A similar concept was used in the anime Code Geass.
I'd say that it would be most helpful for novices or people who have never played chess. For higher-level players that can already see the thought behind moves, the ability to read minds wouldn't be as benificial for chess.
When I was about 11 or 12 I saw a episode of x-files where a kid won against grandmasters in chess because he could read their mind but he wouldn't play against a simple chess computer because he wouldn't be able to win.
This have been stuck in my head since then. Would you be able to beat people that's much better than you if you could read their minds? I feel that when I'm playing against a good chess player I already know his or her thoughts behind the moves so I don't think it would help alot.
Any thoughts on this? It's been bugging me for years now.