/**
* creates a new TickTackToeMovementValidatorChain.
*/
public TicTacToeMovementValidatorChain() {
validators.add(new GameIsActiveValidator());
validators.add(new PlayerIsParticipatingValidator());
validators.add(new PlayersTurnValidator());
validators.add(new PlayerIsPlayingRightTokenTypeValidator());
validators.add(new MovementSourceIsHomeValidator());
validators.add(new MovementTargetIsOnBoardValidator());
validators.add(new MovementTargetEmptyValidator());