*The tile you draw is shown on the rightest.: 9 character.
*Discard what you don't need by clicking the tile.
-You can declair riichi by clicking the button next to the icon of the speaker which is the switch of the sound.
-You can make kong within your hand ('ankan' or concealed kong) anytime by clicking the button below the riichi button.
-Or you click the rightest button just for going forward without bothering kong.