MESON Chess Problem Database

Problem Display
PID: 143207 (B7/4K2Q/2q1p3/1N1kr3/1pn3P1/1P1N4/2P2P2/8 w - - 0 1)

White, Alain Campbell

British Chess Magazine, 1893

B7/4K2Q/2q1p3/1N1kr3/1pn3P1/1P1N4/2P2P2/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qb7+
      • 2.Bxb7#
    • 1...Rg5
      • 2.Qh1#
  • Keys
    • 1.Qh8!
      • 1...Qb7+
        • 2.Bxb7#
      • 1...Ke4
        • 2.Qh1#
      • 1...Qxa8
        • 2.Qxa8#
      • 1...Re1
        • 2.Qd4#
      • 1...Re2
        • 2.Qd4#
      • 1...Re3
        • 2.Qd4#
      • 1...Re4
        • 2.Sc7#
      • 1...Rf5
        • 2.Qd4#
      • 1...Rg5
        • 2.Qd4#
        • 2.Qh1#
      • 1...Rh5
        • 2.Qd4#
      • 1...Sb2
        • 2.Qxe5#
      • 1...Sd2
        • 2.Qxe5#
      • 1...Sa3
        • 2.Qxe5#
      • 1...Se3
        • 2.Qxe5#
      • 1...Sa5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 1
  • Sets
    • Q(e);CHECK,OGATEB::B(I),XQ(e)
    • R(d);N_GUARD::QAB(H)
  • Actual
    • Q(H);
    • Vars
      • Q(e);CHECK,OGATEB::B(I),XQ(e)
      • K(c);S_FLIGHT::QAB(H)
      • Q(e);N_SPINQ(e),OGATE,XB(I)::QAB(H),XQ(e)
      • R(d);OGATE::QAR1(H)
      • R(d);SBLOCK::S(F)
      • S(b);N_GUARD::QAR1(H),XR(d)
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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).