MESON Chess Problem Database

Problem Display
PID: 175064 (4n3/4N2p/2R4P/2R4P/3p2k1/6P1/6K1/8 w - - 0 1)

Prikryl, Bohuzlav

Sachove listy, 1902

4n3/4N2p/2R4P/2R4P/3p2k1/6P1/6K1/8

#2

7 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sg8?
      • 1...Sd6
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sc7
        • 2.Sf6#
      • 1...Sg7
        • 2.Sf6#
      • 1...d3!
  • Keys
    • 1.Sd5!
      • 1...Kf5
        • 2.Sf6#
      • 1...Kg5
        • 2.Se3#
      • 1...Kxh5
        • 2.Se3#
      • 1...Sd6
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sc7
        • 2.Sf6#
      • 1...Sg7
        • 2.Sf6#
      • 1...d3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • S(d);N_GUARD::S(G)
        • S(d);N_GUARD::S(G),XS(d)
      • Refutation
        • P(a);
  • Actual
    • S(G);
    • Vars
      • K(b);S_FLIGHT::R(C)+S(G)
      • K(b);P-FLIGHT::R(C)+S(G)
      • K(b);S_FLIGHT,XP(D)::R(C)+S(G)
      • S(d);N_GUARD::S(G)
      • S(d);N_GUARD::S(G),XS(d)
      • P(a);N_GUARD::S(G)
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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).