MESON Chess Problem Database

Problem Display
PID: 23148 (1K5Q/n2kp3/6R1/1P6/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

1K5Q/n2kp3/6R1/1P6/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb5
      • 2.Qc8#
    • 1...Sc6+
      • 2.bxc6#
    • 1...Sc8
      • 2.Qxc8#
  • Keys
    • 1.Qf8!
      • 1...Sc6+
        • 2.bxc6#
      • 1...Sxb5
        • 2.Qc8#
      • 1...Sc8
        • 2.Qxc8#
      • 1...e5
        • 2.Rd6#
      • 1...e6
        • 2.Rg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XP(A)::QAB1(D)
    • S(a);CHECK,OGATE::P(A),XS(a)
    • S(a);N_GUARD::QAB1(D),XS(a)
  • Actual
    • Q(D);
    • Vars
      • S(a);CHECK,OGATE::P(A),XS(a)
      • S(a);N_GUARD,XP(A)::QAB1(D)
      • S(a);N_GUARD::QAB1(D),XS(a)
      • P(c);N_GUARD::R1(B)
      • P(c);OGATEB,SBLOCK::R(B)
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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).