MESON Chess Problem Database

Problem Display
PID: 179263 (8/8/2NB4/2p1p3/4p3/3RP3/1N6/3Bk1K1 w - - 0 1)

Willmott, Arthur

Problem Observer, 2010

8/8/2NB4/2p1p3/4p3/3RP3/1N6/3Bk1K1

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sc2#
      • 1...cxb4
        • 2.Bxb4#
      • 1...exd3!
    • 1.Sxe5?
      • 1...exd3
        • 2.Sf3#
      • 1...c4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc2#
      • 1...exd3
        • 2.Sf3#
      • 1...cxd4
        • 2.Bb4#
      • 1...exd4
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • P(c);OGATE,XS(F)::B(G),XP(c)
      • Refutation
        • P(b);XR(D)
    • Try
      • S(F);XP(d)
      • Vars
        • P(b);N_GUARD,XR(D)::S(F)
      • Refutation
        • P(c);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • P(b);N_GUARD,XR(D)::S(F)
      • P(c);OGATE,XS(F)::B(G)
      • P(d);OGATE,XS(F)::B(G)
HTML5 logo

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).