I know many of you will probably mention modern strategy based computer games, but for me it has to be the original: Chess
It's remarkable how, immediately when you play, you begin to see how your brain is working things out, thinking ahead, planning and dealing with unforeseen events, all crucial lessons we can take to our lives.
I remember for a period some years ago when I was playing regularly against friends or family I found that my clarity of thought was really improving in my business life.
On the flipside, when I decided to play the computer on my Mac some nights ago I was astonished at how I was just walking into bad moves without thinking them through - I had become rusty!
Since then I have played a quick game every night, just to keep my mind toned up, and intend to keep going with this practice.
Have any of you similar experience with this or other games?