Problem Display
PID: 146794 (8/4K3/3p1B2/1BPk1p2/1p2NP2/5pR1/p1PP4/4R3 w - - 0 1)

Bednar, Milan

Canadian Chess Chat, 1983

8/4K3/3p1B2/1BPk1p2/1p2NP2/5pR1/p1PP4/4R3

#2

10 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...f2
      • 2.Rd3#
    • 1...b3
      • 2.c4#
    • 1...fxe4
      • 2.Rg5#
  • Tries
    • 1.Bc6+?
      • 1...Kc4
        • 2.d3#
      • 1...Kxc6!
    • 1.c3?
      • threat
        • 2.c4#
      • 1...fxe4
        • 2.Rg5#
      • 1...bxc3!
  • Keys
    • 1.Ba1!
      • 1...fxe4
        • 2.Rg5#
      • 1...dxc5
        • 2.Sf6#
      • 1...f2
        • 2.Rd3#
      • 1...b3
        • 2.c4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::R(D)
    • P(c);N_GUARD::P(B)
    • P(e);OGATEB,XS(E)::R(D)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(d);S_FLIGHT::P(C)
      • Refutation
        • K(d);S_FLIGHT,XB(G)
    • Try
      • P(B);
      • Threat
        • P(B)
      • Vars
        • P(e);OGATEB,XS(E)::R(D)
      • Refutation
        • P(c);XP(B)
  • Actual
    • B(I);
    • Vars
      • P(e);OGATEB,XS(E)::R(D)
      • P(f);SBLOCK,XP(H)::S(E)
      • P(b);OGATE::R(D)
      • P(c);N_GUARD::P(B)


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).