The closest match that comes to mind would let your players bank the time they don’t use. Using an n+5 configuration. The software cutechess may be capable of it but it’s not online.
But what bugs me is it would be a goofy way to play as different positions can demand more thought than others.
You would probably need to make your own custom rule set and host it yourself or do a regular game on something like lichess and enforce the time constraints outside of the platform.
The closest match that comes to mind would let your players bank the time they don’t use. Using an n+5 configuration. The software cutechess may be capable of it but it’s not online.
But what bugs me is it would be a goofy way to play as different positions can demand more thought than others.
You would probably need to make your own custom rule set and host it yourself or do a regular game on something like lichess and enforce the time constraints outside of the platform.