MESON Chess Problem Database

Problem Display
PID: 186067 (7n/8/6p1/7k/8/4Q3/5K1N/4B3 w - - 0 1)

Lincoln, Robert A

Problem Observer, 2017

7n/8/6p1/7k/8/4Q3/5K1N/4B3

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Qh6#
  • Keys
    • 1.Bd2!
      • threat
        • 2.Qg5#
        • 2.Qh6#
        • 2.Qh3#
      • 1...Kh4
        • 2.Qh6#
      • 1...g5
        • 2.Qxg5#
      • 1...Sf7
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(D)
  • Actual
    • B(A);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • P(b);::QAR1(D),XP(b)
      • S(c);::QAR2(D)
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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).