MESON Chess Problem Database

Problem Display
PID: 151417 (8/rN2p2K/1pp3p1/2P3P1/2P1k2n/4PpRB/5Pp1/B2R2N1 w - - 0 1)

le Grand, Henk

1st Comm., Probleemblad, 2013

8/rN2p2K/1pp3p1/2P3P1/2P1k2n/4PpRB/5Pp1/B2R2N1

#2

12 + 9

102 Probleemblad 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Rg4#
    • 1...bxc5
      • 2.Sxc5#
  • Tries
    • 1.Bh8?
      • threat
        • 2.Rd4#
      • 1...bxc5
        • 2.Sxc5#
      • 1...Sf5
        • 2.Rg4#
      • 1...e5!
    • 1.Bd7?
      • threat
        • 2.Rg4#
      • 1...e6
        • 2.Sd6#
      • 1...Rxa1!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Rd4#
      • 1...bxc5
        • 2.Sxc5#
      • 1...Sf5
        • 2.Rg4#
      • 1...e5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::R(F)
    • P(e);XP(I)::S(K),XP(e)
  • Tries
    • Try
      • B(A);
      • Threat
        • R1(B)
      • Vars
        • P(e);XP(I)::S(K),XP(e)
        • S(d);SBLOCK::R(F)
      • Refutation
        • P(i);P_PINS(K)
    • Try
      • B(G);
      • Threat
        • R(F)
      • Vars
        • P(i);N_GUARD::S(K)
      • Refutation
        • R(h);XB(A)
  • Actual
    • B(A);
    • Threat
      • R1(B)
    • Vars
      • P(e);XP(I)::S(K),XP(e)
      • S(d);SBLOCK::R(F)
      • P(i);N_GUARD::S(K)
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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).