Problem Display
PID: 231064 (2N5/K2k3B/4Np2/2R5/8/8/8/8 w - - 0 1)

Evdokimov, Aleksey

Kudesnik, 2006

2N5/K2k3B/4Np2/2R5/8/8/8/8

#2

5 + 2


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Rc7+?
      • 1...Ke8
        • 2.Sd6#
        • 2.Bg6#
        • 2.Re7#
      • 1...Kxe6!
  • Keys
    • 1.Rd5+!
      • 1...Kc6
        • 2.Se7#
      • 1...Kxe6
        • 2.Bg8#
      • 1...Kxc8
        • 2.Rd8#
      • 1...Ke8
        • 2.Bg6#

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • R(A);CHECK
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT,XS(B)::B(D)
      • K(b);OGATE,S_FLIGHT,XS(E)::R1(A)
      • K(b);S_FLIGHT::B(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).