Problem Display
PID: 19259 (1R6/1NK5/8/P7/1k1NB2R/2p5/2p5/2B5 w - - 0 1)

Laws, Benjamin Glover

HM., Jamaica Family Journal, 1881

1R6/1NK5/8/P7/1k1NB2R/2p5/2p5/2B5

#2

8 + 3


3316 Chess Problem Text Book 1887
2794 Terms & Themes of Chess Problems 1907
56 The Problemist 1928
3571 An English Bohemian 1933
3310 2345 Chess Problems 1997
23 Die Schwalbe 2011
5454 Near Snap 2023

SOLUTION


  • SOUND
  • Tries
    • 1.Sc6+?
      • 1...Kb3
        • 2.Bd5#
      • 1...Ka4
        • 2.Sc5#
      • 1...Kb5
        • 2.Bd3#
      • 1...Kc4!
    • 1.Se6?
      • 1...Kb3
        • 2.Bd5#
      • 1...Kc4
        • 2.Sd6#
      • 1...Kb5
        • 2.Bd3#
      • 1...Ka4!
  • Keys
    • 1.Sb3!
      • 1...Kxb3
        • 2.Bd5#
      • 1...Ka4
        • 2.S7c5#
      • 1...Kc4
        • 2.Sd6#
      • 1...Kb5
        • 2.Bd3#

This anticipates 234055(1959)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::B(C)
        • K(c);P-FLIGHT::S(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(c);P-FLIGHT::B(C)
        • K(c);P-FLIGHT::S(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(c);P-FLIGHT,XS(B)::B(C)
      • K(c);P-FLIGHT::S(F)
      • K(c);P-FLIGHT::B(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).