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NE-WAZA (ground) · BROWN
Sankaku-gatame system
The triangle applied as a control system: legs locked, opponent folded, everything downstream yours.
Canon: the Kodokan 100 (68 nage-waza, 32 katame-waza; IJF/Kodokan classification) · Daigo, Kodokan Judo Throwing Techniques · Kashiwazaki