MESON Chess Problem Database

Problem Display
PID: 195090 (3Q3K/8/5N2/4k3/3N4/8/1P6/8 w - - 0 1)

Janet, Frank

Pittsburgh Gazette-Times, 1918

3Q3K/8/5N2/4k3/3N4/8/1P6/8

#2

5 + 1

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd7?
      • 1...Kxf6
        • 2.Qg7#
      • 1...Kf4!
  • Keys
    • 1.Qc7+!
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kxf6
        • 2.Qg7#

This anticipates 79396(1965)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);CHECK
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(D)
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(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).