Problem Display
PID: 121271 (1N1br1B1/2p1kpP1/5R2/6P1/2Pp2K1/6B1/8/8 w - - 0 1)

Ferber, Eugene

Deutsche Schachzeitung, 1905

1N1br1B1/2p1kpP1/5R2/6P1/2Pp2K1/6B1/8/8

#2

8 + 6


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...c5
      • 2.Bd6#
    • 1...c6
      • 2.Bd6#
  • Tries
    • 1.Rf2?
      • threat
        • 2.Re2#
      • 1...f5+
        • 2.gxf5 ep#
      • 1...Ke6
        • 2.Re2#
      • 1...d3!
  • Keys
    • 1.Rf1!
      • threat
        • 2.Re1#
      • 1...f5+
        • 2.gxf5 ep#
      • 1...Ke6
        • 2.Re1#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(b);N_GUARD::B(A)
  • Tries
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • P(d);CHECK,OGATE::P(D),XP(d),EP
        • K(c);P-FLIGHT,P_SPINP(d)::R(E)
      • Refutation
        • P(a);
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • P(d);CHECK,OGATE::P(D),XP(d),EP
      • K(c);P-FLIGHT,P_SPINP(d)::R(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).