Problem Display
PID: 133332 (2K5/8/2NR3B/3P4/4knB1/2R5/7r/6N1 w - - 0 1)

King-Farlow, Charles P

The Field, 1961

(First published on Thu Jan 5 1961)

2K5/8/2NR3B/3P4/4knB1/2R5/7r/6N1

#2

8 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Se2
      • 2.Re3#
    • 1...Sd3
      • 2.Rc4#
    • 1...Sh3
      • 2.Re3#
    • 1...Sxd5
      • 2.Re6#
    • 1...Sh5
      • 2.Re3#
    • 1...Se6
      • 2.Re3#
    • 1...Sg6
      • 2.Re3#
  • Tries
    • 1.Sh3?
      • threat
        • 2.Sg5#
      • 1...Sxh3
        • 2.Re3#
      • 1...Sxd5
        • 2.Re6#
      • 1...Se2
        • 2.Re3#
      • 1...Sg2
        • 2.Sf2#
      • 1...Sd3
        • 2.Rc4#
      • 1...Sh5
        • 2.Re3#
      • 1...Se6
        • 2.Re3#
      • 1...Sg6
        • 2.Re3#
      • 1...Rxh3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sg5#
      • 1...Sxd5
        • 2.Re6#
      • 1...Rh5
        • 2.Sd2#
      • 1...Se2
        • 2.Sd2#
        • 2.Re3#
      • 1...Sg2
        • 2.Sd2#
      • 1...Sd3
        • 2.Rc4#
      • 1...Sh3
        • 2.Re3#
      • 1...Sh5
        • 2.Re3#
      • 1...Se6
        • 2.Re3#
      • 1...Sg6
        • 2.Re3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(c);::R1(B)
    • S(c);SBLOCK::R(B)
    • S(c);N_GUARD,SBLOCK,XP(D)::R(F)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • S(c);XS(A)::R1(B)
        • S(c);N_GUARD,SBLOCK,XP(D)::R(F)
        • S(c);::R1(B)
        • S(c);S_CUTR(a)::S(A)
        • S(c);SBLOCK::R(B)
      • Refutation
        • R(a);XS(A)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • S(c);N_GUARD,SBLOCK,XP(D)::R(F)
      • R(a);N_GUARD::S(A)
      • S(c);S_CUTR(a)::S(A)
      • S(c);SBLOCK::R(B)
      • S(c);::R1(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).