Problem Display
PID: 81265 (2Q5/k7/8/3n4/N4p2/5K2/8/8 w - - 0 1)

Asplund, Per Ivan Rune

Tidskrift for Schack, 1964

2Q5/k7/8/3n4/N4p2/5K2/8/8

#3

3 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Sc3
      • 2.Qc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
    • 1...Se3
      • 2.Qc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
    • 1...Sb4
      • 2.Qc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
    • 1...Sb6
      • 2.Qc7+
        • 2...Ka6
          • 3.Qxb6#
        • 2...Ka8
          • 3.Sxb6#
    • 1...Sf6
      • 2.Qc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
    • 1...Sc7
      • 2.Qxc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
    • 1...Se7
      • 2.Qc7+
        • 2...Ka6
          • 3.Qb6#
        • 2...Ka8
          • 3.Sb6#
  • Tries
    • 1.Kf2?
      • 1...Sc3
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Se3
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Sb4
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Sb6
        • 2.Qc7+
          • 2...Ka6
            • 3.Qxb6#
          • 2...Ka8
            • 3.Sxb6#
      • 1...Sf6
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Sc7
        • 2.Qxc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Se7
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...f3!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Sc5
          • threat
            • 3.Qb7#
          • 2...Kb8
            • 3.Qb7#
      • 1...Kb8
        • 2.Sc5
          • threat
            • 3.Qb7#
          • 2...Ka7
            • 3.Qb7#
      • 1...Sb4
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#
      • 1...Se7
        • 2.Qc7+
          • 2...Ka6
            • 3.Qb6#
          • 2...Ka8
            • 3.Sb6#

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).