MESON Chess Problem Database

Problem Display
PID: 205499 (8/p7/8/Nk6/N4p2/p7/p7/K2BB3 w - - 0 1)

Balik, Josef

Prachensky kraj, 1925

8/p7/8/Nk6/N4p2/p7/p7/K2BB3

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Be2#
  • Tries
    • 1.Bg4?
      • 1...Kxa4
        • 2.Bd7#
      • 1...Ka6
        • 2.Be2#
      • 1...a6
        • 2.Bd7#
      • 1...f3!
    • 1.Bh5?
      • 1...Kxa4
        • 2.Be8#
      • 1...Ka6
        • 2.Be2#
      • 1...a6
        • 2.Be8#
      • 1...f3!
  • Keys
    • 1.Bf3!
      • 1...Kxa4
        • 2.Bc6#
      • 1...Ka6
        • 2.Be2#
      • 1...a6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::B(B)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(d);S_FLIGHT,XS(D)::B(B)
        • K(d);S_FLIGHT::B(B)
        • P(e);SBLOCK::B(B)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Vars
        • K(d);S_FLIGHT,XS(D)::B(B)
        • K(d);S_FLIGHT::B(B)
        • P(e);SBLOCK::B(B)
      • Refutation
        • P(c);
  • Actual
    • B(B);
    • Vars
      • K(d);S_FLIGHT,XS(D)::B(B)
      • K(d);S_FLIGHT::B(B)
      • P(e);SBLOCK::B(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).