MESON Chess Problem Database

Problem Display
PID: 23147 (2R4n/5kp1/3K1p2/8/8/8/8/6Q1 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

2R4n/5kp1/3K1p2/8/8/8/8/6Q1

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...g6
      • 2.Qa7#
  • Tries
    • 1.Qg4?
      • 1...f5
        • 2.Qxf5#
      • 1...g6
        • 2.Qd7#
      • 1...Sg6
        • 2.Qe6#
        • 2.Qc4#
      • 1...g5!
  • Keys
    • 1.Qb1!
      • 1...f5
        • 2.Qxf5#
      • 1...g5
        • 2.Qh7#
      • 1...g6
        • 2.Qb7#
      • 1...Sg6
        • 2.Qa2#
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Vars
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(c);OGATEB::QAR2(A)
      • P(c);SBLOCK::QAR(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).