Problem Display
PID: 162101 (5rn1/p3p2p/1bP1b3/2p2k1B/K1p2B2/4pQ2/2n1P3/8 w - - 0 1)

Kriuckov, Sergey Petrovic

Zadachi i Etyudi, 1928

5rn1/p3p2p/1bP1b3/2p2k1B/K1p2B2/4pQ2/2n1P3/8

#3

6 + 12


SOLUTION


  • SOUND
  • Tries
    • 1.Qe4+?
      • 1...Kf6
        • 2.Qe5#
      • 1...Kxe4!
    • 1.Qg4+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Ke4!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qg5+
          • 2...Ke4
            • 3.Qe5#
      • 1...Ke4
        • 2.Bf3+
          • 2...Kd4
            • 3.Be5#
          • 2...Kf5
            • 3.Qg5#
      • 1...Bd5
        • 2.Qg5+
          • 2...Ke4
            • 3.Qe5#
          • 2...Ke6
            • 3.Qe5#
      • 1...Bd7
        • 2.Qg5+
          • 2...Ke4
            • 3.Qe5#
          • 2...Ke6
            • 3.Qe5#
      • 1...Bf7
        • 2.Qg5+
          • 2...Ke4
            • 3.Qe5#
          • 2...Ke6
            • 3.Bg4#
            • 3.Qe5#
      • 1...Bc8
        • 2.Qg5+
          • 2...Ke4
            • 3.Qe5#
          • 2...Ke6
            • 3.Qe5#
      • 1...Bc7
        • 2.Bxc7
          • threat
            • 3.Qf4#
            • 3.Qe5#
          • 2...Ke4
            • 3.Qe5#
          • 2...Kf6
            • 3.Qe5#
      • 1...h6
        • 2.Bg6+
          • 2...Kf6
            • 3.Be5#

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).