Problem Display
PID: 145224 (3N4/r1n1B1p1/1N1p2K1/4k3/3p2R1/2n5/2r1pP2/8 w - - 0 1)

Janet, Frank

Brisbane Courier, 1918

(First published on Sat Aug 10 1918)

3N4/r1n1B1p1/1N1p2K1/4k3/3p2R1/2n5/2r1pP2/8

#2

6 + 9


14868 Pirnie Collection 2012
5454 Near Snap 2022

SOLUTION


  • SOUND
  • Sets
    • 1...Se4
      • 2.f4#
    • 1...S3d5
      • 2.Sd7#
    • 1...S7d5
      • 2.Sc4#
    • 1...Se6
      • 2.Sc6#
      • 2.Sf7#
    • 1...d5
      • 2.Sd7#
  • Keys
    • 1.Bh4!
      • threat
        • 2.Bg3#
      • 1...Se4
        • 2.f4#
      • 1...S3d5
        • 2.Sd7#
      • 1...S7d5
        • 2.Sc4#
      • 1...Se6
        • 2.Sc6#

This anticipates 152867(1942)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK::P(A)
    • S(c);SBLOCK::S(C)
    • S(h);SBLOCK::S(C)
    • P(f);SBLOCK::S(C)
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • S(c);SBLOCK::P(A)
      • S(c);SBLOCK::S(C)
      • S(h);SBLOCK::S(C)
      • S(h);SBLOCK::S(F)


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).