MESON Chess Problem Database

Problem Display
PID: 124217 (K7/8/1R6/bPk5/1R2P3/1p6/1N1P4/4B3 w - - 0 1)

Zalkind, Lazar Borissovich

Deutsche Schachzeitung, 1907

K7/8/1R6/bPk5/1R2P3/1p6/1N1P4/4B3

#2

8 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb4
      • 2.Bf2#
  • Tries
    • 1.Bh4?
      • 1...Kxb4
        • 2.Be7#
      • 1...Bxb4
        • 2.Bf2#
      • 1...Bxb6
        • 2.Be7#
      • 1...Kxb6!
  • Keys
    • 1.Bg3!
      • 1...Kxb4
        • 2.Bd6#
      • 1...Kxb6
        • 2.Sa4#
      • 1...Bxb4
        • 2.Bf2#
      • 1...Bxb6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK,XR(D)::B(A)
  • Tries
    • Try
      • B(A);
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(A)
        • B(b);SBLOCK,XR(D)::B(A)
        • B(b);SBLOCK,XR(G)::B(A)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • B(A);
    • Vars
      • K(c);S_FLIGHT,XR(D)::B(A)
      • K(c);S_FLIGHT,XR(G)::S(B)
      • B(b);SBLOCK,XR(D)::B(A)
      • B(b);SBLOCK,XR(G)::S(B)
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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).