B-rank is one of the five classifications. It is preceded by C-rank and followed by A-rank. It is typically used when classifying techniques intended for ninja of the jōnin or chūnin level. B-rank techniques are typically useful and can be learned relatively easily with enough time, such as the Shadow Clone Technique.
There are also B-rank missions. These missions are usually assigned to jōnin or chūnin. Assignments can involve spying or assassinations, and ninja are expected to go up against enemy ninja during the course of the mission. B-rank missions pay between 80,000 and 200,000 ryō.