MESON Chess Problem Database

Problem Display
PID: 9358 (8/8/2n1n3/1N1k1N2/p5p1/BP1b1P2/2PKP3/8 w - - 0 1)

Keeble, John Frederick

Leeds Mercury, 1901

8/8/2n1n3/1N1k1N2/p5p1/BP1b1P2/2PKP3/8

#2

8 + 6

3360 Simple Two-move Themes 1924
887 Mate in Two Moves 1931

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Se7#
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sc3#
        • 2.Se3#
      • 1...Bxb5
        • 2.e4#
      • 1...Bxf5
        • 2.c4#
      • 1...axb3
        • 2.Se3#
      • 1...gxf3
        • 2.Sc3#
      • 1...Sb4
        • 2.Se7#
      • 1...Scd4
        • 2.Se7#
      • 1...Sa5
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Sa7
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#
      • 1...Sb8
        • 2.Se7#
      • 1...Scd8
        • 2.Se7#
      • 1...Sed4
        • 2.Sc7#
      • 1...Sf4
        • 2.Sc7#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sg5
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sg7
        • 2.Sc7#
      • 1...Sed8
        • 2.Sc7#
      • 1...Sf8
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,SBLOCK::S(H)
  • Actual
    • B(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);N_GUARD,XS(G)::P(C)
      • B(a);N_GUARD,XS(H)::P(A)
      • P(b);XP(E)::S(H)
      • P(c);XP(F)::S(G)
      • S(e);N_GUARD::S(H)
      • S(e);N_GUARD::S(H),XS(e)
      • S(f);N_GUARD::S(G)
      • S(f);N_GUARD::S(G),XS(f)
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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).