Problem Display
PID: 2439 (8/8/3pp3/R6B/2kB4/8/8/4K3 w - - 0 1)

Speckmann, Werner

Freie Presse, 1967

(First published on Fri Apr 21 1967)

8/8/3pp3/R6B/2kB4/8/8/4K3

#2

4 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Ra4+!
      • 1...Kb3
        • 2.Bd1#
      • 1...Kd3
        • 2.Bg6#
      • 1...Kb5
        • 2.Be8#
      • 1...Kd5
        • 2.Bf3#

This is a version of 206920

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(C);CHECK
    • Vars
      • K(a);S_FLIGHT::B(D)


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).