Fischer Timing

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    Keywords: Rules, Tournament

Definition

Fischer Timing is the time system where

  • one gets an amount of time (say, 5 minutes),
  • time used for each move is deducted,
  • and an extra amount of time (say, 15 seconds) is added after each move.

Remarks

Players' remaining time

  • grows as long as they use less than the post-move increment
  • and declines when they use more -- on average.
  • is always at least the incremental amount for each move

The Players' overall time limit is linearly dependent on the number of moves (e.g. you can tell that a 300 move game with 30 min + 30 sec/move will last for a maximum of 210 min).

There is no spilling of unused time.

There are no periods. All you have to watch is the time.


Example

5 minutes plus 30 seconds bonus.

   #    Time     Used
   ------------------
   1     5:00    1:00
   2     4:30    1:20
   3     3:40    2:40
   4     1:30    0:10
   5     1:50    0:20
   6     2:00    0:30
   7     2:00    2:00
   8     0:00    lost

If it were only one second less in step 7, life would continue with 0:31 on the clock.


Example tournaments where Fischer timing was used:

Princeton-Rutgers 1st inter-collegiate match, (April 2009 | AGA E-Journal, Volume 10, #14)
30 min reserve and 15 seconds per move

See also


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This is a copy of the living page "Fischer Timing" at Sensei's Library.
(OC) 2009 the Authors, published under the OpenContent License V1.0.
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