tenpai; fishing (i.e. needing one more tile for completion)
being in tenpai but not calling rīchi
restriction on winning hands after discard of a wait tile
yaku-less tenpai; hand that is one tile from completion but cannot satisfy a standard win condition
being in tenpai but not calling rīchi
tenpai with all potential winning tiles visible on table (impossible to win)
yaku-less tenpai; hand that is one tile from completion but cannot satisfy a standard win condition
not fishing; needing more than one tile to win