MESON Chess Problem Database

Problem Display
PID: 159645 (K7/3N1R2/1p2k1P1/2Pp1p2/3p1p2/8/1B2P3/2b2Q2 w - - 0 1)

Anonymous

BCPJ (May), 1919

K7/3N1R2/1p2k1P1/2Pp1p2/3p1p2/8/1B2P3/2b2Q2

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Sf8#
  • Tries
    • 1.Qxf4?
      • threat
        • 2.Sf8#
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qxf5#
      • 1...bxc5
        • 2.Sxc5#
        • 2.Sf8#
        • 2.Qe5#
      • 1...Bxf4!
  • Keys
    • 1.e4!
      • threat
        • 2.exf5#
      • 1...dxe4
        • 2.Qc4#
      • 1...fxe4
        • 2.Qh3#
      • 1...bxc5
        • 2.Qa6#
      • 1...dxe4 ep
        • 2.Sf8#
      • 1...fxe4 ep
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(b);::S(F)
  • Tries
    • Try
      • Q(A);XP(c)
      • Threat
        • DUALS(4)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • P(C);
    • Threat
      • P(C),XP(e)
    • Vars
      • P(d);OGATEB,XP(C)::QAB(A)
      • P(e);OGATEB,XP(C)::QAB(A)
      • P(f);OGATEB,XP(D)::QAR(A)
      • P(b);EP,XP(C)::S(F)
      • P(c);EP,OGATE,XP(C)::QAB1(A),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).