MESON Chess Problem Database

Problem Display
PID: 254902 (k1Bn4/8/1K3R2/8/8/8/7B/3b4 w - - 0 1)

Kovalenko, V?

Zadachi i Etyudi, 2006

k1Bn4/8/1K3R2/8/8/8/7B/3b4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Bb7#
    • 1...Se6
      • 2.Bb7#
    • 1...Sb7
      • 2.Bxb7#
    • 1...Sf7
      • 2.Bb7#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Ra5#
      • 1...Sc6
        • 2.Bb7#
      • 1...Sb7
        • 2.Bxb7#
      • 1...Be2!
    • 1.Rf8?
      • threat
        • 2.Bb7#
      • 1...Sb7
        • 2.Bxb7#
      • 1...Bf3!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Ra7#
      • 1...Sxf7
        • 2.Bb7#
      • 1...Sc6
        • 2.Bb7#
      • 1...Sb7
        • 2.Bxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::B(D)
    • S(c);N_GUARD::B(D),XS(c)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • S(c);N_GUARD::B(D)
        • S(c);N_GUARD::B(D),XS(c)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Threat
        • B(D)
      • Vars
        • S(c);::R(C)+B(D),DCHECK,XS(c)
      • Refutation
        • B(a);
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • S(c);N_GUARD,XR(C)::B(D)
      • S(c);N_GUARD::B(D)
      • S(c);N_GUARD::B(D),XS(c)
HTML5 logo

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).