MESON Chess Problem Database

Problem Display
PID: 185848 (6k1/4K1P1/8/8/3p4/8/7p/1B1Q4 w - - 0 1)

Lincoln, Robert A

Problem Observer, 2016

6k1/4K1P1/8/8/3p4/8/7p/1B1Q4

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qf7#
        • 2.Qf8#
      • 1...Kxg7
        • 2.Qf8#
      • 1...d3!
    • 1.Qf1?
      • threat
        • 2.Qf7#
        • 2.Qf8#
      • 1...Kxg7
        • 2.Qf8#
      • 1...d3!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qf7#
        • 2.Qh7#
        • 2.Qh8#
      • 1...Kxg7
        • 2.Qh7#
      • 1...h1Q
        • 2.Qf7#
      • 1...h1R
        • 2.Qf7#
      • 1...d3
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT,XP(D)::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT,XP(D)::QAB1(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • DUALS(3)
    • Vars
      • K(c);P-FLIGHT,XP(D)::QAR1(B)
      • P(a);::QAB1(B)
      • P(b);::QAR1(B)
HTML5 logo

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).