Problem Display
PID: 16650 (4n3/8/1KR5/3k4/8/1pp1Q3/8/8 w - - 0 1)

Coombes, TA

Chess, 1942

4n3/8/1KR5/3k4/8/1pp1Q3/8/8

#2

3 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...Sd6
      • 2.Rc5#
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rd4#
      • 1...Kxc4
        • 2.Qe4#
      • 1...Kd6
        • 2.Rd4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);SBLOCK::R1(C)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAR2(A)
      • K(c);P-FLIGHT::R(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).