MESON Chess Problem Database

Problem Display
PID: 74915 (8/b1pRNK2/5p2/1prpk3/2p3pn/2P2b2/4prnN/1BQ5 w - - 0 1)

Golha, Jan

Hlas l'udu, 1982

8/b1pRNK2/5p2/1prpk3/2p3pn/2P2b2/4prnN/1BQ5

#2

7 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sxc6#
    • 1...Be4
      • 2.Sxg4#
    • 1...Sf5
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...d4
      • 2.cxd4#
  • Tries
    • 1.Qe3+?
      • 1...Be4
        • 2.Sxg4#
      • 1...Sxe3!
    • 1.Qh6?
      • threat
        • 2.Qxf6#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Be4
        • 2.Sxg4#
      • 1...Sf5
        • 2.Sg6#
      • 1...Sg6
        • 2.Sxg6#
      • 1...f5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd4#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Be4
        • 2.Sxg4#
      • 1...Sf5
        • 2.Sg6#
      • 1...d4
        • 2.Qxd4#
        • 2.cxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(i);N_GUARD::S(F),XR(i)
    • B(d);N_GUARD::S(C),XP(f)
    • S(g);N_GUARD::S(F)
    • S(g);N_GUARD::S(F),XS(g)
    • P(j);OGATE::P(D),XP(j)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • B(d);P_SPINB(d)::S(C),XP(f)
      • Refutation
        • S(c);XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(l)
      • Vars
        • R(i);N_GUARD::S(F),XR(i)
        • B(d);N_GUARD::S(C),XP(f)
        • S(g);N_GUARD::S(F)
        • S(g);N_GUARD::S(F),XS(g)
      • Refutation
        • P(l);
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • R(i);N_GUARD::S(F),XR(i)
      • B(d);N_GUARD::S(C),XP(f)
      • S(g);N_GUARD::S(F)
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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).