MESON Chess Problem Database

Problem Display
PID: 208886 (5Kn1/5N1b/4p2p/3k3r/2R1pPP1/pB2R3/P3P3/1nbN4 w - - 0 1)

Barrier, ?

2nd Prize, American Chess Journal (Letter Ty.), 1876

5Kn1/5N1b/4p2p/3k3r/2R1pPP1/pB2R3/P3P3/1nbN4

#2

10 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Sxe3#
    • 1...Sd2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
  • Keys
    • 1.Rec3!
      • threat
        • 2.Ra4#
        • 2.Rb4#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sd2
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(b);XR(E)::S(A),XB(b)
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD::S(A),XS(a)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • S(a);XR(E)::S(A),XS(a)
      • S(a);S_CUTB(b)::S(A)
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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).