Problem Display
PID: 183237 (b3KQ2/6p1/8/1NNpk3/1Pp5/8/4nP2/6b1 w - - 0 1)

Pistek, Frantisek

Pravo lidu, 1907

b3KQ2/6p1/8/1NNpk3/1Pp5/8/4nP2/6b1

#2

6 + 7


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Sc1
      • 2.f4#
    • 1...Sc3
      • 2.f4#
    • 1...Sg3
      • 2.f4#
    • 1...Sd4
      • 2.f4#
  • Tries
    • 1.Sd7+?
      • 1...Ke6
        • 2.Sc7#
        • 2.Qf7#
      • 1...Ke4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf3#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Kxd4
        • 2.Qxg7#
      • 1...Sxd4
        • 2.f4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(b);N_GUARD::P(A)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(g);CHECK,N_GUARD::S(C),XB(g)
      • K(e);S_FLIGHT,XS(C)::QAB(F),XP(f)
      • S(b);N_GUARD,SBLOCK,XS(C)::P(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).