MESON Chess Problem Database

Problem Display
PID: 208027 (8/1bK5/4p3/3pkn1N/1NPr2R1/5P2/5B2/8 w - - 0 1)

Vorrath, August

Dubuque Chess Journal, 1873

8/1bK5/4p3/3pkn1N/1NPr2R1/5P2/5B2/8

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sxd3#
    • 1...Re4
      • 2.Sd3#
    • 1...Rf4
      • 2.Sd3#
    • 1...Rxg4
      • 2.Sd3#
    • 1...Ba6
      • 2.Sc6#
    • 1...Bc6
      • 2.Sxc6#
    • 1...Bc8
      • 2.Sc6#
  • Keys
    • 1.Re4+!
      • 1...Rxe4
        • 2.Sd3#
      • 1...dxe4
        • 2.f4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::S(C),XR(a)
    • R(a);N_GUARD::S(C)
    • R(a);N_GUARD,XR(E)::S(C)
    • B(f);N_GUARD::S(C)
    • B(f);N_GUARD::S(C),XB(f)
  • Actual
    • R(E);CHECK
    • Vars
      • R(a);XR(E)::S(C)
      • P(b);SBLOCK,XR(E)::P(B)
HTML5 logo

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).