How to Win at Mahjong Every Day:知己知彼 Tactics - How to Guess Tiles! How to Win at Mahjong Every Day:知己知彼 Tactics - How to Guess Tiles! How to Win at Mahjong Every Day:知己知彼 Tactics - How to Guess Tiles!
(Note: "知己知彼" can also be translated as "Know Yourself, Know Your Enemy")