Problem Display
PID: 141739 (2Rb4/5n2/3ppP2/2PkN2B/3Pp3/1K2Pp2/7B/8 w - - 0 1)

Albarda, Johannes

08. Kwik-Toernooi, 1977

2Rb4/5n2/3ppP2/2PkN2B/3Pp3/1K2Pp2/7B/8

#2

9 + 7


102 Probleemblad 1977
15148 Sadier Collection 2014

SOLUTION


  • SOUND
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sb4#
      • 1...e5
        • 2.Bxf7#
      • 1...Ba5
        • 2.Se7#
      • 1...dxc5!
    • 1.Sg6?
      • threat
        • 2.Sf4#
      • 1...dxc5
        • 2.Rxc5#
      • 1...Bc7
        • 2.Se7#
      • 1...e5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sb4#
        • 2.Sf4#
      • 1...exd3
        • 2.Bxf3#
      • 1...dxc5
        • 2.Rxc5#
      • 1...Bc7
        • 2.Sb4#
      • 1...e5
        • 2.Bxf7#
      • 1...Ba5
        • 2.Sf4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • P(e);OGATEB::B(G),XS(f)
        • B(g);N_GUARD::S(F)
      • Refutation
        • P(d);XP(E)
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • P(d);OGATE,XP(E)::R1(I),XP(d)
        • B(g);N_GUARD::S(F)
      • Refutation
        • P(e);
  • Actual
    • S(F);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);OGATEB,XS(F)::B(G),XP(a)
      • P(d);OGATE,XP(E)::R1(I),XP(d)
      • B(g);::S(F)
      • P(e);OGATEB::B(G),XS(f)


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).