MESON Chess Problem Database

Problem Display
PID: 84823 (2Q5/6K1/6n1/RB4Pk/4p2P/5n2/5B2/5N2 w - - 0 1)

Petite, Efren

Umenie 64, 2003

2Q5/6K1/6n1/RB4Pk/4p2P/5n2/5B2/5N2

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg5
      • 2.Be2#
  • Tries
    • 1.Be8?
      • threat
        • 2.Bxg6#
      • 1...Sxh4
        • 2.Sg3#
      • 1...Se5!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Sg3#
      • 1...Sfxh4
        • 2.Be2#
      • 1...Sgxh4
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATEB,XP(F)::B(E)
  • Tries
    • Try
      • B(E);P_PINS(d)
      • Threat
        • B(E),XS(d)
      • Vars
        • S(a);SBLOCK,XP(C)::S(A)
      • Refutation
        • S(a);
  • Actual
    • Q(H);
    • Threat
      • S(A)
    • Vars
      • S(a);OGATEB,P_SPINS(a),XP(C)::B(E)
      • S(d);OGATEB,P_SPINS(d),XP(C)::B(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).