wrote:
With "Bronstein" (non-cumulative addback), your clock starts running
as soon as your opponent presses the button, but, when you _stop_
your clock, it adds back time (typically, though not necessarily,
five seconds), up to a maximum of the time you had when your clock
started. Under "delay," used by USCF, your clock does not _start_
counting down until a set period (like five seconds) has elapsed.
Mathematically, the effects are identical, though there might be a
small psychological difference if you were in extreme time pressure.

The effects most certainly are not `mathematically identical'. With
what you're calling `Bronstein', if you have five seconds on your
clock at the point when I make my move, you must move within five
seconds (which you'll get back for your next move). With what you're
calling `delay', you have ten seconds to make your move.


Dave.

--
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