MESON Chess Problem Database

Problem Display
PID: 174392 (6Q1/1K5n/3b1P1r/4k3/1pB2R2/8/1qp5/8 w - - 0 1)

Bakcsi, Gyorgy

Boletim da UBP, 1988

6Q1/1K5n/3b1P1r/4k3/1pB2R2/8/1qp5/8

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb8
      • 2.Qxb8#
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sxf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
  • Tries
    • 1.Rf3?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke4
        • 2.Qd5#
      • 1...Qd4
        • 2.Qe6#
      • 1...Sxf6!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qe6#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kxf6
        • 2.Qe6#
      • 1...Rxf6
        • 2.Qd5#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(e);OGATEB::QAB(E),XB(e)
    • S(g);N_GUARD::QAR2(E),XS(g)
    • S(g);N_GUARD,XP(C)::QAR2(E)
    • S(g);N_GUARD::QAR2(E)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR1(E)
      • Vars
        • K(d);S_FLIGHT::QAR1(E)
        • K(d);P-FLIGHT::QAB1(E)
        • Q(a);SBLOCK::QAR1(E)
      • Refutation
        • S(g);XP(C)
  • Actual
    • R(B);
    • Threat
      • QAR1(E)
    • Vars
      • K(d);P-FLIGHT::QAB1(E)
      • K(d);S_FLIGHT,XP(C)::QAR1(E)
      • R(f);SBLOCK,XP(C)::QAR1(E)
      • S(g);N_GUARD::QAR2(E),XS(g)
      • S(g);N_GUARD::QAR2(E)
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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).