Problem Display
PID: 246328 (4kN2/8/8/5p1b/2R5/BR6/K7/8 w - - 0 1)

Casa, Alex

Europe Echecs, 1996

4kN2/8/8/5p1b/2R5/BR6/K7/8

#2

5 + 3


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kd8
      • 2.Rb8#
    • 1...Bf7
      • 2.Rb8#
      • 2.Rc8#
  • Tries
    • 1.Rc7?
      • threat
        • 2.Rb8#
      • 1...Bf7
        • 2.Rc8#
      • 1...Kd8!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Rc8#
      • 1...Kd8
        • 2.Rb8#
      • 1...Bf7
        • 2.Rb8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::R(C)
  • Tries
    • Try
      • R(D);
      • Threat
        • R(C)
      • Vars
        • B(b);P_PINR(C),SBLOCK::R(D)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • R(D)
    • Vars
      • K(c);P-FLIGHT::R(C)
      • B(b);P_PINR(D),SBLOCK::R(C)


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).