Problem Display
PID: 129141 (8/8/5p2/6p1/4Q3/3K4/4N1r1/7k w - - 0 1)

Rezvov, Nikolai (Mikola) Vasilievich

Probl. Prob., 1995

8/8/5p2/6p1/4Q3/3K4/4N1r1/7k

#3

3 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Kh2
      • 2.Qh7#
    • 1...g4
      • 2.Sf4
        • threat
          • 3.Qxg2#
        • 2...Kg1
          • 3.Qxg2#
        • 2...Kh2
          • 3.Qxg2#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qxg2#
      • 1...Kg1
        • 2.Qxg2#
      • 1...Kh2
        • 2.Qxg2#
      • 1...gxf4!
    • 1.Qb7?
      • 1...g4
        • 2.Sf4
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kh2
            • 3.Qxg2#
      • 1...f5!
  • Keys
    • 1.Qa8!
      • 1...f5
        • 2.Qa1+
          • 2...Kh2
            • 3.Qh8#
          • 2...Rg1
            • 3.Qxg1#
      • 1...g4
        • 2.Sf4
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kh2
            • 3.Qxg2#

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).