MESON Chess Problem Database

Problem Display
PID: 140244 (8/4K3/4B3/4k3/2pppp2/2r4N/8/4B1N1 w - - 0 1)

Verdonk, Johannes Bernardus

Probleemblad, 1975

8/4K3/4B3/4k3/2pppp2/2r4N/8/4B1N1

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Bxc3#
    • 1...f3
      • 2.Bg3#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sf7#
      • 1...d3
        • 2.Bxc3#
      • 1...f3
        • 2.Bg3#
      • 1...e3
        • 2.S1f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::B(A),XR(a)
    • P(e);OGATEB::B(A)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • P(c);OGATEB::B(A),XR(a)
      • P(e);OGATEB::B(A)
      • P(d);N_GUARD,S_CUTR(a)::S(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).