Progressive Mutators

One of most general mutators is [Progressive] - players get an increasing set of moves per turn. The most common forms are 1234... and 1222... Most games do quite well with 1234... but most have to be restricted in some way to keep the flavour of the original game as much as possible, and prevent it becoming a mere bludgeoning race: Chess retains check-stop; Go has atari-stop; 1222 Hex is often played by dropping non-adjacent stones, and so on.