Asking this question, don't know whether noob or not:

1 3DS, 1 Pokemon X. How can my 2 sons play the same Pokemon X on the same 3DS but with their own data/save game? Is it even possible? Do I need to buy 2 3DS? Or can I swap the SD card?

Actually have also bought Pokemon Y. I only mentioned X so that my question is very clear.

At the moment, one is playing X and one is playing Y on the same 3DS, so they have to swap the game card often.

That is why I am asking if it is possible for them to play X at the same time with their own save game, and after both have completed X can then go on to play Y without having to keep swapping the card.