Pattern lock letters A to Z

Each letter as an Android unlock pattern, with the exact order to draw it on the 3×3 grid (and on 4×4), checked against Android’s rules and scored by the same analyzer the simulator uses. Tap a letter to see it step by step.

On 3×3, 15 letters can be drawn exactly (C, F, G, J, L, M, N, P, R, S, T, U, V, W, Z); the other 11 (A, B, D, E, H, I, K, O, Q, X, Y) can only be approximated, because Android never lets you select a dot twice. On 4×4, 16 of 26 are exact. On their own they score between 2 and 37 out of 100: letters are among the first shapes anyone tries, so each page also explains how to use it more safely.