Problem Display
PID: 193972 (1n6/1P6/r7/r1k5/p1p5/2N5/3R4/KQ5B w - - 0 1)

Wilhelm, Joseph A

Pittsburgh Gazette-Times, 1916

1n6/1P6/r7/r1k5/p1p5/2N5/3R4/KQ5B

#2

6 + 6


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Rb5
      • 2.Qxb5#
    • 1...Rc6
      • 2.Se4#
      • 2.Rd5#
    • 1...Sc6
      • 2.Se4#
      • 2.Rd5#
  • Keys
    • 1.Sa2!
      • threat
        • 2.Qb4#
      • 1...Rb5
        • 2.Qg1#
      • 1...Rb6
        • 2.Qf5#
      • 1...Sc6
        • 2.Rd5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::QAR1(B),XR(c)
  • Actual
    • S(E);
    • Threat
      • QAB1(B)
    • Vars
      • R(c);SBLOCK::QAB(B)
      • R(e);SBLOCK::QAR(B)
      • S(f);SBLOCK::R1(D)


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).