MESON Chess Problem Database

Problem Display
PID: 71798 (8/6Q1/2N5/2pp4/5p2/1p1k1p2/1P3P2/3K4 w - - 0 1)

Hilton, Charles G

Chess, 1952

8/6Q1/2N5/2pp4/5p2/1p1k1p2/1P3P2/3K4

#2

5 + 6

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg6#
      • 2.Qh7#
    • 1...c4
      • 2.Qd4#
      • 2.Qg6#
      • 2.Qh7#
  • Tries
    • 1.Qg1?
      • 1...Kc4
        • 2.Qf1#
      • 1...Ke4
        • 2.Qg6#
      • 1...c4
        • 2.Qg6#
      • 1...d4!
    • 1.Qa7?
      • 1...Kc4
        • 2.Qa6#
      • 1...Ke4
        • 2.Qh7#
      • 1...c4
        • 2.Qd4#
        • 2.Qh7#
      • 1...d4!
  • Keys
    • 1.Qb7!
      • 1...Kc4
        • 2.Qa6#
      • 1...Ke4
        • 2.Qh7#
      • 1...d4
        • 2.Se5#
      • 1...c4
        • 2.Qh7#

Anticipated by 78154(1897), 161433(1897), 184792(1908), 93154(1929)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
        • P(e);SBLOCK::QAB(E)
      • Refutation
        • P(f);
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • P(f);
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::QAB(E)
      • P(f);SBLOCK::S(D)
      • P(e);SBLOCK::QAB(E)
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).