MESON Chess Problem Database

Problem Display
PID: 234784 (k1K5/p7/8/8/Nn6/1BN5/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2016

k1K5/p7/8/8/Nn6/1BN5/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Bd5#
    • 1...Sc2
      • 2.Bd5#
    • 1...Sd3
      • 2.Bd5#
    • 1...Sd5
      • 2.Bxd5#
    • 1...Sa6
      • 2.Bd5#
  • Tries
    • 1.Bd5+?
      • 1...Sc6
        • 2.Bxc6#
      • 1...Sxd5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc7#
      • 1...Sd5
        • 2.Bxd5#
      • 1...Sa6
        • 2.Bd5#
      • 1...a5
        • 2.Sb6#
      • 1...a6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::B(A)
    • S(a);N_GUARD::B(A),XS(a)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(A),XS(a)
      • Refutation
        • S(a);XB(A)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • S(a);N_GUARD::B(A),XS(a)
      • S(a);N_GUARD::B(A)
      • P(b);N_GUARD::S(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).