Problem Display
PID: 217451 (8/3P4/3P4/3k4/1PpNpP2/2p1p3/2P1P3/2RK4 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1992

8/3P4/3P4/3k4/1PpNpP2/2p1p3/2P1P3/2RK4

#2

9 + 5


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Kxd6
      • 2.d8Q#
  • Tries
    • 1.Ra1?
      • 1...Kxd6
        • 2.d8Q#
      • 1...Kxd4!
    • 1.Rb1?
      • 1...Kxd6
        • 2.d8Q#
      • 1...Kxd4!
  • Keys
    • 1.Ke1!
      • 1...Kxd4
        • 2.Rd1#
      • 1...Kxd6
        • 2.d8Q#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT,XP(H)::P=Q
  • Tries
    • Try
      • R(A);
      • Vars
        • K(e);P-FLIGHT,XP(H)::P=Q
      • Refutation
        • K(e);P-FLIGHT,XS(F)
    • Try
      • R(A);
      • Vars
        • K(e);P-FLIGHT,XP(H)::P=Q
      • Refutation
        • K(e);P-FLIGHT,XS(F)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(e);OGATEB,P-FLIGHT,XS(F)::R(A)
      • K(e);P-FLIGHT,XP(H)::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).