MESON Chess Problem Database

Problem Display
PID: 46917 (1B6/7p/2ppP1nR/Rb2k1P1/1NP1P3/1NrpK3/3P4/Qn6 w - - 0 1)

le Grand, Piet

1st HM., Probleemblad, 2003

1B6/7p/2ppP1nR/Rb2k1P1/1NP1P3/1NrpK3/3P4/Qn6

#2

12 + 9

102 Probleemblad 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Sxc6#
    • 1...Sh4
      • 2.Sxd3#
      • 2.Sxc6#
    • 1...Se7
      • 2.Sxd3#
    • 1...Sf8
      • 2.Sxd3#
      • 2.Sxc6#
    • 1...Sh8
      • 2.Sxd3#
      • 2.Sxc6#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sbxc6#
      • 1...Rxc4
        • 2.Sxd3#
      • 1...Se7
        • 2.Sf3#
      • 1...c5!
    • 1.Rxg6?
      • threat
        • 2.Sxd3#
        • 2.Sxc6#
      • 1...c5
        • 2.Sxd3#
      • 1...hxg6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sbxd3#
      • 1...Bxc4
        • 2.Sxc6#
      • 1...Sf4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(h);::S(E),XP(f)
    • S(h);::S(E),XP(c)
  • Tries
    • Try
      • S(C);N_PINR(b)
      • Threat
        • S(E),XP(f)
      • Vars
        • R(b);N_GUARD,XP(F)::S(E),XP(c)
        • S(h);::S(C)
      • Refutation
        • P(f);N_SPINB(d)
    • Try
      • R(K);XS(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);N_SPINB(d)::S(E),XP(c)
      • Refutation
        • P(i);XR(K)
  • Actual
    • S(C);N_PINB(d)
    • Threat
      • S(E),XP(c)
    • Vars
      • B(d);N_GUARD,XP(F)::S(E),XP(f)
      • S(h);::S(C)
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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).