MESON Chess Problem Database

Problem Display
PID: 102293 (1n3k1N/4pBp1/5N2/5pn1/8/Q7/K7/8 w - - 0 1)

Olson, Anders Elis Waldemar

Dagens Nyheter, 1916

1n3k1N/4pBp1/5N2/5pn1/8/Q7/K7/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Sh7#
    • 1...Sh3
      • 2.Sh7#
    • 1...Se4
      • 2.Sh7#
    • 1...Se6
      • 2.Sh7#
    • 1...Sxf7
      • 2.Sg6#
    • 1...Sh7
      • 2.Sxh7#
    • 1...Sa6
      • 2.Sd7#
    • 1...Sc6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
  • Keys
    • 1.Qh3!
      • 1...Sxh3
        • 2.Sh7#
      • 1...Sxf7
        • 2.Sg6#
      • 1...exf6
        • 2.Qa3#
      • 1...gxf6
        • 2.Qh6#
      • 1...e5
        • 2.Qa3#
      • 1...e6
        • 2.Qa3#
      • 1...g6
        • 2.Qh6#
      • 1...Sf3
        • 2.Sh7#
      • 1...Se4
        • 2.Sh7#
      • 1...Se6
        • 2.Sh7#
      • 1...Sh7
        • 2.Sxh7#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...f4
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::S(C)
    • S(b);SBLOCK,XB(D)::S(E)
    • S(b);N_GUARD::S(C),XS(b)
    • S(e);N_GUARD::S(C)
    • S(e);N_GUARD::S(C),XS(e)
  • Actual
    • Q(B);N_PINP(c)
    • Vars
      • S(b);N_GUARD,XQ(B)::S(C)
      • S(b);SBLOCK,XB(D)::S(E)
      • P(c);OGATEB,XS(C)::QAB(B)
      • P(d);OGATEB,XS(C)::QAB(B)
      • P(c);OGATEB::QAB(B)
      • P(d);OGATEB::QAB(B)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
      • S(e);N_GUARD::S(C)
      • S(e);N_GUARD::S(C),XS(e)
      • P(a);OGATE::QAR(B)
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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).