Problem Display
PID: 99756 (2rRn1Bk/4p2P/6RK/8/3N4/r2p3b/1B6/8 w - - 0 1)

Kozdon, Baldur

Magyar Sakkelet, 1978

2rRn1Bk/4p2P/6RK/8/3N4/r2p3b/1B6/8

#2

7 + 7


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Bb3?
      • threat
        • 2.Rg8#
      • 1...Rc6
        • 2.Rxe8#
      • 1...Be6
        • 2.Sc6#
      • 1...Ra6!
    • 1.Bf7?
      • threat
        • 2.Rg8#
      • 1...Rc6
        • 2.Rxe8#
      • 1...Ra6!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Rg8#
      • 1...Ra6
        • 2.Se6#
      • 1...Rc6
        • 2.Rxe8#
      • 1...Be6
        • 2.Sb3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);P_PINS(f)
      • Threat
        • R1(C)
      • Vars
        • R(e);N_GUARD,P_PINR(C)::R(F),XS(f)
        • B(c);S_CUTP(d)::B(A)+S(B)
      • Refutation
        • R(a);P_PINR(C)
    • Try
      • B(G);P_PINS(f)
      • Threat
        • R1(C)
      • Vars
        • R(e);N_GUARD,P_PINR(C)::R(F),XS(f)
      • Refutation
        • R(a);P_PINR(C)
  • Actual
    • B(G);P_PINS(f)
    • Threat
      • R1(C)
    • Vars
      • R(a);N_GUARD,P_PINR(C)::B(A)+S(B)
      • R(e);N_GUARD,P_PINR(C)::R(F),XS(f)
      • B(c);S_CUTP(d)::B(A)+S(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).