MESON Chess Problem Database

Problem Display
PID: 183303 (3n4/3K4/8/3k4/2NpN3/3Q4/P5P1/8 w - - 0 1)

Hjelle, David

Bulletin Ouvrier des Echecs, 1953

3n4/3K4/8/3k4/2NpN3/3Q4/P5P1/8

#2

6 + 3

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qh3!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Kxe4
        • 2.Qf3#
      • 1...d3
        • 2.Qxd3#
      • 1...Sc6
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#

Anticipated by 120679(1914)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(C);N_PINP(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(D)::QAB1(C)
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(C)
      • P(a);OGATEB::QAR2(C),XP(a)
      • S(c);N_GUARD::QAB1(C)
      • S(c);N_GUARD::QAB1(C),XS(c)
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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).