Swaparound (2010)

"from the designer's site: It has a novel mechanism with some aesthetic appeal, along with a festive board. It's a variant of Y on a hexhex board, but with a balancing twist. It's for two players, played with white and black stones on the board used by Spry. The board consists of blue, red, and yellow borders, as well as concentric rings, each a different shade of green. The central space is also considered a “ring”, even though it’s just one space. Rules 1. The board begins empty. 2. The players take turns. On each turn, a player must place one stone of her color onto any empty space, but not on any red, yellow or blue spaces. 3. If a player makes a first placement on a ring interior to all other rings with stones currently on them, then her opponent may optionally switch sides with her, rather than place a stone, on his next turn. 4. The game ends when a chain of either white or black stones touches at least one red, one yellow, and one blue space. The player who owns that chain at game’s end wins. "