MESON Chess Problem Database

Problem Display
PID: 110608 (7k/4pK1p/8/3n4/8/8/5Q2/2b5 w - - 0 1)

Gavriliv, Evgeni M

Land og Folk, 1979

7k/4pK1p/8/3n4/8/8/5Q2/2b5

#2

2 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg1?
      • threat
        • 2.Qg7#
        • 2.Qg8#
      • 1...Bb2
        • 2.Qg8#
      • 1...Bh6
        • 2.Qg8#
      • 1...Sf6
        • 2.Qg7#
      • 1...Bg5!
    • 1.Qg2?
      • threat
        • 2.Qg7#
        • 2.Qg8#
      • 1...Sf6
        • 2.Qg7#
      • 1...Bb2
        • 2.Qg8#
      • 1...Bh6
        • 2.Qg8#
      • 1...Bg5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qb8#
        • 2.Qg7#
        • 2.Qg8#
      • 1...h5
        • 2.Qg7#
        • 2.Qg8#
      • 1...h6
        • 2.Qg7#
        • 2.Qg8#
      • 1...Bb2
        • 2.Qb8#
        • 2.Qg8#
      • 1...Bf4
        • 2.Qg7#
        • 2.Qg8#
      • 1...Bg5
        • 2.Qb8#
      • 1...Bh6
        • 2.Qg8#
      • 1...Sf4
        • 2.Qg7#
        • 2.Qg8#
      • 1...Sb6
        • 2.Qe5#
        • 2.Qg7#
        • 2.Qg8#
      • 1...Sf6
        • 2.Qg7#
      • 1...Sc7
        • 2.Qe5#
        • 2.Qg7#
        • 2.Qg8#
      • 1...e5
        • 2.Qg7#
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(A)
        • S(b);::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAB1(A)
        • B(a);::QAR1(A)
      • Refutation
        • B(a);
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • B(a);::QAR(A)
      • B(a);::QAR1(A)
      • S(b);::QAB1(A)
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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).