Problem Display
PID: 104343 (5Q2/3p4/2np4/3pk2K/2pr1p2/3p4/8/8 w - - 0 1)

Ilincic, Borislav

Mezija, 1999

5Q2/3p4/2np4/3pk2K/2pr1p2/3p4/8/8

#2

2 + 9


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Kg6?
      • threat
        • 2.Qf5#
      • 1...Se7+
        • 2.Qxe7#
      • 1...Ke6
        • 2.Qf6#
      • 1...Re4
        • 2.Qf6#
      • 1...Ke4!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Qf5#
      • 1...Ke4
        • 2.Qxf4#
      • 1...Ke6
        • 2.Qf6#
      • 1...Re4
        • 2.Qf6#
      • 1...Se7
        • 2.Qxe7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • S(g);CHECK,N_GUARD::QAR2(B),XS(g)
        • K(f);P-FLIGHT::QAR1(B)
        • R(c);SBLOCK::QAB1(B)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • QAR1(B)
    • Vars
      • K(f);P-FLIGHT::QAR1(B),XP(d)
      • K(f);P-FLIGHT::QAR1(B)
      • R(c);SBLOCK::QAB1(B)
      • S(g);N_GUARD::QAR2(B),XS(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).