MESON Chess Problem Database

Problem Display
PID: 264229 (5B1r/2q2N1k/4pbRp/3rPp1P/5P2/3B4/6PK/3Q4 w - - 0 1)

Cech, Karel

Prace, 1965

5B1r/2q2N1k/4pbRp/3rPp1P/5P2/3B4/6PK/3Q4

#2

10 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rg8
      • 2.Rxh6#
    • 1...Bh4
      • 2.Rg7#
    • 1...Bg5
      • 2.Rg7#
    • 1...Be7
      • 2.Rg7#
    • 1...Bg7
      • 2.Rxg7#
    • 1...Bd8
      • 2.Rg7#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Rxh6#
      • 1...fxg4
        • 2.Rg7#
      • 1...Bg7
        • 2.Rxg7#
      • 1...Bg5
        • 2.Rg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(h);SBLOCK::R1(H),XP(e)
    • B(d);N_GUARD::R1(H)
    • B(d);N_GUARD::R1(H),XB(d)
  • Actual
    • Q(A);
    • Threat
      • R1(H),XP(e)
    • Vars
      • P(b);XQ(A)::B(D)+R(H),DCHECK
      • B(d);N_GUARD::R1(H),XB(d)
      • B(d);N_GUARD::R1(H)
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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).