Problem Display
PID: 192308 (8/8/8/k7/6Q1/N7/N7/7K w - - 0 1)

Laue, Kurt

Deutsche Schachzeitung, 1917

8/8/8/k7/6Q1/N7/N7/7K

#3

4 + 1


6490 yacpdb 2019

SOLUTION


  • COOKED
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qb5#
      • 1...Ka4
        • 2.Qd3
          • 2...Ka5
            • 3.Qb5#
        • 2.Qb2
          • 2...Ka5
            • 3.Qb5#
        • 2.Qe3
          • 2...Ka5
            • 3.Qa7#
      • 1...Kb6!
    • 1.Qg1?
      • threat
        • 2.Qa7#
      • 1...Ka4
        • 2.Qe3
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka6!
    • 1.Qg3?
      • threat
        • 2.Qd6
          • 2...Ka4
            • 3.Qb4#
      • 1...Ka4
        • 2.Qd3
          • 2...Ka5
            • 3.Qb5#
        • 2.Qe3
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka6
        • 2.Qb8
          • 2...Ka5
            • 3.Qa7#
            • 3.Qb5#
      • 1...Kb6!
    • 1.Qf4?
      • threat
        • 2.Qd6
          • 2...Ka4
            • 3.Qb4#
      • 1...Ka6
        • 2.Qb8
          • 2...Ka5
            • 3.Qa7#
            • 3.Qb5#
      • 1...Kb6!
  • Keys
    • 1.Qe6!
      • 1...Ka4
        • 2.Qe3
          • 2...Ka5
            • 3.Qa7#
    • 1.Qb4+!
      • 1...Ka6
        • 2.Qb8
          • 2...Ka5
            • 3.Qa7#
            • 3.Qb5#
    • 1.Qg6!
      • 1...Ka4
        • 2.Qd3
          • 2...Ka5
            • 3.Qb5#

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).