Free
In-App PurchasesWith Ads
Rating summary
About
Find the only chain.
2N is a new kind of number puzzle: part logic grid, part merge challenge. Choose the right cells, satisfy the board rules, and build a valid chain that reaches the target.
HOW TO PLAY
• Pick one number from every row and column.
• Follow the spacing or region rule shown for the current puzzle.
• Make sure the chosen values can merge step by step into the target.
• Check your chain and watch the numbers combine.
PLAY YOUR WAY
• Daily Puzzles — solve a new challenge each day and build your streak.
• Free Play — progress through Basic, Hard, Expert, Master and Extreme.
• Monthly Awards — complete every Daily Puzzle in a month to earn its trophy.
• Smart assists — use undo, hints, and clear feedback when you need them.
• Satisfying merges — see every correct chain combine into its final number.
• Light and dark themes.
• Accessible board labels and clear selected and eliminated states.
No account is required. Your gameplay progress stays on your device.
2N is free to play with optional advertising. A one-time Remove Ads purchase removes ads and unlocks ad-supported assists instantly.
Can you find the only chain?
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What's New in 2N
1.0
August 22, 2026
1
Subscriptions & In-App Purchases
$3.99
2N Ad-Free Lifetime
Remove ads and unlock ad-free puzzle assists.






