Problem Display
PID: 258160 (1k1K4/ppN5/8/8/3p4/3p4/1B6/1Q6 w - - 0 1)

Lazareva, Yana

Astafyeva-30 JT (Kudesnik), 2021

1k1K4/ppN5/8/8/3p4/3p4/1B6/1Q6

#3

4 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...b5
      • 2.Qh1
        • threat
          • 3.Sa6#
          • 3.Qa8#
    • 1...b6
      • 2.Qh1
        • threat
          • 3.Sa6#
          • 3.Qa8#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qc1
          • threat
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
      • 1...Ka8
        • 2.Qc1
          • threat
            • 3.Qc8#
          • 2...Kb8
            • 3.Qc8#
      • 1...b6
        • 2.Qc1
          • threat
            • 3.Qc8#
          • 2...Kb7
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
      • 1...d2
        • 2.Qc2
          • threat
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
        • 2.Qf5
          • threat
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
      • 1...a6!
    • 1.Sa6+?
      • 1...Ka8
        • 2.Kc8
          • threat
            • 3.Sc7#
          • 2...bxa6
            • 3.Qh1#
        • 2.Qc1
          • threat
            • 3.Qc8#
      • 1...bxa6!
    • 1.Qc1?
      • threat
        • 2.Sb5
          • threat
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
        • 2.Sa6+
          • 2...Ka8
            • 3.Qc8#
          • 2...bxa6
            • 3.Qc8#
      • 1...a5
        • 2.Sb5
          • threat
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
      • 1...b5
        • 2.Qh1
          • threat
            • 3.Sa6#
            • 3.Qa8#
        • 2.Qc5
          • threat
            • 3.Qxb5#
          • 2...Kb7
            • 3.Qxb5#
          • 2...b4
            • 3.Qxb4#
            • 3.Qb5#
          • 2...a5
            • 3.Qb6#
          • 2...a6
            • 3.Qb6#
        • 2.Qc6
          • threat
            • 3.Sa6#
            • 3.Qxb5#
            • 3.Qa8#
      • 1...b6
        • 2.Sb5
          • threat
            • 3.Qc8#
          • 2...Kb7
            • 3.Qc8#
          • 2...Ka8
            • 3.Qc8#
        • 2.Sa6+
          • 2...Kb7
            • 3.Qc8#
          • 2...Ka8
            • 3.Qh1#
            • 3.Qc6#
            • 3.Qc8#
        • 2.Qh1
          • threat
            • 3.Sa6#
            • 3.Qa8#
        • 2.Qc6
          • threat
            • 3.Sa6#
            • 3.Qa8#
      • 1...d2
        • 2.Sa6+
          • 2...Ka8
            • 3.Qc8#
          • 2...bxa6
            • 3.Qc8#
      • 1...a6!
  • Keys
    • 1.Bxd4!
      • 1...b6
        • 2.Qh1
          • threat
            • 3.Sa6#
            • 3.Qa8#
      • 1...d2
        • 2.Qf5
          • threat
            • 3.Qc8#
      • 1...a5
        • 2.Qb6
          • threat
            • 3.Qa7#
      • 1...a6
        • 2.Qb6
          • threat
            • 3.Qa7#

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).