MESON Chess Problem Database

Problem Display
PID: 266278 (2R2b2/1p3BN1/5n2/Qn1PP1R1/p1pk4/r3pK2/4P3/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schweizerische Schachzeitung, 2019

2R2b2/1p3BN1/5n2/Qn1PP1R1/p1pk4/r3pK2/4P3/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Se6#
    • 1...Sd6
      • 2.Se6#
    • 1...Sa7
      • 2.Se6#
    • 1...Sxd5
      • 2.Se6#
  • Keys
    • 1.d6!
      • threat
        • 2.Rxc4#
      • 1...Sxd6
        • 2.Se6#
      • 1...Rc3
        • 2.Qb6#
      • 1...Sc7
        • 2.Sf5#
      • 1...Sd5
        • 2.Se6#
      • 1...c3
        • 2.Rc4#
        • 2.Qb4#
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(f);::S(H)
    • S(g);SBLOCK,XP(D)::S(H)
  • Actual
    • P(D);
    • Threat
      • R1(I),XP(d)
    • Vars
      • S(f);XP(D)::S(H)
      • R(a);SBLOCK::QAB(C)
      • S(f);::S(H)
      • S(g);SBLOCK::S(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).