MESON Chess Problem Database

Problem Display
PID: 149379 (5N1K/8/3N4/4k3/1P6/8/4P3/3Q4 w - - 0 1)

Dehler, Ernst Georg

Arbeiter Schachzeitung, 1921

5N1K/8/3N4/4k3/1P6/8/4P3/3Q4

#2

6 + 1

5454 Near Snap 2014
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kf6!
  • Keys
    • 1.Qg1!
      • 1...Kf4
        • 2.Sg6#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#

Anticipated by 57307(0000), 66579(1897)

FEATURES

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