Guy Macon wrote:
wrote:

Chess One wrote:

There is also Kasparov delay, which doesn't add time, but
doesn't count time for X seconds. Phil Innes

Why would you attribute that method to Kasparov?

For the same reason he calls Turing machines "Turing engines"?

The Kasparov delay does exist, but has only been used once, on
the 26th move of game 2 of the 1987 Karpov vs. Kasparov title
match. It never really caught on, and even Kasparov himself
avoided it after that one experiment.

It's the USCF standard, and has been so since the early 90s.
There are essentially three "delay" methods. The USCF ("time delay")
doesn't start the clock for x seconds after the button has been
pushed. The "Bronstein" method starts counting down immediately, but
adds x seconds when you stop your clock, up to a max of the time you
had when you clock started. The effect is _almost_ identical to the
first, though there is a tiny difference if you are very short of
time. The "Fischer" method is the same as Bronstein, except that your
time can accumulate without limit.

Please read the following URLs:
http://www.dgtprojects.com/clock_tim....htm#bronstein
http://en.wikipedia.org/wiki/Game_clock#Delay_clocks

If you disagree with them please provide your sources.

If you want to argue about the names, go ahead (though I
don't plan to listen)

You should care whether Bronstein gets credit for what Bronstein
invented and whether Fischer gets credit for what Fischer invented.

(And I should have checked before my original post rather than
going by memory...)


The DGT page is probably correct, but it was obviously written by a
non-English-speaker, and probably a non-chess-player, so it's a little
hard to be sure. The Wikipedia page is incomplete, as it does not
mention non-addback delay, used almost exclusively in U.S.
tournaments. (Probably written by a Euro.) I may modify it, but it's
not high on my list of priorities.