Welcome to our graveyard. Don’t be afraid, just dig right in. You have nothing to lose...but your head. You better be quick, though, because the faster you match the pairs of icons under the tombstones, the greater the chances you’ll get out of our graveyard alive.

Each game consists of a set of blank tombstones displayed across the board. Hidden behind each tombstone is an icon. For every icon there exists an identical matching icon, hidden somewhere else on the board. Your goal is to match identical pairs of icons in the fewest number of moves, and within the shortest period of time.