Problem Display
PID: 159647 (4K3/4N3/N7/4k3/7P/8/QR2PP2/8 w - - 0 1)

Campbell, AWD

Comm., BCPJ (May), 1919

4K3/4N3/N7/4k3/7P/8/QR2PP2/8

#2

8 + 1


5454 Near Snap 2021
  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd5#
  • Tries
    • 1.Rb4?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kf6!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Qc4#
        • 2.Qa4#
      • 1...Kf4
        • 2.Qc4#
        • 2.Qa4#
      • 1...Kd6
        • 2.Qd5#
      • 1...Kf6
        • 2.Qf7#
      • 1...Kd4!
    • 1.Qc4?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kf6!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Rb4#
        • 2.Qd4#
        • 2.Qf5#
      • 1...Kf6!
    • 1.e3?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...Kf6!
  • Keys
    • 1.Qa1!
      • 1...Kd4
        • 2.Rb4#
      • 1...Ke4
        • 2.Rb4#
      • 1...Kf4
        • 2.Rb4#
      • 1...Kd6
        • 2.Rb6#
      • 1...Ke6
        • 2.Rb6#
      • 1...Kf6
        • 2.Rb6#

Anticipated by 4529(1871)



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).