Problem Display
PID: 216442 (k1K5/ppp5/8/8/8/8/8/RR6 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1979

k1K5/ppp5/8/8/8/8/8/RR6

#2

3 + 4


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...a5
      • 2.Rxa5#
  • Keys
    • 1.Rxb7!
      • threat
        • 2.Raxa7#
        • 2.Rbxa7#
        • 2.Rb8#
      • 1...a5
        • 2.Rxa5#
      • 1...a6
        • 2.Rxa6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::R(A),XP(a)
  • Actual
    • R(B);XP(b)
    • Threat
      • DUALS(3)
    • Vars
      • P(a);OGATEB::R(A),XP(a)


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).