Problem Display
PID: 197310 (8/8/7K/1QP5/5k2/4N2p/7N/8 w - - 0 1)

Kolpakov, Viktor Sergeevich

Surkov, Valery Albertovich

Zadachi i Etyudi, 1996

8/8/7K/1QP5/5k2/4N2p/7N/8

#3

5 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Seg4?
      • threat
        • 2.Qe2
          • threat
            • 3.Qf3#
            • 3.Qe5#
          • 2...Kg3
            • 3.Qf2#
          • 2...Kf5
            • 3.Qe5#
      • 1...Kg3
        • 2.Qf1
          • 2...Kh4
            • 3.Qe1#
            • 3.Qf2#
        • 2.Qe2
          • threat
            • 3.Qf2#
          • 2...Kf4
            • 3.Qf3#
            • 3.Qe5#
          • 2...Kh4
            • 3.Qe1#
            • 3.Qf2#
        • 2.Qb2
          • threat
            • 3.Qf2#
          • 2...Kf4
            • 3.Qe5#
          • 2...Kh4
            • 3.Qf2#
      • 1...Kf5
        • 2.Qe2
          • 2...Kf4
            • 3.Qf3#
            • 3.Qe5#
        • 2.Qc6
          • 2...Kf4
            • 3.Qf3#
        • 2.Qe8
          • 2...Kf4
            • 3.Qe5#
      • 1...Ke4!
  • Keys
    • 1.Sc4!
      • 1...Kg3
        • 2.Qb2
          • 2...Kf4
            • 3.Qe5#
          • 2...Kh4
            • 3.Qf2#
      • 1...Ke4
        • 2.Qd7
          • 2...Kf4
            • 3.Qg4#
      • 1...Kf5
        • 2.Qc6
          • 2...Kf4
            • 3.Qf3#

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).