Problem Display
PID: 45856 (B2R4/8/1nP1kBK1/1nP5/8/8/8/8 w - - 0 1)

Wester, Anders Emil

Land og Folk, 0000

B2R4/8/1nP1kBK1/1nP5/8/8/8/8

#2

6 + 3


4885 Amatorproblem 1976

SOLUTION


  • SOUND
  • Sets
    • 1...Sa3
      • 2.Rd6#
    • 1...Sc3
      • 2.Rd6#
    • 1...Sd4
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sa7
      • 2.Rd6#
    • 1...Sc7
      • 2.Rd6#
  • Tries
    • 1.Bb7?
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sa3
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd6#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sa7
        • 2.Rd6#
      • 1...Sc7
        • 2.Rd6#
      • 1...Sa4
        • 2.Bc8#
      • 1...Sc4
        • 2.Bc8#
      • 1...Sd5
        • 2.Bc8#
      • 1...Sa8
        • 2.Bc8#
      • 1...Sc8
        • 2.Bxc8#
      • 1...Sd7!
  • Keys
    • 1.c7!
      • 1...Sxc7
        • 2.Rd6#
      • 1...Sxa8
        • 2.c8Q#
        • 2.c8B#
      • 1...Sa3
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd6#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sa7
        • 2.Rd6#
      • 1...Sa4
        • 2.Bd5#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sc4
        • 2.Bd5#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd5
        • 2.Bxd5#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd7
        • 2.Re8#
      • 1...Sc8
        • 2.Bd5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::R1(F)
    • S(a);N_GUARD::R1(F),XS(a)
  • Tries
    • Try
      • B(E);
      • Vars
        • S(a);N_GUARD::R1(F),XS(a)
        • S(a);N_GUARD::R1(F)
        • S(b);N_GUARD::B(E)
        • S(b);N_GUARD::B(E),XS(b)
      • Refutation
        • S(b);
  • Actual
    • P(B);
    • Vars
      • S(a);N_GUARD,XP(B)::R1(F)
      • S(b);N_GUARD,XB(E)::P=Q
      • S(a);N_GUARD::R1(F)
      • S(a);N_GUARD::R1(F),XS(a)
      • S(b);SBLOCK::R(F)
      • S(b);N_GUARD::B(E)


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).