MESON Chess Problem Database

Problem Display
PID: 241493 (8/K7/2bp4/2k5/2B5/2P5/8/5Q2 w - - 0 1)

Hjelle, David

Schweizerische Arbeiter Schachzeitung, 1975

8/K7/2bp4/2k5/2B5/2P5/8/5Q2

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Ba6!
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Qf5#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Bd5
        • 2.Qb5#
      • 1...d5
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • B(b);N_GUARD::QAR1(A),XB(b)
      • B(b);N_GUARD,SBLOCK::QAR1(A)
      • P(c);OGATEB,SBLOCK::QAB(A)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).