Problem Display
PID: 236505 (8/1p4r1/b7/2BNkBpN/2pRP3/8/1p4r1/1K2n3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Rochade Europa, 2006

8/1p4r1/b7/2BNkBpN/2pRP3/8/1p4r1/1K2n3

#2

7 + 9


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Rd5#
      • 1...Rd2
        • 2.Sg4#
      • 1...Rd7!
    • 1.Sdf4?
      • threat
        • 2.Rd5#
      • 1...Rd7
        • 2.Sg6#
      • 1...Rd2!
    • 1.Sb6?
      • threat
        • 2.Rd5#
      • 1...Rd7
        • 2.Sxd7#
      • 1...Rd2!
  • Keys
    • 1.Sdf6!
      • threat
        • 2.Rd5#
      • 1...Rd2
        • 2.Sg4#
      • 1...Rd7
        • 2.Sxd7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(B)
      • Vars
        • R(c);N_GUARD::S(E)
      • Refutation
        • R(i);
    • Try
      • S(E);
      • Threat
        • R1(B)
      • Vars
        • R(i);N_GUARD::S(E)
      • Refutation
        • R(c);
    • Try
      • S(E);
      • Threat
        • R1(B)
      • Vars
        • R(i);N_GUARD::S(E),XR(i)
      • Refutation
        • R(c);
  • Actual
    • S(E);
    • Threat
      • R1(B)
    • Vars
      • R(c);N_GUARD::S(E)
      • R(i);N_GUARD::S(E),XR(i)


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).