MESON Chess Problem Database

Problem Display
PID: 70472 (1N3b2/4n1p1/1pQ5/5p2/2pk3n/B6B/1P1K3N/8 w - - 0 1)

Burkill, HR

Source?, 0000

1N3b2/4n1p1/1pQ5/5p2/2pk3n/B6B/1P1K3N/8

#2

7 + 8

187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Sg2
      • 2.Sf3#
    • 1...Sf3+
      • 2.Sxf3#
    • 1...Shg6
      • 2.Sf3#
  • Tries
    • 1.Qxc4+?
      • 1...Ke5
        • 2.Sd7#
      • 1...Kxc4!
  • Keys
    • 1.Bg2!
      • 1...Sf3+
        • 2.Sxf3#
      • 1...c3+
        • 2.Qxc3#
      • 1...Ke5
        • 2.Qd6#
      • 1...Sxg2
        • 2.Sf3#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...Shg6
        • 2.Sf3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Seg6
        • 2.Qd5#
      • 1...Sc8
        • 2.Qd5#
      • 1...Sg8
        • 2.Qd5#
      • 1...f4
        • 2.Qe4#
      • 1...b5
        • 2.Qc5#
      • 1...g5
        • 2.Qf6#
      • 1...g6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::S(C)
    • S(c);CHECK,N_GUARD::S(C),XS(c)
  • Tries
    • Try
      • Q(F);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::S(G)
      • Refutation
        • K(b);P-FLIGHT,XQ(F)
  • Actual
    • B(E);
    • Vars
      • S(c);CHECK,N_GUARD::S(C),XS(c)
      • P(a);CHECK,OGATE::QAB1(F),XP(a)
      • K(b);S_FLIGHT::QAB1(F)
      • S(c);N_GUARD,XB(E)::S(C)
      • S(f);XQ(F)::S(G),XS(f)
      • S(c);N_GUARD::S(C)
      • S(f);N_GUARD::QAR1(F),XS(f)
      • S(f);N_GUARD::QAR1(F)
      • P(d);N_GUARD::QAR1(F)
      • P(e);N_GUARD::QAB1(F)
      • P(g);N_GUARD::QAB(F)
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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).