Problem Display
PID: 175080 (7Q/1b3K1p/1bpkP3/4R3/2pp4/2N5/8/8 w - - 0 1)

Stritecky Blazej

Neue Illustrierte Blatt, 1902

7Q/1b3K1p/1bpkP3/4R3/2pp4/2N5/8/8

#2

5 + 7


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qb8#
    • 1...Bc7
      • 2.Se4#
  • Tries
    • 1.Rd5+?
      • 1...Kc7
        • 2.Rd7#
        • 2.Qd8#
      • 1...cxd5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qe5#
      • 1...Kxc5
        • 2.Qf8#
      • 1...Kc7
        • 2.Sb5#
      • 1...Bxc5
        • 2.Qb8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::QAB(E)
    • B(c);SBLOCK::S(A)
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • P(d);XR(B)
  • Actual
    • R(B);
    • Threat
      • QAB1(E)
    • Vars
      • K(e);S_FLIGHT,XR(B)::QAB(E)
      • K(e);P_SPINP(d),S_FLIGHT::S(A)
      • B(c);N_GUARD,SBLOCK,XR(B)::QAB(E)


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).