I put a lot of suggestions in comment #32. there's plenty of things to do to make asking easer, but yes, it does boil down to asking in the end. but which do you think will work better?
"can I play chess again?
or "I am sorry for disobeying, I realize I may have been playing chess too much, can I play from 4:00-5:00?"
how can he get his parents to let him play chess again?
ask them lmao you can’t really do anything else