Problem Display
PID: 183926 (8/8/8/3p1Q2/1P1kN3/7K/1NP1p3/n7 w - - 0 1)

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

Schweizerische Schachzeitung, 1907

8/8/8/3p1Q2/1P1kN3/7K/1NP1p3/n7

#3

6 + 4


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...dxe4
      • 2.Qc5#
  • Tries
    • 1.Qf6+?
      • 1...Kxe4
        • 2.Kg4
          • threat
            • 3.Qf4#
          • 2...Ke3
            • 3.Qf4#
          • 2...d4
            • 3.Qe6#
      • 1...Ke3!
  • Keys
    • 1.Qf4!
      • threat
        • 2.c3#
      • 1...Sxc2
        • 2.Sc5+
          • 2...Kc3
            • 3.Sba4#
      • 1...dxe4
        • 2.Qf6+
          • 2...Ke3
            • 3.Sc4#
          • 2...Kd5
            • 3.c4#
      • 1...e1Q
        • 2.c3+
          • 2...Qxc3+
            • 3.Sg3#
      • 1...e1B
        • 2.c3+
          • 2...Bxc3
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sg3#
            • 3.Sc5#
            • 3.Sg5#
            • 3.Sd6#
            • 3.Sf6#

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).