Problem Display
PID: 86774 (7Q/2K5/8/5p2/4k3/4N3/B7/6B1 w - - 0 1)

Chepizhni, Viktor Ivanovich

Vecherni Magadan, 1997

7Q/2K5/8/5p2/4k3/4N3/B7/6B1

#3

5 + 2


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Bb1+?
      • 1...Kf3
        • 2.Qh2
          • 2...f4
            • 3.Qf2#
            • 3.Qg2#
        • 2.Qh4
          • threat
            • 3.Qf2#
          • 2...Ke2
            • 3.Qf2#
      • 1...Kf4!
    • 1.Qh5?
      • threat
        • 2.Qxf5+
          • 2...Kd4
            • 3.Sd1#
            • 3.Sd5#
      • 1...Kd4
        • 2.Qe2
          • threat
            • 3.Sd1#
            • 3.Sd5#
          • 2...Kc3
            • 3.Sd5#
          • 2...Ke4
            • 3.Sg2#
            • 3.Sd5#
          • 2...Kc5
            • 3.Sc2#
            • 3.Sd5#
            • 3.Qc4#
          • 2...Ke5
            • 3.Sd5#
      • 1...Kf4
        • 2.Qxf5+
          • 2...Kg3
            • 3.Qg4#
      • 1...Ke5
        • 2.Sd5
          • threat
            • 3.Qe2#
            • 3.Qe8#
          • 2...Ke4
            • 3.Qe2#
          • 2...Ke6
            • 3.Qe8#
        • 2.Qxf5+
          • 2...Kd4
            • 3.Sd1#
            • 3.Sd5#
      • 1...Kd3!
  • Keys
    • 1.Qh2!
      • 1...Kd3
        • 2.Qc2+
          • 2...Kd4
            • 3.Sg4#
      • 1...Kd4
        • 2.Qe2
          • threat
            • 3.Sd1#
            • 3.Sd5#
          • 2...Kc3
            • 3.Sd5#
          • 2...Ke4
            • 3.Sg2#
            • 3.Sd5#
          • 2...Kc5
            • 3.Sc2#
            • 3.Sd5#
            • 3.Qc4#
          • 2...Ke5
            • 3.Sd5#
      • 1...f4
        • 2.Qc2+
          • 2...Kf3
            • 3.Qg2#
          • 2...Kd4
            • 3.Sg4#
          • 2...Ke5
            • 3.Sg4#

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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).