Problem Display
PID: 195324 (4K3/1p6/2p4Q/1k6/4P3/8/4P3/R7 w - - 0 1)

Lindgren, Frithiof

1st Prize, Eskilstuna Kuriren, 1919

4K3/1p6/2p4Q/1k6/4P3/8/4P3/R7

#3

5 + 3


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Tries
    • 1.Qd6?
      • threat
        • 2.Rb1+
          • 2...Ka4
            • 3.Qb4#
          • 2...Kc4
            • 3.Qb4#
          • 2...Ka5
            • 3.Qa3#
          • 2...Ka6
            • 3.Qa3#
      • 1...Kc4
        • 2.Rb1
          • threat
            • 3.Qb4#
          • 2...Kc3
            • 3.Qd3#
          • 2...c5
            • 3.Qd3#
      • 1...Kb6
        • 2.Ra4
          • 2...Kb5
            • 3.Qb4#
      • 1...b6
        • 2.Qd4
          • 2...c5
            • 3.Qa4#
      • 1...c5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Rb1+
          • 2...Ka4
            • 3.Qb4#
            • 3.Qa2#
          • 2...Kc4
            • 3.Qb4#
          • 2...Kc5
            • 3.Qb4#
          • 2...Ka6
            • 3.Qa2#
      • 1...Kc4
        • 2.Rb1
          • threat
            • 3.Qb4#
          • 2...Kc5
            • 3.Qb4#
          • 2...c5
            • 3.Qd3#
      • 1...Kc5
        • 2.Ra4
          • threat
            • 3.Qb4#
          • 2...Kb5
            • 3.Qb4#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qa5#
          • 2...b5
            • 3.Qd4#
      • 1...c5
        • 2.Rb1+
          • 2...Ka4
            • 3.Qa2#
          • 2...Kc4
            • 3.Qd3#
          • 2...Ka6
            • 3.Qa2#
          • 2...Kc6
            • 3.Qd7#
      • 1...b6
        • 2.Qd4
          • 2...c5
            • 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).