MESON Chess Problem Database

Problem Display
PID: 53112 (n2R2n1/Qp6/1ppP3p/3kpK1N/R7/b7/8/6B1 w - - 0 1)

Zemke, A

Schach-Echo, 1933

n2R2n1/Qp6/1ppP3p/3kpK1N/R7/b7/8/6B1

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Sxf6#
    • 1...e4
      • 2.Sf4#
    • 1...c5
      • 2.Qxb7#
  • Keys
    • 1.Rb4!
      • 1...Se7+
        • 2.dxe7#
      • 1...Bxb4
        • 2.Qa2#
      • 1...c5
        • 2.Qxb7#
      • 1...Bc1
        • 2.Qa2#
      • 1...Bb2
        • 2.Qa2#
      • 1...Sc7
        • 2.dxc7#
      • 1...Sf6
        • 2.Sxf6#
      • 1...e4
        • 2.Sf4#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(i);N_GUARD::S(D),XS(i)
    • P(c);N_GUARD::S(D)
    • P(e);OGATEB::QAB(F),XP(g)
  • Actual
    • R(B);
    • Vars
      • S(i);CHECK,OGATE::R(G)+P(E),XS(i)
      • B(a);OGATE,XR(B)::QAB(F)
      • P(e);OGATEB::QAB(F),XP(g)
      • B(a);OGATE::QAB(F)
      • S(h);OGATE::R(G)+P(E),XS(h)
      • S(i);N_GUARD::S(D),XS(i)
      • P(c);N_GUARD::S(D)
      • P(d);OGATE::QAR1(F)
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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).