Problem Display
PID: 30433 (1NBK4/8/3k1p1p/p1R2p2/N1p5/pp4p1/r2b4/1nB2n1R w - - 0 1)

Liebeck, Professor Hans

The Problemist, 1985

1NBK4/8/3k1p1p/p1R2p2/N1p5/pp4p1/r2b4/1nB2n1R

#3

7 + 13


SOLUTION


  • SOUND
  • Sets
    • 1...Be1
      • 2.Bf4#
    • 1...Bb4
      • 2.Bf4#
    • 1...Bf4
      • 2.Bxf4#
    • 1...f4
      • 2.Rhh5
        • threat
          • 3.Rcd5#
          • 3.Rc6#
          • 3.Rhd5#
        • 2...f5
          • 3.Rxh6#
  • Tries
    • 1.Rxh6?
      • threat
        • 2.Rxf6#
      • 1...Bc3
        • 2.Bf4+
          • 2...Be5
            • 3.Bxe5#
            • 3.Rxf6#
      • 1...Bg5
        • 2.Bf4+
          • 2...Bxf4
            • 3.Rxf6#
      • 1...Bxh6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sd4
          • threat
            • 3.Sb5#
            • 3.Sxf5#
      • 1...Sc3
        • 2.Sxa5
          • threat
            • 3.Sxc4#
            • 3.Sb7#
      • 1...Bc3
        • 2.Sa7
          • threat
            • 3.Sb5#
      • 1...Be3
        • 2.Se7
          • threat
            • 3.Sxf5#
            • 3.Rd5#
          • 2...Bxc5
            • 3.Bf4#
      • 1...Se3
        • 2.Se5
          • threat
            • 3.Sf7#
          • 2...fxe5
            • 3.Rxh6#
      • 1...f4
        • 2.Sd4
          • threat
            • 3.Sb5#
            • 3.Sf5#
        • 2.Se5
          • threat
            • 3.Sxc4#
            • 3.Sf7#
          • 2...fxe5
            • 3.Rxh6#

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).