MESON Chess Problem Database

Problem Display
PID: 163371 (2Q5/8/8/B5k1/3K2B1/8/8/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Uralski Problemist, 1994

2Q5/8/8/B5k1/3K2B1/8/8/8

#2

4 + 1

5454 Near Snap 2017
3713 Snap 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kh4
        • 2.Be1#
      • 1...Kh6!
  • Keys
    • 1.Qg8+!
      • 1...Kf4
        • 2.Bc7#
      • 1...Kh4
        • 2.Be1#
      • 1...Kf6
        • 2.Bd8#
      • 1...Kh6
        • 2.Bd2#

Anticipated by 116899(1962), 22924(1970), 86743(1990)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);CHECK
    • Vars
      • K(a);S_FLIGHT::B(C)
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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).