MESON Chess Problem Database

Problem Display
PID: 23874 (8/4Q3/1N6/pk3B2/8/8/K7/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/4Q3/1N6/pk3B2/8/8/K7/8

#2

4 + 2

5454 Near Snap 2008
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qc7?
      • 1...Kb4
        • 2.Qc4#
      • 1...Ka6
        • 2.Bd3#
      • 1...a4!
  • Keys
    • 1.Sa4!
      • 1...Kxa4
        • 2.Bd7#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka6
        • 2.Bd3#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 208794(1876), 121390(1908), 23345(1927), 22287(1934), 22386(1934), 170471(1951), 170476(1953), 176158(1954), 24220(1983), 171470(1988)

This anticipates 165528(1998), 26009(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(b);P-FLIGHT::QAR1(D)
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • P(a);
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT,XS(C)::B(B)
      • K(b);S_FLIGHT::QAR1(D)
      • K(b);S_FLIGHT::B(B)
      • K(b);S_FLIGHT::QAB1(D)
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).