Problem Display
PID: 257957 (NK1n1RN1/1pp3pr/b1pPk2q/b7/1p1Q4/1p5R/8/B7 w - - 0 1)

Kemp, Charles Edward

British Chess Magazine, 1934

NK1n1RN1/1pp3pr/b1pPk2q/b7/1p1Q4/1p5R/8/B7

#2

8 + 12


SOLUTION


  • SOUND
  • Tries
    • 1.Re3+?
      • 1...Kd7
        • 2.Re7#
      • 1...Qxe3!
    • 1.Qe4+?
      • 1...Kd7
        • 2.Qe7#
      • 1...Kxd6!
  • Keys
    • 1.Qe5+!
      • 1...Kd7
        • 2.Qe7#

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT::R1(B)
      • Refutation
        • Q(g);XR(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(f);P-FLIGHT,XP(D)
  • Actual
    • Q(C);CHECK
    • Vars
      • K(f);OGATE,S_FLIGHT::QAR1(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).