MESON Chess Problem Database

Problem Display
PID: 19303 (4qb2/5p1K/Bp6/2pQ1p2/k7/n7/R1n5/4B3 w - - 0 1)

Mikan, Ilja

Tabor, 1935

4qb2/5p1K/Bp6/2pQ1p2/k7/n7/R1n5/4B3

#2

5 + 9

5505 Dobrodruzstvi 64 poli 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qc4#
    • 1...Sd4
      • 2.Qc4#
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qxc2#
      • 1...Qxe1
        • 2.Qb5#
      • 1...Sxe1
        • 2.Qxa3#
      • 1...Sb4
        • 2.Rxa3#
        • 2.Qxa3#
      • 1...Qb5
        • 2.Bxb5#
        • 2.Qxb5#
      • 1...Qe2
        • 2.Bb5#
      • 1...Qe3
        • 2.Bb5#
        • 2.Qb5#
      • 1...Qe4
        • 2.Bb5#
        • 2.Qb5#
      • 1...Qe6
        • 2.Bb5#
        • 2.Qb5#
      • 1...Sa1
        • 2.Rxa3#
        • 2.Qc4#
        • 2.Qxa3#
      • 1...Se3
        • 2.Rxa3#
        • 2.Qxa3#
      • 1...Sd4
        • 2.Rxa3#
        • 2.Qc4#
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAR2(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XS(a)
    • Vars
      • Q(h);N_GUARD,XB(A)::QAB1(C)
      • S(a);N_GUARD,XB(A)::QAR1(C),XS(b)
      • Q(h);N_GUARD::B(D)
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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).