Problem Display
PID: 207777 (3R4/8/2Q3P1/4P3/2K2k2/5P2/8/8 w - - 0 1)

Ivanov, Valery Alekseevich

3rd Comm., Zadachi i Etyudi, 2018

3R4/8/2Q3P1/4P3/2K2k2/5P2/8/8

#3

6 + 1


SOLUTION


  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qf6#
    • 1...Kg5
      • 2.Qf6+
        • 2...Kh5
          • 3.Rh8#
        • 2...Kh6
          • 3.Rh8#
  • Tries
    • 1.Kd3?
      • 1...Kxe5
        • 2.Ke3
          • 2...Kf5
            • 3.Rd5#
      • 1...Kg5
        • 2.Qf6+
          • 2...Kh5
            • 3.Rh8#
          • 2...Kh6
            • 3.Rh8#
      • 1...Kg3!
    • 1.Kd4?
      • 1...Kg5
        • 2.Qf6+
          • 2...Kh5
            • 3.Rh8#
          • 2...Kh6
            • 3.Rh8#
      • 1...Kg3!
    • 1.Qe4+?
      • 1...Kg3
        • 2.Rd2
          • 2...Kh3
            • 3.Qg4#
      • 1...Kg5!
  • Keys
    • 1.Rd2!
      • 1...Ke3
        • 2.Rg2
          • 2...Kf4
            • 3.Qe4#
      • 1...Kg3
        • 2.Qe4
          • 2...Kh3
            • 3.Qg4#
      • 1...Kxe5
        • 2.Qd6+
          • 2...Kf5
            • 3.Rd5#
      • 1...Kg5
        • 2.Qf6+
          • 2...Kh5
            • 3.Rh2#
          • 2...Kh6
            • 3.Rh2#

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).