Problem Display
PID: 152609 (8/8/8/7R/4k3/8/2KPP3/2B5 w - - 0 1)

Lincoln, Robert A

The Problemist, 2014

8/8/8/7R/4k3/8/2KPP3/2B5

#2

5 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Rg5?
      • 1...Kf4
        • 2.d3#
      • 1...Kd4!
  • Keys
    • 1.d3+!
      • 1...Kd4
        • 2.e3#

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::B(A)+P(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);CHECK
    • Vars
      • K(a);P-FLIGHT::P(D)


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).