Mahjong Black White 2 Untimed is an online mahjong game. There are 20 levels in this online mahjong game. Click play or select Level Select to choose your layout preference. Each game is untimed which makes for more casual gameplay. There is no timer hurrying you through each level of this online puzzle! If you have never played from the black and white series before, this is a mahjong game with a twist. Instead of matching two tiles with the same symbol, you must match one that is black and one that is white with the same symbol. This is a greater challenge than your normal mahjong game. Submit your score to see if you are part of our high score list. Challenge other players or challenge yourself by getting a better second score on the second round.