Problem Display
PID: 232306 (8/5PkP/4P3/8/6KB/8/8/8 w - - 0 1)

Evdokimov, Aleksey

Kudesnik, 2007

8/5PkP/4P3/8/6KB/8/8/8

#2

5 + 1


15148 Sadier Collection 2021
5454 Near Snap 2023

SOLUTION


  • SOUND
  • Sets
    • 1...Kf8
      • 2.h8Q#
  • Tries
    • 1.h8Q+?
      • 1...Kg6
        • 2.f8S#
      • 1...Kxh8!
  • Keys
    • 1.f8S!
      • 1...Kh6
        • 2.h8Q#
      • 1...Kxf8
        • 2.h8Q#
      • 1...Kh8
        • 2.Bf6#

Anticipated by 32673(1873), 224411(1888)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::P=Q
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);S_FLIGHT,XS(D)::P=Q
      • K(a);S_FLIGHT::B(B)


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).