MESON Chess Problem Database

Problem Display
PID: 66494 (8/1B2B1N1/5PR1/4k3/5N1p/2K4n/6n1/5b2 w - - 0 1)

Laws, Benjamin Glover

Tijdschrift vd NSB, 1897

8/1B2B1N1/5PR1/4k3/5N1p/2K4n/6n1/5b2

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxd3#
    • 1...Sxf4
      • 2.Rg5#
  • Tries
    • 1.Rxg2?
      • threat
        • 2.Sg6#
      • 1...Sxf4
        • 2.Rg5#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Kxf4!
    • 1.Rg4?
      • threat
        • 2.Sg6#
      • 1...Shxf4
        • 2.Rg5#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Sgxf4!
    • 1.Rg5+?
      • 1...Sxg5
        • 2.Sg6#
      • 1...Kxf4!
  • Keys
    • 1.Rg3!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Sgxf4
        • 2.Re3#
      • 1...Shxf4
        • 2.Rg5#
      • 1...Bd3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::S(B),XB(a)
    • S(c);N_GUARD,SBLOCK,XS(B)::R(D)
  • Tries
    • Try
      • R(D);XS(b)
      • Threat
        • S(B)
      • Vars
        • S(c);N_GUARD,SBLOCK,XS(B)::R(D)
        • B(a);N_GUARD::S(B),XB(a)
      • Refutation
        • K(e);S_FLIGHT,XS(B)
    • Try
      • R(D);
      • Threat
        • S(B)
      • Vars
        • S(c);N_GUARD,SBLOCK,XS(B)::R(D)
        • B(a);N_GUARD::S(B),XB(a)
      • Refutation
        • S(b);XS(B)
    • Try
      • R(D);CHECK
      • Vars
        • S(c);XR(D)::S(B)
      • Refutation
        • K(e);S_FLIGHT,XS(B)
  • Actual
    • R(D);
    • Threat
      • S(B)
    • Vars
      • K(e);S_FLIGHT,XS(B)::B(F)
      • S(b);N_GUARD,SBLOCK,XS(B)::R(D)
      • S(c);N_GUARD,SBLOCK,XS(B)::R(D)
      • B(a);N_GUARD::S(B),XB(a)
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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).