MESON Chess Problem Database

Problem Display
PID: 214912 (4N1b1/8/5p1n/3p1k2/3pR2Q/8/8/K7 w - - 0 1)

Wheeler, Charles Henry

St. Louis Globe Democrat, 1879

4N1b1/8/5p1n/3p1k2/3pR2Q/8/8/K7

#2

4 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Qxg4#
    • 1...Sf7
      • 2.Qg4#
  • Keys
    • 1.Qg3!
      • threat
        • 2.Sd6#
      • 1...Kxe4
        • 2.Sd6#
      • 1...dxe4
        • 2.Sg7#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Sf7
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::QAB1(C),XS(e)
    • S(e);N_GUARD::QAB1(C)
  • Actual
    • Q(C);
    • Threat
      • S(D)
    • Vars
      • K(c);S_FLIGHT,XR(B)::S(D)
      • P(b);SBLOCK,XR(B)::S(D)
      • S(e);N_GUARD::QAB1(C),XS(e)
      • S(e);N_GUARD::QAB1(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).