MESON Chess Problem Database

Problem Display
PID: 229155 (5NB1/4Rp1P/5p1K/2b2kP1/2Q3N1/3rp3/8/4n2b w - - 0 1)

Zilahi, Zoltan

Ujsag, 1926

5NB1/4Rp1P/5p1K/2b2kP1/2Q3N1/3rp3/8/4n2b

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxe4#
    • 1...Sg2
      • 2.Qe4#
    • 1...Sf3
      • 2.Qe4#
    • 1...fxg5
      • 2.Re5#
      • 2.Rxf7#
  • Keys
    • 1.Sg6!
      • threat
        • 2.Sh4#
        • 2.Qf4#
      • 1...Bxe7
        • 2.Sh4#
        • 2.Sxe7#
      • 1...fxg5
        • 2.Re5#
        • 2.Rxf7#
      • 1...fxg6
        • 2.Be6#
      • 1...Rd4
        • 2.Sxe3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bd4
        • 2.Qc8#
      • 1...Bd6
        • 2.Sh4#
        • 2.Qc8#
      • 1...Sg2
        • 2.Qe4#
      • 1...Sf3
        • 2.Qe4#
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::QAB1(A),XB(b)
    • S(a);S_CUTB(b)::QAB1(A)
  • Actual
    • S(G);
    • Threat
      • DUALS(2)
    • Vars
      • P(h);OGATE,XS(G)::B(H)
      • R(c);N_GUARD,S_CUTB(e)::S(B),XP(d)
      • B(b);N_GUARD::QAB1(A),XB(b)
      • B(e);OGATE::QAB(A)
      • S(a);S_CUTB(b)::QAB1(A)
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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).