MESON Chess Problem Database

Problem Display
PID: 263808 (8/8/3N4/Pp1Bn3/3k1NpQ/3bn3/3P4/2K5 w - - 0 1)

Okkinga, AS

4th HM., Tijdschrift vd NSB, 1894

8/8/3N4/Pp1Bn3/3k1NpQ/3bn3/3P4/2K5

#2

7 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd5
      • 2.Se6#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qa7#
      • 1...Kc5
        • 2.Sf5#
      • 1...Sxd5
        • 2.Se6#
      • 1...S3c4
        • 2.Sxb5#
      • 1...Sf3
        • 2.Qxe3#
      • 1...S5c4
        • 2.Sxb5#
      • 1...Sc6
        • 2.Qxe3#
      • 1...Sg6
        • 2.Qxe3#
      • 1...Sd7
        • 2.Qxe3#
      • 1...Sf7
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK,XB(F)::S(C)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)
    • Vars
      • K(c);S_CUTB(a),S_CUTS(b),S_FLIGHT::QAB(D)+S(G)
      • S(b);SBLOCK,XB(F)::S(C)
      • S(b);S_CUTB(a)::S(G),XP(e)
      • S(f);OGATE::QAB1(D),XS(b)
      • S(f);S_CUTB(a)::S(G),XP(e)
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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).