Problem Display
PID: 218450 (8/1N6/2p5/K2kN2R/5BB1/7R/n7/8 w - - 0 1)

Laws, Benjamin Glover

Philadelphia Times, 1881

8/1N6/2p5/K2kN2R/5BB1/7R/n7/8

#2

7 + 3


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Sxc6+?
      • 1...Kc4
        • 2.Sd6#
        • 2.Be2#
        • 2.Be6#
        • 2.Rc5#
      • 1...Kxc6
        • 2.Sd8#
      • 1...Ke4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf3#
      • 1...Kd4
        • 2.Sxc6#
      • 1...Kc5
        • 2.Sf3#
      • 1...Kxd6
        • 2.Sg6#
      • 1...c5
        • 2.Rd3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT,XS(E)::S(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • R(F)+S(E)
    • Vars
      • K(b);P-FLIGHT::S(E),XP(c)
      • K(b);P-FLIGHT::R(F)+S(E)
      • K(b);P-FLIGHT,XS(G)::B(B)+S(E)
      • P(c);SBLOCK::R(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).