Number

If you've ever set a combination on a gym locker, you already know how number locks work. They're one of the most common lock types in escape rooms. The lock itself is never the hard part. The challenge is figuring out which numbers go where.

What It Is

A number lock (or combination padlock) has rotating dials that must be set to the correct numeric sequence to open. Most escape rooms use 3-digit or 4-digit locks, though 5-digit versions occasionally appear. The dials click into place at each number, and the shackle releases when all digits are correct. Some rooms use combination locks with a single rotating dial (like a classic locker lock), but the multi-dial type is far more common.

How to Solve It

1. Count the digits. Check how many dials the lock has — this tells you how many numbers you need. A 4-dial lock needs exactly 4 digits.
2. Gather digits from puzzles. Each puzzle in the room typically yields one or more digits. Pay attention to where you find each number and in what order.
3. Watch for order clues. Four digits can be arranged 24 different ways. Look for clues about sequence — color coding, numbered steps, left-to-right reading order, or explicit "first, second, third" indicators.
4. Try it carefully. Align each dial precisely. A common mistake is being off by one click. Make sure each number is centered in the display window.
5. Pull firmly. Some padlocks need a solid tug. If you're confident in your code but the lock won't open, try pulling harder while double-checking alignment.

Examples

The Portrait Gallery: Four paintings each contain a hidden number — in a date on a plaque, a number of fingers in a pose, a clock showing a time, and a page number in a painted book. Reading the paintings left to right gives the 4-digit code.

The Math Trail: A series of simple math problems on a chalkboard. Each answer is a single digit, and solving them top to bottom gives the combination.

The Scattered Digits: Individual numbers are hidden around the room — under a lamp, inside a book, on the back of a drawer. Color-coded dots next to each number match colored dots on the lock, indicating the order.

Difficulty Variations

Easy: The code is directly provided by a single puzzle, and the order is obvious (left to right, top to bottom). The lock is clearly labeled or near the puzzle that provides its code.

Hard: Digits come from multiple unrelated puzzles and must be assembled in a non-obvious order. Some rooms use misleading numbers as red herrings, or require mathematical operations on found numbers to derive the actual code.

Related Puzzles

Number locks often work alongside word locks and directional locks in the same room. For digital versions with added complexity, see electronic locks.