What is 67DLE?
67DLE is a free daily mathematical logic puzzle designed for puzzle enthusiasts, students, and anyone who loves mental arithmetic. Inspired by viral deduction games like Wordle, 67DLE challenges players to reach a specific target number using only two digits — 6 and 7 — alongside the four standard arithmetic operators: addition (+), subtraction (-), multiplication (×), and division (/).
Three Challenging Game Modes
67DLE offers three distinct ways to test your computational agility:
- Equation 67 (Classic): Build an equation to reach the daily or random target number. Correct equations turn green, while incorrect attempts shake in red and are logged in your Attempt History showing their exact calculated value to help you calibrate your next try.
- Arrange 67: Rearrange all given tiles in your dynamic tray to create an equation that evaluates to exactly 67. Every provided tile must be used once.
- Crossword 67: A 5×5 mathematical crossword where all intersecting horizontal and vertical equations must evaluate to 67 simultaneously.
Order of Operations (PEMDAS / BODMAS)
Calculations in 67DLE follow standard mathematical conventions strictly:
Example: 6 + 7 × 6 = 6 + 42 = 48 (not 78).
In Equation 67 mode, you can also concatenate digits to create multi-digit numbers such as 66, 67, 76, and 77, which opens up powerful computational pathways to reach large targets.
Pro Tips & Strategies
- Factor Search: If your target is 42, think of
6 × 7immediately. If it's 49, consider7 × 7or6 × 7 + 7. - Parity Balance: 6 is an even number, while 7 is odd. Multiplying any number by 6 produces an even result. Use 7 strategically when you need to switch parity to reach an odd target.
- Work Backwards: Subtract or divide from the target to identify which two-digit base (such as 76 or 66) gets you closest to the target before adding operators.
Frequently Asked Questions
When does the daily puzzle reset?
A new official daily puzzle is published every night at midnight (00:00) in your local timezone. You can also explore past challenges via the Calendar Archive.
Is 67DLE free and private?
Yes! 67DLE is 100% free to play. We do not require accounts, sign-ups, or personal data collection. Your scores and streaks are saved directly on your device via HTML5 localStorage.
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