What is Cobble?
Cobble is a short web word puzzle that asks you to find two words that together use all the blue letters displayed on the screen. You submit a solution by typing the two words with a single space between them and pressing space after the second word. The puzzle rewards minimizing extra letters and allows repeated submissions to improve your score.
How to play Cobble
- Look at the blue letters you must use.
- Type two words that together use all those blue letters, separated by a single space.
- Press space after the second word to submit your answer.
- Submit as many solutions as you like to reduce the number of extra letters used.
- Log in if you want to save scores or see official solutions.
Scoring and efficiency
The game emphasizes minimizing extra letters. Each submission is recorded, and you can refine your answer by submitting new word pairs. Scores are saved only when you log in, and the site displays a leaderboard for comparison. Official solutions remain hidden until you log in.
Tips for stronger solutions
Use the space bar to submit. Type your two words with a space between them, then press space again after the second word. This input method is the only way to register a solution.
Focus on letter efficiency. Look for short words that share letters with the blue set. A pair that uses exactly the blue letters scores better than one that adds many extras.
Submit multiple attempts. The puzzle does not limit tries, so experiment with different word combinations to find a cleaner fit. Each submission updates your score and can move you up the leaderboard.
Account features
Log in to unlock two features. First, the site will save your scores across sessions. Second, you can reveal official solutions to see how the puzzle was designed. Without logging in, you can still play and submit answers, but those records are not stored and the official answers remain hidden.