Problem Display
PID: 198806 (8/1PPPP3/3k1N2/K5P1/3B4/8/8/8 w - - 0 1)

Farago, Paul

Hetfoi Ujsag, 1921

8/1PPPP3/3k1N2/K5P1/3B4/8/8/8

#2

8 + 1


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Tries
    • 1.d8Q+?
      • 1...Kc6
        • 2.c8Q#
      • 1...Ke6!
  • Keys
    • 1.d8S!
      • 1...Kxc7
        • 2.Be5#
      • 1...Kxe7
        • 2.Bc5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(G);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(G);
    • Vars
      • K(a);S_FLIGHT,XP(F)::B(A)
      • K(a);S_FLIGHT,XP(H)::B(A)


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).