You have been invited to the World Mahjong competition and you, as a true lover of this type of solitaire did not refuse this invitation. Before participating in this contest, you must go through the qualifying tournament. Try to beat your stronger opponents, removing from the board paired tiles one by one. To uncover all the tiles without stress, you must start the game with closely spaced, at the opening of which you easily reach distant. To win the tournament you need to completely clear the field.