The concept of Alchemy is simple--arrange colored symbols into columns or rows to clear them off the board. The catch is that you can only place a piece of an identical color or symbol in any given adjacent square. While each round starts out simple enough, things can quickly get out of hand with a few badly placed pieces here and there. The game ramps up the difficulty over time; but if you've been around the block with puzzle games, you're probably up for the challenge. With enough patience and practice, Alchemy can be very rewarding.