MESON Chess Problem Database

Problem Display
PID: 51082 (5Bb1/2b3p1/2B3P1/2pn1N1Q/2K1kpN1/8/4P3/8 w - - 0 1)

McArthur, William Johnstone

Burnley Express, 1881

5Bb1/2b3p1/2B3P1/2pn1N1Q/2K1kpN1/8/4P3/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Sd6#
    • 1...Be5
      • 2.Sf2#
    • 1...Bb6
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Bd8
      • 2.Sd6#
    • 1...Bh7
      • 2.Bxd5#
  • Tries
    • 1.Qh1+?
      • 1...f3
        • 2.Qxf3#
      • 1...Kxf5!
    • 1.Qh3?
      • threat
        • 2.Qd3#
      • 1...f3
        • 2.Qxf3#
      • 1...Kxf5!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sf2#
      • 1...Bxd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(e);N_GUARD::S(D)
    • B(e);SBLOCK::S(C)
    • B(e);N_GUARD::S(D),XB(e)
    • B(g);N_GUARD::B(F),XS(d)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(E),XP(b)
      • Refutation
        • K(a);N_SPINS(d),S_FLIGHT,XS(D)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);N_SPINS(d),S_FLIGHT,XS(D)
  • Actual
    • B(H);
    • Threat
      • S(C)
    • Vars
      • B(e);XB(H)::S(D),XB(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).