MESON Chess Problem Database

Problem Display
PID: 72025 (8/b1Q1R3/8/3p4/3k4/3P1K2/4P3/1b6 w - - 0 1)

Lyris, Basil D

Hlas l'udu, 1973

8/b1Q1R3/8/3p4/3k4/3P1K2/4P3/1b6

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.e3#
    • 1...Bc5
      • 2.Qe5#
  • Tries
    • 1.Rf7?
      • threat
        • 2.Rf4#
      • 1...Bxd3
        • 2.e3#
      • 1...Bc5!
    • 1.Rg7?
      • threat
        • 2.Rg4#
      • 1...Bxd3
        • 2.e3#
      • 1...Bc5!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rh4#
      • 1...Bxd3
        • 2.e3#
      • 1...Bc5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XP(B)::P(A)
    • B(d);SBLOCK::QAB1(D)
  • Tries
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • B(a);SBLOCK,XP(B)::P(A)
      • Refutation
        • B(d);
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • B(a);SBLOCK,XP(B)::P(A)
      • Refutation
        • B(d);
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • B(a);SBLOCK,XP(B)::P(A)
      • B(d);SBLOCK::QAB(D)
HTML5 logo

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).