MESON Chess Problem Database

Problem Display
PID: 203216 (k7/Bn6/4K3/R3R3/8/5B2/8/8 w - - 0 1)

Ullrich, Ewald

Dresdner Anzeiger, 1924

k7/Bn6/4K3/R3R3/8/5B2/8/8

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Red5!
      • threat
        • 2.Rd8#
      • 1...Sc5+
        • 2.Rdxc5#
      • 1...Sd8+
        • 2.Rxd8#
      • 1...Sxa5
        • 2.Rxa5#
      • 1...Sd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(C);N_PINS(a)
    • Threat
      • R(C)
    • Vars
      • S(a);CHECK,OGATEB::B(A)+R(C),XS(a)
      • S(a);CHECK::B(A)+R(C),DCHECK,XS(a)
      • S(a);OGATE,XR(B)::B(A)+R(C),XS(a)
      • S(a);OGATEB::B(A)+R(C),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).