You always move first.

If on your turn you cannot outflank and flip at least one opposing stone, your turn is forfeited and your opponent moves again. However, if a move is available to you, you may not forfeit your turn.

A stone may outflank any number of stones in one or more rows in any number of directions at the same time - horizontally, vertically or diagonally. A row is defined as one or more stones in a continuous straight line.

You may not skip over your own color stone to outflank an opposing stone.

Stones may only be outflanked as a direct result of a move and must fall in the direct line of the stone placed down.

All stones outflanked in any one move must be flipped, even if it is to the player's advantage not to flip them.

Once a stone is placed on a square, it can never be moved to another square later in the game.

When it is no longer possible for either player to move, the game is over. Stones are then counted and the player with the majority of his or her color discs on the board is declared the winner.