Problem Display
PID: 77464 (7k/5Q2/8/3p4/2p5/8/2K2p2/5B2 w - - 0 1)

Cyrulik, Stepan Pavlovich

Zvezda, 1970

7k/5Q2/8/3p4/2p5/8/2K2p2/5B2

#3

3 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...c3
      • 2.Bd3
        • threat
          • 3.Qh7#
          • 3.Qf8#
      • 2.Qf8+
        • 2...Kh7
          • 3.Bd3#
  • Tries
    • 1.Kb1?
      • 1...c3
        • 2.Qf8+
          • 2...Kh7
            • 3.Bd3#
      • 1...d4!
    • 1.Kc1?
      • 1...c3
        • 2.Qf8+
          • 2...Kh7
            • 3.Bd3#
      • 1...d4!
    • 1.Kd1?
      • 1...c3
        • 2.Qf8+
          • 2...Kh7
            • 3.Bd3#
      • 1...d4!
    • 1.Kb2?
      • 1...d4
        • 2.Bxc4
          • threat
            • 3.Qg8#
      • 1...c3+!
    • 1.Bd3?
      • threat
        • 2.Qh7#
        • 2.Qf8#
      • 1...f1Q
        • 2.Qh7#
      • 1...f1R
        • 2.Qh7#
      • 1...cxd3+!
  • Keys
    • 1.Qg6!
      • 1...d4
        • 2.Qh6+
          • 2...Kg8
            • 3.Bxc4#
      • 1...c3
        • 2.Bd3
          • threat
            • 3.Qh7#

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).