MESON Chess Problem Database

Problem Display
PID: 207024 (k7/2R5/K2n4/2bq4/Q7/8/8/8 w - - 0 1)

Lange, Max

Handbuch der Schachaufgaben (Lange), 1862

k7/2R5/K2n4/2bq4/Q7/8/8/8

#2

3 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Rc8#
    • 1...Se4
      • 2.Rc8#
    • 1...Sb5
      • 2.Rc8#
    • 1...Sf5
      • 2.Rc8#
    • 1...Sb7
      • 2.Rc8#
    • 1...Sf7
      • 2.Rc8#
    • 1...Sc8
      • 2.Rxc8#
    • 1...Se8
      • 2.Rc8#
  • Keys
    • 1.Qe8+!
      • 1...Sc8
        • 2.Rxc8#
        • 2.Qxc8#
      • 1...Sxe8
        • 2.Rc8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • S(c);N_GUARD::R(C)
    • S(c);N_GUARD::R(C),XS(c)
  • Actual
    • Q(A);CHECK
    • Vars
      • S(c);N_GUARD,XQ(A)::R(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).