There's possibly a similar aspect to poker where you have to present a wide range of hands for your opponent to account for, whereas if you play tight then you

There's possibly a similar aspect to poker where you have to present a wide range of hands for your opponent to account for, whereas if you play tight then you become more predictable and you won't get action when you bet. With chess you have to prepare and play less optimal lines so your opponent has to prepare more lines and/or you can play lines they haven't prepared for so well.