MESON Chess Problem Database

Problem Display
PID: 271506 (8/1RpNpR2/1Npkp3/2n1n3/8/5B2/8/3K4 w - - 0 1)

Ingram, Jesse George

The Problemist, 1956

8/1RpNpR2/1Npkp3/2n1n3/8/5B2/8/3K4

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd7
      • 2.Sc4#
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sc8#
        • 2.Se8#
      • 1...Sxb7
        • 2.Se4#
      • 1...Sxf3
        • 2.Sc4#
      • 1...Sxf7
        • 2.Sc4#
      • 1...cxb6
        • 2.Se8#
      • 1...exf6
        • 2.Sc8#
      • 1...Sb3
        • 2.Se4#
      • 1...Scd3
        • 2.Se4#
      • 1...Sa4
        • 2.Se4#
      • 1...Se4
        • 2.Sxe4#
      • 1...Sa6
        • 2.Se4#
      • 1...Scd7
        • 2.Se4#
      • 1...Sed3
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sg4
        • 2.Sc4#
      • 1...Sg6
        • 2.Sc4#
      • 1...Sed7
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK,XS(E)::S(C)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • S(a);N_GUARD,XR(D)::S(E)
      • S(b);N_GUARD,XB(B)::S(C)
      • S(b);N_GUARD,XR(F)::S(C)
      • P(f);XS(C)::S(E)
      • P(g);XS(E)::S(C)
      • S(a);N_GUARD::S(E)
      • S(a);N_GUARD::S(E),XS(a)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
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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).