2N: Number Merge Puzzle

Find the one valid chain hidden in every grid. Play a new Daily Puzzle, master five difficulty levels, earn monthly awards, and sharpen your logic.

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?