MESON Chess Problem Database

Problem Display
PID: 50668 (2B4R/4B3/6nn/8/3N4/6NP/6kP/4K2R w K - 0 1)

Visserman, Eeltje

Provinciale Overijsselche Courant, 1940

2B4R/4B3/6nn/8/3N4/6NP/6kP/4K2R

#2

9 + 3

5227 Schaak..., maar raak! 1969

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Bb7#
    • 1...Sf5
      • 2.Bb7#
    • 1...Sf7
      • 2.Bb7#
    • 1...Sg8
      • 2.Bb7#
  • Tries
    • 1.Rg1+?
      • 1...Kxh2
        • 2.Sf3#
      • 1...Kxg1!
  • Keys
    • 1.Sdf5!
      • 1...Kf3
        • 2.0-0#
      • 1...Kxh3
        • 2.Se3#
      • 1...Sxe7
        • 2.Sh4#
      • 1...Sxh8
        • 2.Sh4#
      • 1...Sxf5
        • 2.Bb7#
      • 1...Sf4
        • 2.Sh4#
      • 1...Sh4
        • 2.Sxh4#
      • 1...Se5
        • 2.Sh4#
      • 1...Sf8
        • 2.Sh4#
      • 1...Sg4
        • 2.Bb7#
      • 1...Sf7
        • 2.Bb7#
      • 1...Sg8
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(c);::B(H)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(C)::S(F)
      • Refutation
        • K(a);P-FLIGHT,XR(B)
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::0-0
      • K(a);P_SPINS(c),S_FLIGHT,XP(E)::B(H)+S(F)
      • S(b);N_GUARD,XB(G)::S(F)
      • S(b);N_GUARD,XR(I)::S(F)
      • S(c);XS(F)::B(H)
      • S(b);N_GUARD::S(F)
      • S(b);N_GUARD::S(F),XS(b)
      • S(c);::B(H)
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).