Problem Display
PID: 65343 (8/3kB3/8/2Q3P1/4K3/b7/8/3B4 w - - 0 1)

Pilipenko, Viktor

2nd HM., Prapor peremogi, 1972

8/3kB3/8/2Q3P1/4K3/b7/8/3B4

#2

5 + 2


56 The Problemist 2006
5454 Near Snap 2023

SOLUTION


  • SOUND
  • Tries
    • 1.Qc7+?
      • 1...Ke6
        • 2.Bb3#
      • 1...Ke8
        • 2.Bh5#
      • 1...Kxc7!
  • Keys
    • 1.Qa7+!
      • 1...Kc6
        • 2.Ba4#
      • 1...Ke6
        • 2.Bb3#
      • 1...Kc8
        • 2.Bg4#
      • 1...Ke8
        • 2.Bh5#

Anticipated by 22924(1970)

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);CHECK
    • Vars
      • K(b);S_FLIGHT::B(A)


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).