Here's what happens: first, you score points. No idea what the formula for that is. Second, you get a bonus move. The game ends when you run out of moves.
At the start of the game, you are given 5 moves. If you can't create a set, you lose a move. If you get a massive chain reaction, you'll get bonus moves, but never more than 5.
This game can go on for a very long time. My high score is 204,170 which took about 25 minutes to play. The leaderboard does not seem to be working for this game. I like this game.
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