Letter E pattern lock
How to draw the letter E as an Android unlock pattern, step by step, on the standard 3×3 grid and on 4×4, with the security score PatternGuard’s analyzer gives each version.
The letter E on a 3×3 grid
An exact letter E isn’t possible on the 3×3 grid: Android never lets you select a dot twice, and this shape would need it. The closest pattern adds the line 3–5, which isn’t part of the letter.
- Start at dot 4 (middle left).
- Go to dot 5 (center).
- Go to dot 3 (top-right corner).
- Go to dot 2 (top middle).
- Go to dot 1 (top-left corner).
- Go to dot 7 (bottom-left corner), passing over dot 4 again.
- Go to dot 8 (bottom middle).
- Finish at dot 9 (bottom-right corner).
PatternGuard’s analyzer gives it 37/100 (Weak): 8 dots, 1 crossing, starting at the middle left.
Is a letter E pattern safe?
Not really. Letters are among the first shapes anyone tries: research on real-world patterns found that about 1 in 10 is shaped like a letter, often the initial of a partner or a child (Løge, 2015). If your name or your partner’s name starts with E, this is one of the first patterns someone who knows you would draw.
A stronger way to use the letter E
On 3×3 the letter E already uses almost every dot, so there’s no room to hide it inside a longer stroke. If you want to keep it, the 4×4 version on this page gives you more room; otherwise, the safest pattern is one of your own that doesn’t spell anything.
The letter E on a 4×4 grid
Stock Android uses the 3×3 grid; 4×4 shows up in some custom ROMs and lock-screen apps, and the simulator supports it. An exact letter E isn’t possible on the 4×4 grid: Android never lets you select a dot twice, and this shape would need it. The closest pattern adds the line 9–16, which isn’t part of the letter.
Order: 11 → 10 → 9 → 16 → 15 → 14 → 13 → 5 → 1 → 2 → 3 → 4
PatternGuard’s analyzer gives it 48/100 (Moderate): 12 dots, 2 crossings, starting at the row 3, column 3.
Why some letters can’t be drawn exactly
Android’s pattern lock has three rules: at least 4 dots, no dot can be selected twice, and if the stroke passes over a dot you haven’t used yet, Android adds it automatically. Passing over a dot you already used is allowed, which is how letters like P, R or F can be traced exactly. On 3×3, shapes with a closed loop or three or more loose ends (like A, B or O) still need one line left out or one line added; the 4×4 grid has more room, but not always enough.