Reading about it, my son is 7 years old. Could he play it?
Yes! I play the game with my 6 and 9 year old... While I have to help them out every once and a while, they'll get the hang of it if you have patience...
Although I have to warn you, you'll have to "throw a game" (aka purposely lose) every now and then to keep them wanting to come back for more.