MESON Chess Problem Database

Problem Display
PID: 178758 (4n3/8/2R1P1R1/4k3/4P3/4K3/8/8 w - - 0 1)

Froberg, Johan Hilding Laurentius

Springaren, 1983

4n3/8/2R1P1R1/4k3/4P3/4K3/8/8

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Rc5#
    • 1...Sf6
      • 2.Rg5#
  • Keys
    • 1.e7!
      • threat
        • 2.Rc5#
        • 2.Rce6#
        • 2.Rg5#
        • 2.Rge6#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sc7
        • 2.Rg5#
      • 1...Sg7
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R(C)
    • S(b);SBLOCK::R(E)
  • Actual
    • P(D);
    • Threat
      • DUALS(4)
    • Vars
      • S(b);::R(C)
      • S(b);::R(E)
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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).