MESON Chess Problem Database

Problem Display
PID: 121114 (1B1K4/8/3N4/2N1k2P/1P5P/8/BP4P1/8 w - - 0 1)

Niemeijer, Meindert

Inspanning en Ontspanning, 1969

1B1K4/8/3N4/2N1k2P/1P5P/8/BP4P1/8

#2

10 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sf5#
  • Tries
    • 1.Ke7?
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf4!
    • 1.Sde4+?
      • 1...Kf5
        • 2.Be6#
      • 1...Kd4!
    • 1.Se8+?
      • 1...Kf5
        • 2.Be6#
      • 1...Kd4!
    • 1.g3?
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf6!
    • 1.g4?
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf6
        • 2.Se8#
      • 1...Kf4!
  • Keys
    • 1.Be6!
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf4
        • 2.Sc4#
      • 1...Kf6
        • 2.Se8#

FEATURES

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