MESON Chess Problem Database

Problem Display
PID: 231301 (1b6/8/7R/2nk2N1/3p1P2/3P1K1B/b7/2R5 w - - 0 1)

van Dijk, Johannes

De Standaard, 1927

1b6/8/7R/2nk2N1/3p1P2/3P1K1B/b7/2R5

#2

7 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.dxc4#
    • 1...Se4
      • 2.dxe4#
  • Keys
    • 1.Se4!
      • threat
        • 2.Rxc5#
      • 1...Sxd3
        • 2.Be6#
      • 1...Sxe4
        • 2.dxe4#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Bc4
        • 2.dxc4#
      • 1...Ba7
        • 2.Rd6#
      • 1...Sb3
        • 2.Be6#
      • 1...Sa4
        • 2.Be6#
      • 1...Sa6
        • 2.Be6#
      • 1...Se6
        • 2.Bxe6#
      • 1...Sb7
        • 2.Be6#
      • 1...Sd7
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::P(B),XB(a)
    • S(c);OGATE::P(B),XS(c)
  • Actual
    • S(F);
    • Threat
      • R1(A),XS(c)
    • Vars
      • S(c);N_GUARD,XP(B)::B(D)
      • S(c);OGATE,XS(F)::P(B),XS(c)
      • B(e);N_GUARD::R1(G),XB(e)
      • B(a);OGATE::P(B),XB(a)
      • B(e);N_GUARD::R1(G)
      • S(c);N_GUARD::B(D)
      • S(c);N_GUARD::B(D),XS(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).