I think (Siwakorn may feel free, of course, to correct me) that it means that once no more unpromoted Soldiers remain, if 64 moves pass without any captures the game is declared a draw, but a capture, rather than resetting the count, adds 16 instead.
Also I understood the Grand Continent bit to mean “Continental Chess is played widely on the Grand Continent, which is the one supercontinent of a fictional world.” [changes emphasised]
I think (Siwakorn may feel free, of course, to correct me) that it means that once no more unpromoted Soldiers remain, if 64 moves pass without any captures the game is declared a draw, but a capture, rather than resetting the count, adds 16 instead.
Also I understood the Grand Continent bit to mean “Continental Chess is played widely on the Grand Continent, which is the one supercontinent of a fictional world.” [changes emphasised]