We just got this game used and unfortunately haven't played or seen this game played, though it looks and sounds great. After several reviews of the rules and of the pictures posted here I have a seemingly dumb question. With regards to the triple tiles, when setting them up, are they stacked? This pertains to how the triple tiles are drawn for use: Can the player choose ANY of the available triple tiles he would like? Can he choose only from the top of a stack? Or is the draw supposed to be at random? Most of the pictures here show the triple tiles stacked, but one I believe shows them in a pile next to the board. The rules refer in one place to "the common pile" suggesting not to stack them, but do not seem to specifically address this. Any input? Thanks, Ed.