MESON Chess Problem Database

Problem Display
PID: 109718 (2Nb4/2pp2pB/4n1PB/1R2PkpN/8/K6P/4R3/8 w - - 0 1)

Williams, Philip Hamilton

Montreal Gazette, 1894

2Nb4/2pp2pB/4n1PB/1R2PkpN/8/K6P/4R3/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be7+
      • 2.Sxe7#
    • 1...Sf4
      • 2.Sxg7#
    • 1...g4
      • 2.Sg3#
    • 1...c5
      • 2.Sd6#
    • 1...c6
      • 2.Sd6#
    • 1...gxh6
      • 2.g7#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Sg3#
      • 1...Sf4
        • 2.Sxg7#
      • 1...Sc5
        • 2.Sxg7#
      • 1...Sf8
        • 2.Sxg7#
      • 1...Sd4!
  • Keys
    • 1.Rd5!
      • 1...Be7+
        • 2.Sxe7#
      • 1...gxh6
        • 2.g7#
      • 1...Sd4
        • 2.e6#
      • 1...Sf4
        • 2.Sxg7#
      • 1...Sc5
        • 2.e6#
      • 1...Sf8
        • 2.e6#
      • 1...Bf6
        • 2.exf6#
      • 1...g4
        • 2.Sg3#
      • 1...c5
        • 2.Sd6#
      • 1...c6
        • 2.Sd6#
      • 1...d6
        • 2.exd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(g);CHECK,N_GUARD::S(J),XB(g)
    • S(c);N_GUARD,SBLOCK::S(F),XP(f)
    • P(b);::S(F)
    • P(d);N_GUARD::S(J)
    • P(f);OGATE,XB(H)::B(I)+P(G)
  • Tries
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • S(c);N_GUARD::S(F),XP(f)
      • Refutation
        • S(c);
  • Actual
    • R(D);
    • Vars
      • B(g);CHECK,N_GUARD::S(J),XB(g)
      • P(f);OGATE,XB(H)::B(I)+P(G)
      • S(c);OGATE::R(D)+P(E)
      • S(c);N_GUARD,SBLOCK::S(F),XP(f)
      • B(g);OGATE::R(D)+P(E),XB(g)
      • P(b);::S(F)
      • P(d);N_GUARD::S(J)
      • P(e);OGATE::R(D)+P(E),XP(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).