In Icebreaker there are 3 red ships and 3 black ships in the six corners of the board. The rest of the board starts out filled with white icebergs. You capture an iceberg by moving your ship into a cell containing one. The goal is to capture the majority of the icebergs.

Ships must move one cell closer to their nearest iceberg. So, in other words, if you chose to move a particular ship, and that ship is adjacent to one or more icebergs, you must capture one of them. If the ship is not adjacent to any icebergs, you must move it one cell closer to the iceberg that's closest to it.