MESON Chess Problem Database

Problem Display
PID: 261346 (1b5Q/3B1R2/4P3/1p1k2N1/1P3p2/1Ppp4/5P2/K7 w - - 0 1)

Belliboni, Caetano

Neue Zurcher Zeitung, 1988

1b5Q/3B1R2/4P3/1p1k2N1/1P3p2/1Ppp4/5P2/K7

#2

9 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Kd6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Qe5#
      • 1...Be5
        • 2.Qxe5#
      • 1...Ba7
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR1(I),XB(f)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAR1(I)
    • Vars
      • K(e);N_GUARD,S_FLIGHT::B(G)
      • K(e);P-FLIGHT,S_CUTB(f)::QAB1(I)
      • B(f);N_GUARD::QAR1(I),XB(f)
      • B(f);N_GUARD::QAR1(I)
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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).