Repetition

Games like chess are ones where you'll be able to improve as long as you keep on playing matches. If you want to take this to the extreme, you should try 1 minute chess. Each player only has a total of 60 seconds on the clock. Whenever it's their turn, the time will tick down. If time runs out, they lose.

Thus, the maximum match duration will end up being only 2 minutes. This equates to well over 30 matches an hour.