MESON Chess Problem Database

Problem Display
PID: 136520 (Q7/1N3N2/3rp1pb/5p2/5k2/1b1p3K/1rPP4/7B w - - 0 1)

Djulinac, Stevan

Liga Problemista, 1992-1994/2

Q7/1N3N2/3rp1pb/5p2/5k2/1b1p3K/1rPP4/7B

#2

7 + 9

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qf1#
      • 1...Rb1
        • 2.Qe5#
      • 1...Bd5!
    • 1.Qa7?
      • threat
        • 2.Qf2#
        • 2.Qe3#
      • 1...Bd5
        • 2.Qe3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rb6!
    • 1.Qh8?
      • threat
        • 2.Qe5#
      • 1...Bg7
        • 2.Qh4#
      • 1...e5
        • 2.Qxe5#
      • 1...Rd5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qf3#
      • 1...Rd5
        • 2.Sxe6#
      • 1...Rc6
        • 2.Sxd3#
      • 1...Bd5
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR(G)
      • Vars
        • R(a);OGATE::QAB1(G)
      • Refutation
        • B(b);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAB1(G)
        • R(f);N_GUARD::QAR2(G),XR(f)
      • Refutation
        • R(f);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • B(i);OGATE::QAR2(G)
        • P(g);::QAB1(G),XP(g)
      • Refutation
        • R(f);
  • Actual
    • S(E);
    • Threat
      • QAR1(G)
    • Vars
      • R(f);N_GUARD,S_CUTB(b)::S(E),XP(g)
      • R(f);N_GUARD::S(E),XP(c)
      • B(b);S_CUTR(f)::S(E),XP(c)
HTML5 logo

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).