Number Chain: Logic Grid Puzzle
Can you fill the entire grid with every number in the right place?
Number Chain is a logic grid puzzle where you place consecutive numbers across a grid so that each one touches the last - horizontally or vertically. One path. No guessing. Just pure sequential thinking.
HOW TO PLAY
A grid appears with a few numbers already placed. Starting from 1, place every number in sequence until the entire grid is filled. Each number must be directly adjacent - left, right, up, or down - to the number before it. No diagonal moves. No skipping. The chain must be unbroken.
Each level is handcrafted. Each has exactly one solution. No randomness. No luck.
SMART FEATURES
• Intelligent hint system — 7 hints per game, each pointing to your optimal next move
• Instant undo — backtrack without penalty, experiment freely
• Full solution viewer — when you genuinely need it
WHO IS THIS FOR?
Number Chain is for anyone who loves logic puzzles — especially if you've ever played Sudoku, Kakuro, Futoshiki, or any number-placement game. The rules take 30 seconds to learn. The later levels will take everything you have.
It's also a genuine brain workout. Sequential number puzzles develop working memory, spatial reasoning, and forward-planning ability. Five minutes a day is enough to notice the difference.
NO FRICTION, JUST PUZZLES
No account required. No forced tutorial. No energy system. Download, open, and start solving. Level 1 is waiting.
The grid is set. The numbers are placed. The path exists — and only you can find it.
Download Number Chain free today.
Controles
Controles no desktop
Mouse: Click a cell to place the next number in the chain. Use Hint, Undo, Reset, and Solution from the toolbar.
Controles no celular
Touch: Tap cells to place the next number. Use Hint, Undo, Reset, and Solution buttons on-screen.
Perguntas frequentes
What is Number Chain?
Number Chain is a free online logic grid puzzle where you fill a grid with consecutive numbers, placing each one so it is directly adjacent — left, right, up, or down — to the number before it. The goal is to form an unbroken chain that fills every cell in the grid.
How do I play Number Chain?
A grid appears with a few numbers already placed as starting clues. Tap any empty cell that is horizontally or vertically adjacent to the last number you placed to continue the sequence. Numbers must be placed in order with no skipping. Fill every cell to complete the level.
Is Number Chain free to play?
Yes. Number Chain is completely free to play in your browser. No download, no account, and no paywalls — just open and start solving.
How many levels does Number Chain have?
Number Chain has 21 handcrafted levels. Early levels use compact 5×5 grids to teach the mechanics. Later levels scale up to 9×9 grids that challenge even experienced logic puzzle players.
What games are similar to Number Chain?
If you enjoy Sudoku, Kakuro, or number placement puzzles, Number Chain offers a similar brain-training experience. It combines sequential thinking with spatial path-finding in a way that feels familiar to puzzle fans but introduces a unique chain-based challenge.