Bassai Shô (抜塞小) - "Penetrating the Fortress - Small" ("Проникновение в крепость - малый вариант").
Many versions of Bassai kata are known: Matsumura Bassai, Ishimine Bassai, Tomari Bassai, and others. The original version is said to belong to Oyadomori Kokan (1827-1905).
Bassai Shô was derived from Bassai Dai by Itosu Yasutsune.
Some notes on Bassai Shô (抜塞小)