Problem Display
PID: 198528 (2b1rr2/4bkp1/p4q2/2P2Q2/8/7N/4BK2/8 w - - 0 1)

Ravensworth, Lord

Land and Water, 1871

(First published on Sat Dec 23 1871)

2b1rr2/4bkp1/p4q2/2P2Q2/8/7N/4BK2/8

#2

5 + 8


15239 Valois Notebooks 2019

SOLUTION


  • SOUND
  • Keys
    • 1.Bc4+!
      • 1...Be6
        • 2.Bxe6#

FEATURES


  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(A);CHECK
    • Vars
      • B(f);N_GUARD,P_SPINB(f)::B(A),XB(f)


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).