MESON Chess Problem Database

Problem Display
PID: 169934 (8/1kN2B1R/1B6/2P5/4K3/8/8/8 w - - 0 1)

Makihovi, Ilmari

Sosiaalidemokraten, 1945

8/1kN2B1R/1B6/2P5/4K3/8/8/8

#2

6 + 1

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Bd5#
  • Tries
    • 1.Bd5+?
      • 1...Kb8
        • 2.Rh8#
      • 1...Kc8!
    • 1.Be6?
      • 1...Kc6
        • 2.Bd5#
      • 1...Kb8!
  • Keys
    • 1.Sa6!
      • 1...Kxa6
        • 2.Bc4#
      • 1...Kc6
        • 2.Be8#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kc8
        • 2.Be6#

Anticipated by 90264(1940)

This anticipates 18264(1954), 104707(1964-1965), 171998(1970), 35521(1994), 79150(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(D)::B(E)
      • K(a);S_FLIGHT::B(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).