Problem Display
PID: 27778 (8/8/2B5/rb6/kpN5/8/PRP5/6K1 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

8/8/2B5/rb6/kpN5/8/PRP5/6K1

#2

6 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.c3?
      • threat
        • 2.Rxb4#
      • 1...b3
        • 2.axb3#
      • 1...bxc3!
  • Keys
    • 1.a3!
      • threat
        • 2.Rxb4#
      • 1...bxa3
        • 2.Sb6#
      • 1...b3
        • 2.cxb3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • R1(C),XP(b)
      • Vars
        • P(b);OGATE::P(B),XP(b)
      • Refutation
        • P(b);XP(D)
  • Actual
    • P(B);
    • Threat
      • R1(C),XP(b)
    • Vars
      • P(b);SBLOCK,XP(B)::S(E)
      • P(b);OGATE::P(D),XP(b)


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).