Problem Display
PID: 269265 (8/7Q/1kPK4/5P2/8/1P6/8/8 w - - 0 1)

Petrasinovic, Petrasin

Comm., Seven Chess Notes, 2022

8/7Q/1kPK4/5P2/8/1P6/8/8

#3

5 + 1


SOLUTION


  • SOUND
  • Sets
    • 1...Ka6
      • 2.Kc5
        • 2...Ka5
          • 3.Qa7#
  • Tries
    • 1.Qg7?
      • 1...Ka5
        • 2.Kc5
          • 2...Ka6
            • 3.Qa1#
      • 1...Ka6
        • 2.Kc5
          • 2...Ka5
            • 3.Qa1#
            • 3.Qa7#
      • 1...Kb5!
    • 1.b4?
      • threat
        • 2.Qb7#
      • 1...Ka6
        • 2.Qb7#
      • 1...Kb5!
  • Keys
    • 1.Qh4!
      • 1...Ka5
        • 2.Kc5
          • 2...Ka6
            • 3.Qa4#
      • 1...Kb5
        • 2.Kc7
          • 2...Ka5
            • 3.Qa4#
          • 2...Kc5
            • 3.Qc4#
          • 2...Ka6
            • 3.Qa4#
      • 1...Ka6
        • 2.Qb4
          • 2...Ka7
            • 3.Qb7#
      • 1...Ka7
        • 2.Kc7
          • threat
            • 3.Qa4#
          • 2...Ka6
            • 3.Qa4#
          • 2...Ka8
            • 3.Qa4#

FEATURES


NOT CLASSIFIED


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).