Problem Display
PID: 17183 (8/4P2P/6k1/8/5K2/8/8/8 w - - 0 1)

Dehler, Otto Georg Edgar

Deutsche Schachzeitung, 1925

8/4P2P/6k1/8/5K2/8/8/8

#2

3 + 1


15148 Sadier Collection 2013

SOLUTION


  • SOUND
  • Tries
    • 1.e8Q+?
      • 1...Kf6
        • 2.h8Q#
        • 2.h8B#
      • 1...Kh6
        • 2.h8Q#
      • 1...Kg7
        • 2.h8Q#
      • 1...Kxh7!
  • Keys
    • 1.h8Q!
      • 1...Kf7
        • 2.e8Q#

FEATURES


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


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).