Problem Display
PID: 154018 (2kn4/1nP1Pp2/2p1pB2/2P1P3/8/8/8/R3K3 w Q - 0 1)

Binderup, A

Thema Danicum, 1977

2kn4/1nP1Pp2/2p1pB2/2P1P3/8/8/8/R3K3

#2

7 + 6


SOLUTION


  • SOUND
  • Tries
    • 1.cxd8R+?
      • 1...Kc7
        • 2.e8S#
      • 1...Sxd8!
  • Keys
    • 1.Ra7!
      • 1...Kxc7
        • 2.exd8Q#
      • 1...Kd7
        • 2.cxd8Q#
      • 1...Sxc5
        • 2.cxd8Q#
        • 2.cxd8R#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Sa5
        • 2.cxd8Q#
        • 2.cxd8R#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Sd6
        • 2.cxd8Q#
        • 2.cxd8R#
        • 2.exd8Q#
        • 2.exd8R#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(F);CHECK,XS(f)
      • Vars
        • K(e);P-FLIGHT::P=S
      • Refutation
        • S(c);XR(F)
  • Actual
    • R(A);
    • Vars
      • K(e);P-FLIGHT,P_SPINS(c),XP(F)::PXS(f)=Q
      • K(e);S_FLIGHT::PXS(f)=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).