Is AD-01 mode on the Chronos a Bronstein mode?

Bill Smythe:

I have a question for you. Since we are both users of the Chronos clock, I want you to do a test with the mode AD-01. Now its’ pre-set to 2:00:00 (h:mm:ss) with Bronstein set at 0:15 (m:ss). If AD-01 was used for rule 14H2a, with the opponent having 0:40 (m:ss) after the time has been adjusted. When the clock has been started, the clock will go to 0:45 (m:ss) as the Bronstein will give the player five seconds at the start of the clock. Could not this be the same as Jonwas talking about, five seconds delay, one second used, four seconds added to the total time on the clock. Example: re-set clock 0:40 (m:ss), five second delay 0:45 (m:ss), one second used 0:44 (m:ss), four seconds added to total time on the clock 0:44 (m:ss).

If you set both clocks to 0:40 (m:ss), and than keep pressing the clock over and over again within five seconds. It will always go back to 0:45 (m:ss). It will happen as many times you press the clock within five seconds. As the Bronstein mode will always go back to 0:45 (m:ss), but the point is this, Bronstein will grant both players five seconds at the first time it is used.

Correct. The Chronos calls its Bronstein modes “Adagio”, which is what the AD stands for in AD-1.

Bronstein is mathematically equivalent to a “true” delay, EXCEPT for an overall, one-time difference of 5 seconds in the total allotted time. For example, game/60 with 5 seconds on a clock with “true” delay is equivalent to game/60:05 with 5 seconds on a Bronstein clock. Or, game/60 with 5 seconds on a Bronstein clock is equivalent to game/59:55 with 5 seconds on a clock with “true” delay.

Recognizing this 5-second difference, the Chronos (in its Adagio modes) adds 5 seconds to both sides, on a one-time basis, when the clock is first started.

Other clocks may not do this, but no TD in his right mind would ever deny a time-forfeit claim on the grounds that the players were “shorted” 5 seconds at the outset of the game.

Possibly, but from the context it sounded as though the TD had set the clock for increment mode instead of delay (or Bronstein) mode. Of course, not having been there, I can’t be sure.

All of this is correct.

Bill Smythe

But that is what I wanted to point out, it could have been Bronstein. But it does follow the time line Jon pointed out, five second delay, one second used, four seconds added to total time.