Sxd6
        • 2.Rxb4+
          • 2...Sxb4
            • 3.Sb2#
          • 2...cxb4
            • 3.Qxd4#
      • 1...exd6
        • 2.Qxd6
          • threat
            • 3.Se5#
            • 3.Qxc5#
      • 1...Sc1
        • 2.Qxd4+
          • 2...Sxd4
            • 3.Se5#
          • 2...cxd4
            • 3.Rxb4#
      • 1...Sc3
        • 2.Qxd4+
          • 2...Sxd4
            • 3.Se5#
          • 2...cxd4
            • 3.Rxb4#
      • 1...Se3
        • 2.Rxb4+
          • 2...Sxb4
            • 3.Sb2#
          • 2...cxb4
            • 3.Qxd4#
      • 1...b3
        • 2.Rxb3
          • threat
            • 3.Sb2#
            • 3.Sa3#
          • 2...a3
            • 3.Sxa3#

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).