Fenceology

From BoardGameGeek:

In Fenceology（KAKOMIST）, players take turns drawing a tile, then placing one of their four tiles on the table, matching colored dots on the tiles to make valid placements. Whenever you enclose a space, mark it with one of your tokens. Create seven enclosures before your opponent, and you win...but if the opponent can fill an area with a tile of their own, your token will be returned to you and await use once again.