MESON Chess Problem Database

Problem Display
PID: 71244 (2K1Q3/5p2/1bNp3p/3k4/R3p1n1/Bp1r3B/2n5/2R4b w - - 0 1)

Authier, Gabriel

Le Probleme, 1949

2K1Q3/5p2/1bNp3p/3k4/R3p1n1/Bp1r3B/2n5/2R4b

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Qxe4#
    • 1...Sa1
      • 2.Qxf7#
    • 1...Se1
      • 2.Qxf7#
    • 1...Sxa3
      • 2.Qxf7#
    • 1...Sce3
      • 2.Qxf7#
    • 1...Sb4
      • 2.Qxf7#
    • 1...Sd4
      • 2.Sb4#
    • 1...Se5
      • 2.Se7#
  • Keys
    • 1.Kb7!
      • threat
        • 2.Qxf7#
      • 1...Rf3
        • 2.Qxe4#
      • 1...Sd4
        • 2.Sb4#
      • 1...Se5
        • 2.Se7#
      • 1...f5
        • 2.Qf7#
        • 2.Qg8#
      • 1...f6
        • 2.Qf7#
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(d);S_CUTB(a)::QAB1(G),XP(e)
    • S(b);::QAB(G),XP(k)
    • S(b);XB(B)::QAB(G),XP(k)
    • S(b);N_GUARD,SBLOCK::S(E)
    • S(f);SBLOCK::S(E)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • QAB(G),XP(k)
    • Vars
      • R(d);S_CUTB(a)::QAB1(G),XP(e)
      • S(b);N_GUARD,SBLOCK::S(E)
      • S(f);SBLOCK::S(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).