Problem Display
PID: 7555 (8/4n3/R4p2/2k3B1/K1Pp2N1/1P2r3/8/2N5 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1991

8/4n3/R4p2/2k3B1/K1Pp2N1/1P2r3/8/2N5

#2

7 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...Re1
      • 2.Sd3#
    • 1...Re2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Re4
      • 2.Sd3#
    • 1...Re5
      • 2.Sd3#
    • 1...Re6
      • 2.Sd3#
    • 1...d3
      • 2.Bxe3#
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd7#
        • 2.b4#
      • 1...Rxb3
        • 2.Sxb3#
      • 1...Rxe5
        • 2.Sd3#
      • 1...fxe5
        • 2.Bxe7#
      • 1...Sc6
        • 2.Rxc6#
      • 1...d3
        • 2.Bxe3#
      • 1...Sd5
        • 2.Sd7#
        • 2.Rc6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(a);N_GUARD::S(A)
    • R(a);N_GUARD::S(A),XR(a)
    • P(b);OGATEB::B(F),XR(a)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);XP(B)::S(A),XR(a)
      • R(a);N_GUARD,XS(E)::S(A)
      • P(d);OGATE,XS(E)::B(F),XS(e)
      • S(e);N_GUARD::R1(G),XS(e)
      • P(b);OGATEB::B(F),XR(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).