Uisge

Uisge is played on a rectangular game board of 42 squares and using twelve round stone game pieces, six white and six black, each with one blank side and one with a crown. To start, all stones are arranged blank side up. As in chess, the player controlling the white pieces moves first, followed by the player controlling the black pieces.

On a player's turn, a stone can be moved in one of two ways:

• Jump: A piece may jump over a neighbouring own or an opponent's piece in a horizontal or vertical direction, provided the landing space is empty. The jumping stone is flipped, making a blank stone a crown stone and a crown stone a blank stone.
• Move: Only crown pieces may move. It may be moved to an empty adjacent empty field in a horizontal, vertical or diagonal direction. The crown stone is not turned over.

A stone may only be moved if all stones on the field are still connected to each other in a horizontal or vertical direction. No stone or group of stones may stand alone and stones cannot move into a space that would leave them only diagonally connected to the chain.[2]

The object of the game is to flip all ones stones to the crown side before the opponent.

Uisge was featured as a "break-away game" in the 1983 Spielbox magazine.[3][4] It was awarded the 1984 Spiel de Jahres special award for "Beautiful Game".[1][5]