MESON Chess Problem Database

Problem Display
PID: 198117 (4k3/2PnPn2/8/3N4/8/8/8/2K5 w - - 0 1)

Halpern, James

Good Companions, 1920

4k3/2PnPn2/8/3N4/8/8/8/2K5

#2

4 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.c8S!
      • threat
        • 2.Sc7#
      • 1...Sc5
        • 2.Sf6#
      • 1...Sde5
        • 2.Sf6#
      • 1...Sb6
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sb8
        • 2.Sf6#
      • 1...Sf8
        • 2.Sf6#
      • 1...Sfe5
        • 2.Sd6#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sh6
        • 2.Sd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(C);
    • Threat
      • S(B)
    • Vars
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
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).