MESON Chess Problem Database

Problem Display
PID: 69401 (8/1K5n/1p3p2/3R4/4k1N1/B3Pp2/B4P2/1nN5 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1897

8/1K5n/1p3p2/3R4/4k1N1/B3Pp2/B4P2/1nN5

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Sxf6#
    • 1...Sf8
      • 2.Sxf6#
    • 1...f5
      • 2.Rd4#
      • 2.Re5#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Bxb1#
        • 2.Rf4#
      • 1...Sxa3
        • 2.Rf4#
      • 1...Sd2
        • 2.Rf4#
      • 1...Sc3
        • 2.Rf4#
      • 1...Kxf5!
  • Keys
    • 1.Sb3!
      • 1...Kxd5
        • 2.Sd2#
      • 1...Sxa3
        • 2.Sd2#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sg5
        • 2.Sxf6#
      • 1...Sf8
        • 2.Sxf6#
      • 1...b5
        • 2.Sc5#
      • 1...f5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD::S(F),XP(e)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XB(D)::R1(G)
        • S(a);::R1(G)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • S(A);
    • Vars
      • K(c);S_FLIGHT,XR(G)::B(B)+S(A)
      • S(a);N_GUARD,XB(D)::S(A)
      • S(a);N_GUARD::S(A),XS(a)
      • S(a);N_GUARD::S(A)
      • S(f);N_GUARD::S(F),XP(e)
      • P(d);N_GUARD::S(A)
      • P(e);SBLOCK::R1(G)
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).