Problem Display
PID: 225385 (4R3/2K5/4pp2/4k3/1N1prp1N/8/4B3/8 w - - 0 1)

Belcak, Ladislav

Praca, 1956

4R3/2K5/4pp2/4k3/1N1prp1N/8/4B3/8

#2

5 + 6


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Bg4?
      • threat
        • 2.Sf3#
        • 2.Sg6#
        • 2.Rxe6#
      • 1...Re1
        • 2.Rxe6#
      • 1...Re2
        • 2.Rxe6#
      • 1...Re3
        • 2.Rxe6#
      • 1...d3
        • 2.Sf3#
      • 1...f3
        • 2.Sg6#
      • 1...f5!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sd3#
        • 2.Sc6#
        • 2.Rxe6#
      • 1...Re1
        • 2.Rxe6#
      • 1...Re2
        • 2.Rxe6#
      • 1...Re3
        • 2.Rxe6#
      • 1...d3
        • 2.Sc6#
      • 1...f3
        • 2.Sd3#
      • 1...f5
        • 2.Rxe6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);::R1(E),XP(e)
        • P(a);::S(C)
        • P(c);::S(C)
      • Refutation
        • P(f);
  • Actual
    • B(A);
    • Threat
      • DUALS(3)
    • Vars
      • R(b);::R1(E),XP(e)
      • P(a);::S(B)
      • P(c);::S(B)
      • P(f);::R1(E),XP(e)


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).