Problem Display
PID: 249706 (8/7p/5KPk/7p/7p/8/8/8 w - - 0 1)

Lommer, Harold M

British Chess Magazine, 1942

8/7p/5KPk/7p/7p/8/8/8

#2

2 + 4


15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.gxh7?
      • threat
        • 2.h8Q#
        • 2.h8R#
      • 1...h3
        • 2.h8Q#
        • 2.h8R#
      • 1...Kxh7!
  • Keys
    • 1.g7!
      • 1...h3
        • 2.g8S#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);XP(d)
      • Threat
        • P=Q
      • Vars
        • P(a);::P=Q
      • Refutation
        • K(c);P-FLIGHT,XP(B)
  • Actual
    • P(B);
    • Vars
      • P(a);::P=S


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).