Problem Display
PID: 165557 (8/8/8/1k3N2/4P3/2PK4/8/Q7 w - - 0 1)

Preiswerk, Walther Edouard

Schweizerische Schachzeitung, 1920

8/8/8/1k3N2/4P3/2PK4/8/Q7

#3

5 + 1


16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949
14986 White-Hume Collection 2017

SOLUTION


  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qa7
        • 2...Kb5
          • 3.Sd4#
  • Tries
    • 1.Qa3?
      • 1...Kc6
        • 2.Qa7
          • 2...Kb5
            • 3.Sd4#
      • 1...Kb6!
    • 1.Qa5+?
      • 1...Kc6
        • 2.Qa7
          • 2...Kb5
            • 3.Sd4#
      • 1...Kxa5!
    • 1.Qa6+?
      • 1...Kc5
        • 2.e5
          • 2...Kd5
            • 3.Qd6#
      • 1...Kxa6!
  • Keys
    • 1.Qg1!
      • 1...Ka4
        • 2.Kc4
          • threat
            • 3.Qa7#
            • 3.Qa1#
          • 2...Ka3
            • 3.Qa1#
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka5
        • 2.Qa7+
          • 2...Kb5
            • 3.Sd4#
      • 1...Ka6
        • 2.Sd6
          • 2...Ka5
            • 3.Qa7#
      • 1...Kc6
        • 2.Qa7
          • 2...Kb5
            • 3.Sd4#

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).