LEXiBOOK CG1330 Chessman FX Elite, 64 levels of difficulty, 40 special effects, Fully interactive Fully interactive: the special effects vary according to the chess pieces and the game situations Integrates all the rules: 50 moves rule, stalemate and draw, the promotion of pawns and the en passant capture Smart game help functions: Hint, Take Back, Move, Verify, Set Up and Multimove (to referee a game between two players)