Problem Display
PID: 24441 (2N5/2pp4/3N1K2/3k4/1P2p3/4P3/4B3/8 w - - 0 1)

Barry, Henry William

Checkmate, 1902

2N5/2pp4/3N1K2/3k4/1P2p3/4P3/4B3/8

#2

6 + 4


14665 Knights and Bishops 1909

SOLUTION


  • SOUND
  • Sets
    • 1...cxd6
      • 2.Se7#
    • 1...c6
      • 2.Bc4#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Bxe4#
      • 1...Kc6
        • 2.Bxe4#
      • 1...cxd6
        • 2.Se7#
      • 1...exd3!
    • 1.Bb5?
      • 1...cxd6
        • 2.Sb6#
        • 2.Se7#
      • 1...c6
        • 2.Bc4#
      • 1...c5!
  • Keys
    • 1.Ba6!
      • 1...Kc6
        • 2.Bb7#
      • 1...cxd6
        • 2.Se7#
      • 1...c5
        • 2.Bb7#
      • 1...c6
        • 2.Bc4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XS(D)::S(F)
    • P(c);SBLOCK::B(A)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A),XP(a)
      • Vars
        • K(b);S_FLIGHT::B(A),XP(a)
        • P(c);SBLOCK,XS(D)::S(F)
      • Refutation
        • P(a);XB(A)
    • Try
      • B(A);
      • Vars
        • P(c);SBLOCK::B(A)
      • Refutation
        • P(c);
  • Actual
    • B(A);
    • Vars
      • K(b);S_FLIGHT::B(A)
      • P(c);SBLOCK,XS(D)::S(F)
      • P(c);N_GUARD::B(A)
      • P(c);SBLOCK::B(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).