Hi,
Typically, yes, ArrayMaker will save the day here:
have a unique id for each of your tiles ( "11","12") you are good with this as long as you don't have more than 9 items per row or column).
then in arrayMaker have a arrayList describing the sequence by simply refering to these ids, and as the user performs actions, you keep track of the index ( the progression) in that array, if he hits a tile that is indeed at the current index, he's right and you can increment to the next index, if it's wrong, then the user failed the sequence.
Does that make sense?
bye,
Jean