Problem Display
PID: 134151 (5Q2/5P2/2N1N1n1/3BPkn1/3Rp1pb/6p1/6P1/K7 w - - 0 1)

Taraba, Jozef

4th Prize, Pravda, 1982

5Q2/5P2/2N1N1n1/3BPkn1/3Rp1pb/6p1/6P1/K7

#2

9 + 7


14580 Chess Compositions (Taraba) 2009

SOLUTION


  • SOUND
  • Sets
    • 1...e3
      • 2.Sg7#
  • Tries
    • 1.Bxe4+?
      • 1...Kxe6
        • 2.Rd6#
      • 1...Sxe4!
  • Keys
    • 1.Qh6!
      • 1...Sxe6
        • 2.Bxe4#
      • 1...Sxf7
        • 2.Sg7#
      • 1...Sxe5
        • 2.Se7#
      • 1...Sf3
        • 2.Sg7#
      • 1...Sh3
        • 2.Sg7#
      • 1...Sh7
        • 2.Sg7#
      • 1...Sf4
        • 2.Sg7#
        • 2.Qf6#
      • 1...Se7
        • 2.Qf6#
      • 1...Sf8
        • 2.Qf6#
      • 1...Sh8
        • 2.Qf6#
      • 1...e3
        • 2.Sg7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(b);::S(G)
  • Tries
    • Try
      • B(D);CHECK,XP(b)
      • Vars
        • K(e);S_FLIGHT,XS(G)::R1(C)
      • Refutation
        • S(f);XB(D)
  • Actual
    • Q(I);
    • Vars
      • S(f);N_GUARD,SBLOCK,XS(G)::B(D),XP(b)
      • S(f);XP(H)::S(G)
      • S(g);N_GUARD,SBLOCK,XP(E)::S(F)
      • S(f);::S(G)
      • S(g);OGATE::QAR1(I)
      • P(b);::S(G)


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).