Problem Display
PID: 255997 (2B1rb1K/3Pk1pR/4N2R/2p3Nb/4P1pB/5P1P/8/3r2q1 w - - 0 1)

Zilahi, Zoltan

British Chess Magazine, 1933

2B1rb1K/3Pk1pR/4N2R/2p3Nb/4P1pB/5P1P/8/3r2q1

#2

11 + 9


SOLUTION


  • SOUND
  • Tries
    • 1.Sf7+?
      • 1...g5
        • 2.Bxg5#
      • 1...Kxf7!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sc6#
      • 1...Kxd8
        • 2.Se6#
      • 1...Rxd8
        • 2.Re6#
      • 1...Bg6
        • 2.Sgf7#
      • 1...Rd6
        • 2.Sge6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK,N_PINP(g)
      • Vars
        • P(g);P_SPINP(g)::B(D),XP(g)
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(g),XS(E)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(f);N_GUARD,N_SPINP(g),S_FLIGHT,XS(F)::B(D)+S(E),DCHECK
      • R(h);SBLOCK,XS(F)::R1(G)
      • B(e);::B(D)+S(E)
      • R(a);SBLOCK::B(D)+S(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).