Alias · Triangle system
Scramble triangle
Also known as Trapped Triangle — the canonical term used on this site.
Training background: colloquial — reflects primary entry context
Informal — triangle caught in a scramble
Scramble triangle is a colloquial name for the trapped triangle — describing a triangle locked on in the chaos of a scramble.
Etymology. “Scramble triangle” names the situation it arises from, catching the neck and arm during a fast exchange rather than from a settled position. The label is informal, foregrounding the scramble origin over the trapped-arm structure.
Mechanics. The triangle compresses both sides of the neck at once even when caught mid-scramble: the legs close one carotid while the trapped arm loads the other. The scramble entry is opportunistic, but the finish still depends on the same two-sided compression, so the attacker must settle the angle before the squeeze completes.
Cross-reference. “Trapped arm triangle” is a sibling alias. Full mechanical coverage on Trapped Triangle.