Problem Display
PID: 214141 (8/P7/8/1k1P4/1pN1N3/1K6/8/8 w - - 0 1)

Torngren, Pehr Hendrik

L'Echiquier, 1928

8/P7/8/1k1P4/1pN1N3/1K6/8/8

#3

5 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Ka6
      • 2.a8Q+
        • 2...Kb5
          • 3.Qc6#
          • 3.Qb7#
          • 3.Qa4#
          • 3.Qa5#
  • Tries
    • 1.Sed2?
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qc6#
            • 3.Qa5#
      • 1...Kc5!
    • 1.Sf2?
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qc6#
            • 3.Qa5#
      • 1...Kc5!
    • 1.Sg3?
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qc6#
            • 3.Qa5#
      • 1...Kc5!
    • 1.Sg5?
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qc6#
            • 3.Qa5#
      • 1...Kc5!
    • 1.Sed6+?
      • 1...Ka6
        • 2.a8Q#
        • 2.a8R#
      • 1...Kc5!
    • 1.Sf6?
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qc6#
            • 3.Qa5#
      • 1...Kc5!
  • Keys
    • 1.d6!
      • 1...Ka6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qb7#
            • 3.Qa4#
      • 1...Kc6
        • 2.a8Q+
          • 2...Kb5
            • 3.Qb7#
            • 3.Qa4#
          • 2...Kd7
            • 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).