QGAMBIT.BK            Queens Gambit Opening Book file
DUTCH.BK              Dutch Defense Opening Book file
QINDIAN.BK            Queens/Nimzo Indian Defense Opening Book file
SICILIAN.BK           Sicilian Defense Opening Book file
ITALIAN.BK            Italian Opening Book file
KIDAVB.BK             Kings Indian Defense Opening Book file
TORRE.BK              Torre Attack Opening Book file
FRENCH.BK             French Defense Opening Book file
BENKO.BK              Benko Gambit Opening Book file
CAROKANN.BK           Carokann Defense Opening Book file
BK.EXE                Start Zarkov with External Opening Book
                      Example: BK SICILIAN (no extention)

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