Hello Triple Helix! =D

This is from the help section displayed to the left of the playing field.

---

How to play: The goal is to win all territories. At the end of each turn the number of new dice randomly distributed is based on the largest number connected territories for that player.
Controls: Mouse click to attack adjacent territories (or select "Surrender" flag underneath your icon, which will end the game if everyone does the same).
To join a game: Click "Change table", go to one that has a decent number (like 5 or 6/7) shown Playing, then choose "Sit in" - greyed out games are already in progress.

---

A stack is just the pile of dice on each territory, there is a maximum of eight dice per stack. When all of your territories have eight each, the new dice you gain go into your reinforcements. They are basically "carry-over until the next turn that you can use" them dice. You can have a maximum of 32 reinforcements.

I think your questions are covered here, so if you're wondering about anything else then feel free to ask. All the best!

I misunderstood your first question, what I described as "reinforcements" are better known as "reserves."

thank you for the information. so if you refer to reserves, what are the reinforcements people are talking about?

never mind, after further reading i see they are the same thing.