A pose code consists of 4 characters: type (2 digits), row (1 digit), column (1 digit).

The type represents the pose category in base-35 using 0–9 and A–Z. “O” is not used since it’s easily confused with “0” (zero).

Row uses 0 as the center, with 1–5 going up and a–e going down (up to 5 levels each). Column uses 0 as the center, with e–a going left and 1–5 going right (up to 5 levels each).