An example of Bunkai Kumite from the 2017 World Koshiki Tournament held in London, Ontario. Performing Bassai Bunkai is Shihan Andrew Riley, Sensei Nick King and Sensei Scott Chaffey. The trio won the gold medal for Bunkai. It was a great demonstration loved by the crowd.
Renshu Kumite Ni is the second of two prearranged sequences (yakusoku randori kumite) developed by Hanshi Masayuki Kukan Hisataka to assist karatedo students to refine their favorite techniques into effective sequences utilizing both offensive and defensive strategies.
Renshu Kumite Ichi emphasizes the use of the front hand and is recommended for 10th and 9th kyu students while Renshu Kumite Ni teaches the use of the back hand, and is recommended for 8th and 7th kyu students.