Problem Display
PID: 131911 (2N5/1R6/2n5/kP6/5p2/1P2B3/1K6/8 w - - 0 1)

Noto, V

L'Eco degli Scacchi, 1901

2N5/1R6/2n5/kP6/5p2/1P2B3/1K6/8

#2

6 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Sd4
      • 2.Bd2#
    • 1...Se5
      • 2.Bd2#
    • 1...Sa7
      • 2.Bd2#
    • 1...Se7
      • 2.Bd2#
    • 1...Sb8
      • 2.Bd2#
    • 1...Sd8
      • 2.Bd2#
  • Tries
    • 1.Se7?
      • threat
        • 2.Sxc6#
      • 1...Kb4
        • 2.Sxc6#
      • 1...Sxe7
        • 2.Bd2#
      • 1...Sd4
        • 2.Bd2#
      • 1...Se5
        • 2.Bd2#
      • 1...Sa7
        • 2.Bd2#
      • 1...Sb8
        • 2.Bd2#
      • 1...Sd8
        • 2.Bd2#
      • 1...Sb4!
    • 1.Bxf4?
      • 1...Sb4
        • 2.Bc7#
      • 1...Sd4
        • 2.Bd2#
      • 1...Se5
        • 2.Bd2#
      • 1...Sa7
        • 2.Bd2#
      • 1...Se7
        • 2.Bd2#
      • 1...Sb8
        • 2.Bd2#
      • 1...Sd8
        • 2.Bd2#
      • 1...Kb4!
  • Keys
    • 1.Sa7!
      • threat
        • 2.Sxc6#
      • 1...Kb4
        • 2.Sxc6#
      • 1...Sxa7
        • 2.Bd2#
      • 1...Sb4
        • 2.Bb6#
      • 1...Sd4
        • 2.Bd2#
      • 1...Se5
        • 2.Bd2#
      • 1...Se7
        • 2.Bd2#
      • 1...Sb8
        • 2.Bd2#
      • 1...Sd8
        • 2.Bd2#

FEATURES


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


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).