MESON Chess Problem Database

Problem Display
PID: 54375 (k1K5/p7/3b4/8/R7/2N5/8/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

StrateGems, 2004

k1K5/p7/3b4/8/R7/2N5/8/8

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...a5
      • 2.Rxa5#
    • 1...a6
      • 2.Rxa6#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Rxa7#
      • 1...Bc5
        • 2.Sc7#
      • 1...a5
        • 2.Rxa5#
      • 1...a6
        • 2.Rxa6#
      • 1...Bb8!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sb6#
      • 1...a5
        • 2.Rxa5#
      • 1...a6
        • 2.Rxa6#
      • 1...Bc5
        • 2.Sc7#
      • 1...Bc7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::R(B),XP(b)
  • Tries
    • Try
      • S(A);
      • Threat
        • R1(B),XP(b)
      • Vars
        • B(a);N_GUARD::S(A)
        • P(b);OGATEB::R(B),XP(b)
      • Refutation
        • B(a);
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • P(b);OGATEB::R(B),XP(b)
      • B(a);N_GUARD::S(A)
      • B(a);N_GUARD::S(A),XB(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).