Problem Display
PID: 133230 (r7/2PPNkB1/3P3P/5B2/8/P7/8/1K6 w - - 0 1)

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

Deutsche Schachzeitung, 1909

r7/2PPNkB1/3P3P/5B2/8/P7/8/1K6

#3

9 + 2


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Sets
    • 1...Rc8
      • 2.dxc8B
        • 2...Ke8
          • 3.Bg6#
    • 1...Rd8
      • 2.cxd8S#
  • Keys
    • 1.Sc8!
      • threat
        • 2.d8S+
          • 2...Ke8
            • 3.d7#
          • 2...Kg8
            • 3.Se7#
      • 1...Rb8+
        • 2.cxb8Q
          • 2...Kg8
            • 3.Qb3#
      • 1...Kg8
        • 2.d8Q+
          • 2...Kf7
            • 3.Qf8#
        • 2.d8R+
          • 2...Kf7
            • 3.Rf8#
      • 1...Rxc8
        • 2.dxc8B
          • 2...Ke8
            • 3.Bg6#
          • 2...Kg8
            • 3.Bce6#

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).