Author: Mike Byrne
Date: 21:49:47 06/12/03
Go up one level in this thread
On June 12, 2003 at 13:28:11, Russell Reagan wrote:
>On June 12, 2003 at 08:43:02, Magoo wrote:
>
>>Hi, my engine MiniMardi is doing well!! playing good at a fixed depth = 4.
>>Now i've added time management that seems to work (i think), but i wonder how
>>other newbie engines do this? My method is: if game has increment,
>>allocated_time = inc + time, where time = time_left/speed. Speed is set so that
>>if time_left > time_opponent, speed++, else speed--. (to match the opponent).
>>This method works well for slow games, but in bullet (1 0) this method doesn't
>>work so well, the speed variable takes "moves to update", so this means the
>>engine after about move 30, has <10 sec left. To fix this i use a special case
>>to detect the game is bullet, but of course, i dont want to this for ALL
>>different time controls (3 0, 5 0 etc..).
>
>I think the simplest way to do time management is to always assume that there
>are X number of moves left in the game. So if you always assume there are 30
>moves left in the game, you will always use 1/30th of the remaining time. If
>there is an increment, add that to the time for each move. That way you will
>play faster and faster as your time gets lower. There are probably better ways,
>but more complicated, and this works fine.
>
>const int moves_left = 30;
>
>int GetTimeForMove () {
> int time = (time_left / moves_left) + increment;
> return time;
>}
I always felt you have to add more time on any fail low early or fail low when
you are wiining. Once you are losing, when playing against other programs ,
adding more time does not help when your a piece down.
If you have pondering on, you can also try "25" in x+y (increment) games. In
game/x games, you might be better with "35". In game xx moves in yy minutues, I
always use (time remaining / move remaining) x(times) 2, except on move "xx-1"
-- using (x)times .9 to ensure not losing on time.
It should be different with or without pondering IMO.
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