Electronic chess board, which knows how to control the moves you make so you do not make illegal moves. It also controls the time of the game according to the mode you have chosen. And controls the end of game by detecting the checkmate and the drawn. We can choose the time of departure, from 3 minutes to 90 minutes. We can also set a time increment per move, from 2 seconds to 30 seconds. And we can choose two very entertaining game systems that are SAND WATCH AND GONG SYSTEM. We can access an instruction book that details all the particulars of this game more deeply. If we click on START GAME , we see the board with the pieces and the clock. To start the game press the button on the clock, stop-start to operate the white clock. To make the plays you have to click on the space where the piece is, and move it until the target is released, and to complete the play, you have to click on the clock to start the turn of the opponent. At any time we can stop the clock, pressing again on the same button you can continue the game. Due to the difficulty in moving the pieces, it has been removed the obligation to move a piece touched, in addition, how it is possible that it moves to an unintended site, it is allowed to move the play before pressing the clock by pressing on the green arrow.