MESON Chess Problem Database

Problem Display
PID: 275708 (8/4R2B/5p1K/8/5kN1/q2p2R1/3P1B1p/5n1b w - - 0 1)

Wertheim, David R

Probleemblad, 1953

8/4R2B/5p1K/8/5kN1/q2p2R1/3P1B1p/5n1b

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Rxe4#
    • 1...Se3
      • 2.dxe3#
  • Keys
    • 1.Se5!
      • threat
        • 2.Rg4#
      • 1...Qxe7
        • 2.Sxd3#
      • 1...Sxg3
        • 2.Be3#
      • 1...fxe5
        • 2.Rf7#
      • 1...f5
        • 2.Sg6#
      • 1...Bf3
        • 2.Rxf3#
      • 1...Se3
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::R1(F),XB(b)
    • S(a);OGATE::P(A),XS(a)
  • Actual
    • S(D);
    • Threat
      • R1(C)
    • Vars
      • Q(d);N_GUARD,XR(F)::S(D),XP(e)
      • S(a);N_GUARD,SBLOCK,XR(C)::B(B)
      • P(g);OGATEB,SBLOCK,XS(D)::R(F)
      • P(g);SBLOCK::S(D)
      • B(b);N_GUARD::R1(C),XB(b)
      • S(a);OGATE::P(A),XS(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).