MESON Chess Problem Database

Problem Display
PID: 169803 (4N1k1/3K4/6P1/5N1P/8/8/8/8 w - - 0 1)

Hannelius, Jan Ingvar

Hufvudstadsbladet, 1945

4N1k1/3K4/6P1/5N1P/8/8/8/8

#2

5 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sh6+?
      • 1...Kf8
        • 2.g7#
      • 1...Kh8!
    • 1.Sf6+?
      • 1...Kh8
        • 2.g7#
      • 1...Kf8!
  • Keys
    • 1.g7!
      • 1...Kf7
        • 2.Sh6#
      • 1...Kh7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::P(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(a);S_FLIGHT::S(A)
      • K(a);S_FLIGHT::S(E)
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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).