MESON Chess Problem Database

Problem Display
PID: 9406 (8/2k2N1Q/1N6/1K6/8/8/8/8 w - - 0 1)

Aschehoug, Herman Weyer Lund

Morgenbladet, 1902

8/2k2N1Q/1N6/1K6/8/8/8/8

#2

4 + 1

4884 154 norske miniatyrproblemer 1974
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se5+?
      • 1...Kb8
        • 2.Sc6#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kd6!
    • 1.Sd6+?
      • 1...Kb8
        • 2.Qb7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kxd6!
    • 1.Sd8+?
      • 1...Kb8
        • 2.Sc6#
        • 2.Qb7#
      • 1...Kxd8
        • 2.Qd7#
      • 1...Kd6!
  • Keys
    • 1.Ka6!
      • 1...Kc6
        • 2.Qc2#
      • 1...Kb8
        • 2.Qh2#

Anticipated by 9405(1902)

This anticipates 223472(1926)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR(D)
      • K(a);S_FLIGHT::QAB(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).