Jantou

Jantou「雀頭」 is the pair of a winning hand; every hand requires exactly one pair to win (except chiitoitsu, which requires seven). In English, it is usually called a "pair", but occasionally referred to as the hand's "eye".

Fu

If the hand's pair is composed of yakuhai tiles, the pair is worth 2 fu. Yakuhai include:

• Sangenpai (Dragon)
• Jikazehai (Seat wind)
• Bakazehai (Round wind)

A wind tile that is both the seat and round wind may be worth 2 fu or 4 fu, depending on the ruleset.

All other pairs are worth 0 fu.

Tanki

Waiting for:

Only one basic wait involves the pair directly: tanki ("pair wait"). This pattern occurs when the hand contains four complete tile groups and waits to complete the pair.