Problem Display
PID: 240171 (K2B2nN/6Nb/2Qp3P/3pk3/5ppb/5p2/5p2/2R5 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Makaronets, Leonid

Variantim, 2011

K2B2nN/6Nb/2Qp3P/3pk3/5ppb/5p2/5p2/2R5

#3

7 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Be4
      • 2.Sf7+
        • 2...Kd4
          • 3.Qc3#
    • 1...d4
      • 2.Sf7#
  • Tries
    • 1.Sg6+?
      • 1...Kd4
        • 2.Sf5+
          • 2...Kd3
            • 3.Qc2#
          • 2...Ke4
            • 3.Qc2#
        • 2.Bb6+
          • 2...Kd3
            • 3.Qc2#
          • 2...Ke4
            • 3.Qc2#
      • 1...Ke4
        • 2.Qc2+
          • 2...Ke3
            • 3.Sf5#
          • 2...Kd4
            • 3.Sf5#
            • 3.Bb6#
      • 1...Bxg6!
    • 1.Sf7+?
      • 1...Kd4
        • 2.Bb6+
          • 2...Kd3
            • 3.Qc2#
          • 2...Ke4
            • 3.Qc2#
        • 2.Qc3+
          • 2...Ke4
            • 3.Sxd6#
      • 1...Ke4!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Qc3+
          • 2...Ke4
            • 3.Qd4#
          • 2...d4
            • 3.Qxd4#
      • 1...Ke4
        • 2.Qa4+
          • 2...Kd3
            • 3.Qc2#
          • 2...Ke5
            • 3.Qd4#
          • 2...d4
            • 3.Qxd4#
      • 1...Kf6
        • 2.Qxd6+
          • 2...Kg5
            • 3.Sf7#
      • 1...Bf6
        • 2.Sf7+
          • 2...Ke4
            • 3.Qc2#
      • 1...Be4
        • 2.Bd4+
          • 2...Kxd4
            • 3.Qc3#
      • 1...d4
        • 2.Rc5+
          • 2...Kf6
            • 3.Qxd6#
          • 2...dxc5
            • 3.Sf7#
            • 3.Bc7#
            • 3.Qe6#
          • 2...d5
            • 3.Qe6#

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).