Problem Display
PID: 117105 (7B/KQ6/4k3/p1P3pP/rp1p1p2/p3prpP/8/2Nb2b1 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Shakist, 1937

7B/KQ6/4k3/p1P3pP/rp1p1p2/p3prpP/8/2Nb2b1

#3

7 + 13


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qd5#
    • 1...Be2
      • 2.Sb3
        • threat
          • 3.Sxd4#
        • 2...Kf5
          • 3.Sxd4#
          • 3.Qd5#
        • 2...d3
          • 3.Sd4#
    • 1...Bb3
      • 2.Se2
        • threat
          • 3.Sxd4#
        • 2...Kf5
          • 3.Sxd4#
        • 2...d3
          • 3.Sd4#
  • Keys
    • 1.Kb8!
      • threat
        • 2.Kc8
          • threat
            • 3.Qd7#
          • 2...Kf5
            • 3.Qd5#
      • 1...Be2
        • 2.Sb3
          • threat
            • 3.Sxd4#
          • 2...Kf5
            • 3.Sxd4#
            • 3.Qd5#
          • 2...d3
            • 3.Sd4#
      • 1...Bb3
        • 2.Se2
          • threat
            • 3.Sxd4#
          • 2...Kf5
            • 3.Sxd4#
          • 2...d3
            • 3.Sd4#

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).