Riichi Calc is an easy to use app that takes any valid Japanese mahjong hand and calculates all possible winning combinations. A great companion for any Japanese mahjong player! Feel free to e-mail me about any calculation errors.
Features: • Used for the Japanese variant of Mahjong • Order is irrelevant. The app will rearrange the tiles for you • Determine waits of a tenpai hand • Provides warnings against illegal combinations (e.g. riichi with an open hand) • Calculate points using han and fu as the input • Display terminology in English or romanized Japanese