Let's Learn Mahjong 3

Dora tiles are a bonus you receive when you complete a hand yourself. Dora tiles are the only ones revealed during Mahjong. For numbered tiles, the next number in the suit is the dora. For honor tiles, the next tile in the sequence (East, South, West, North, White, Green, Red) becomes the dora. If a 1-man is revealed, the dora is a 2-man. If a 9-pin is revealed, the dora is a 1-pin. For honor tiles: If East is revealed, South is the dora. If South is revealed, West is the dora. If West is revealed, North is the dora. If North is revealed, East is the dora. This is why the East-South-West-North sequence is important. For White, Green, Red: If White is revealed, Green is the dora. If Green is revealed, Red is the dora. If Red is revealed, White is the dora. Remember this sequence too. Basically, if you don't call 'pon' or 'chi' (taking an opponent's tile) and win with your own hand (fully concealed hand, Riichi), you can get bonus points from both the revealed dora and any subsequent doras. This increases your chances of getting a bonus with two doras, so try not to call 'pon' or 'chi' during a match. This is especially true for beginners. If you declare a 'kan' (open or closed quad), the dora tiles increase. Therefore, only declare a 'kan' if you are confident.