Problem Display
PID: 157129 (1B6/6Q1/1N3p2/p1P1pk2/1b3p2/2P5/R2KN3/8 w - - 0 1)

Petrasinovic, Petrasin

Best Problems, 2007

1B6/6Q1/1N3p2/p1P1pk2/1b3p2/2P5/R2KN3/8

#3

8 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qd7#
    • 1...f3
      • 2.Sg3+
        • 2...Kf4
          • 3.Sd5#
        • 2...Ke6
          • 3.Qd7#
    • 1...e4
      • 2.Sd4#
  • Tries
    • 1.Sg3+?
      • 1...Ke6
        • 2.Qd7#
      • 1...fxg3!
    • 1.Sd4+?
      • 1...Ke4
        • 2.Qb7#
      • 1...exd4!
    • 1.Qg4+?
      • 1...Ke4
        • 2.Sg3#
      • 1...Kxg4!
  • Keys
    • 1.Ra4!
      • 1...Bxc3+
        • 2.Kxc3
          • 2...Ke6
            • 3.Qd7#
          • 2...f3
            • 3.Qg4#
          • 2...e4
            • 3.Sd4#
      • 1...Ke4
        • 2.Qg4
          • 2...f5
            • 3.Sg3#
      • 1...Bxc5
        • 2.Sg3+
          • 2...Ke6
            • 3.Qd7#
          • 2...fxg3
            • 3.Qg4#
      • 1...Ba3
        • 2.Sg3+
          • 2...Ke6
            • 3.Qd7#
          • 2...fxg3
            • 3.Qg4#
      • 1...f3
        • 2.Sg3+
          • 2...Kf4
            • 3.Sd5#
          • 2...Ke6
            • 3.Qd7#

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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).