Passage

From BoardGameGeek:

The gameboard has recesses into which you initially fill the small red and black disks. Over the course of the game, you move all your big playing pieces to the other side of the board as quickly as possible. You only move diagonally over disks and playing pieces of your own color, but you may change directions anytime. Your turn always ends on a disk of your opponent's color. With this, you cover the space with a piece of your color, build a bridge and thus enhance your moving options. If you are the first player to reach the target spaces on the opposite side with all 4 of your playing pieces, you win. -description from the publisher