MESON Chess Problem Database

Problem Display
PID: 110161 (3n4/2p2p2/Q1p2K1p/1PB4p/p1B1k2N/6Pp/Np2P2R/1r1n3b w - - 0 1)

Labai, Zoltan

CSSZ, 1973

3n4/2p2p2/Q1p2K1p/1PB4p/p1B1k2N/6Pp/Np2P2R/1r1n3b

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.exf3#
    • 1...Sf2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Se6
      • 2.Qxc6#
    • 1...Sb7
      • 2.Qxc6#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qf5#
      • 1...Se3
        • 2.Sc3#
      • 1...Se6!
    • 1.Qxa4?
      • threat
        • 2.Bb3#
        • 2.Be6#
        • 2.Bxf7#
        • 2.Qc2#
      • 1...cxb5
        • 2.Qc2#
      • 1...Sf2
        • 2.Sc3#
        • 2.Bb3#
        • 2.Be6#
        • 2.Bxf7#
      • 1...Sc3
        • 2.Sxc3#
        • 2.Qc2#
      • 1...Se3
        • 2.Sc3#
      • 1...Se6
        • 2.Bxe6#
        • 2.Qc2#
      • 1...Rc1!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Rf4#
      • 1...Sxf2
        • 2.Sc3#
      • 1...Bf3
        • 2.exf3#
      • 1...Se6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(c);OGATE::P(B),XB(c)
    • S(b);N_GUARD::S(A)
    • S(b);N_GUARD::S(A),XS(b)
    • S(m);N_GUARD::QAB(I),XP(i)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • S(b);N_GUARD::S(A)
      • Refutation
        • S(m);
    • Try
      • Q(I);XP(f)
      • Threat
        • DUALS(4)
      • Vars
        • P(i);XP(G)::QAB(I)
        • S(b);N_GUARD::S(A)
      • Refutation
        • R(a);
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • S(b);N_GUARD,XR(C)::S(A)
      • B(c);OGATE::P(B),XB(c)
      • S(m);N_GUARD::QAB(I),XP(i)
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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).