MESON Chess Problem Database

Problem Display
PID: 207264 (8/2n3r1/2q3r1/2NkbBR1/2N3Q1/2P3n1/2b3K1/8 w - - 0 1)

von Bilow, Ludwig Immanuel

Neue Berliner Schachzeitung, 1869

8/2n3r1/2q3r1/2NkbBR1/2N3Q1/2P3n1/2b3K1/8

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc3
      • 2.Be6#
    • 1...Bd4
      • 2.Be6#
      • 2.Qxd4#
    • 1...Bf4
      • 2.Be6#
    • 1...Bd6
      • 2.Be6#
      • 2.Qd4#
    • 1...Bf6
      • 2.Be6#
  • Keys
    • 1.Qd4+!
      • 1...Bxd4
        • 2.Be6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(d);XP(B)::R(G)+B(F),DCHECK
    • B(d);::R(G)+B(F),DCHECK
  • Actual
    • Q(D);CHECK
    • Vars
      • B(d);XQ(D)::R(G)+B(F),DCHECK
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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).