3C

Learn three-cushion · Short three-rail (ticky) · Mirror (pure reflection)

Short three-rail in the corner: diamond 4.5 → 1.5

Difficulty ●●○○○ · Member · 01/10/2026

Ba băng con ở góc: nút 4.5 → 1.512345674.51.5
The cue ball works a tight corner: short rail, ball, rail, rail; short path with soft speed.Diagram: 3C engine, geometry verified

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System formula

Điểm băng = giao của đường từ bi tới ảnh gương của đích qua băng đó.

Angle in = angle out, no english. Used to understand basic geometry and as the baseline for corrected systems.