Problem Display
PID: 199051 (1K6/8/2k5/4p3/4N3/2P5/1P4P1/5Q2 w - - 0 1)

Hansen, Lorenz

2nd HM., Good Companions, 1921

1K6/8/2k5/4p3/4N3/2P5/1P4P1/5Q2

#3

6 + 2


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qf7+
        • 2...Kxe4
          • 3.Qf3#
        • 2...Kc6
          • 3.Qb7#
  • Tries
    • 1.Kc8?
      • 1...Kd5
        • 2.Kd7
          • 2...Kxe4
            • 3.Qf3#
        • 2.Qf7+
          • 2...Kxe4
            • 3.Qf3#
          • 2...Kc6
            • 3.Qb7#
      • 1...Kb6!
    • 1.Qc4+?
      • 1...Kb6
        • 2.Sd6
          • threat
            • 3.Qb5#
          • 2...Ka5
            • 3.Qb5#
        • 2.Qb4+
          • 2...Ka6
            • 3.Sc5#
          • 2...Kc6
            • 3.Qb7#
      • 1...Kd7!
    • 1.Qa6+?
      • 1...Kd5
        • 2.Sf6+
          • 2...Kc5
            • 3.b4#
      • 1...Kd7!
    • 1.c4?
      • 1...Kd7
        • 2.Qf8
          • 2...Kc6
            • 3.Qd6#
          • 2...Ke6
            • 3.Sc5#
      • 1...Kb6!
  • Keys
    • 1.Qf8!
      • 1...Kb5
        • 2.Qb4+
          • 2...Ka6
            • 3.Sc5#
          • 2...Kc6
            • 3.Qb7#
      • 1...Kd5
        • 2.Qf7+
          • 2...Kxe4
            • 3.Qf3#
          • 2...Kc6
            • 3.Qb7#
      • 1...Kb6
        • 2.Qb4+
          • 2...Ka6
            • 3.Sc5#
          • 2...Kc6
            • 3.Qb7#
      • 1...Kd7
        • 2.c4
          • 2...Kc6
            • 3.Qd6#
          • 2...Ke6
            • 3.Sc5#

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).