Number Connect is a free online number puzzle game - no downloads, and no account required to play. Your goal is to clear the board by matching pairs of numbers that either add up to 10 or are identical. The two numbers must have a clear path between them - along a row, down a column, along a diagonal, or across the wrap from the end of one row to the start of the next.

In Classic, the board grows larger and more challenging as you progress. Use the "Add Row" button when you're stuck, but use it wisely - you only get a limited number of new rows per game, and unused rows multiply your score. Your score carries over from game to game, so the further you go, the higher you can climb. The Daily Challenge and Battle modes work differently: each deals a fixed board that's always fully clearable, with no rows to add.

• No account required to play
• Global leaderboard and weekly high scores
• Your progress is saved automatically
• Works on desktop and mobile

Clear all numbers from the board by matching pairs. Match every number to win the round.

Click any two numbers that either add up to 10 or are identical.

The two numbers must be connected by a clear path - no other numbers can be in the way. Four path types are valid:

Empty cells between matched numbers boost your score. The further apart, the bigger the reward.

Stuck? Tap the + button to add new matchable rows. You have 4 uses per game - unused rows multiply your final score, so use them wisely.

Each time you complete a board and continue, the next game starts with one more row. How far can you go?

Starting a new game lets you pick any level you've already reached, rather than always going back to Game 1 - so you can jump straight back to where you left off.

Battle is head-to-head. Each round deals you and your opponent the exact same board, and whoever scores higher on it takes the round. Like the Daily Challenge, a battle board is always fully clearable and there are no + rows to fall back on, so the score comes down to how much of it you find. Each round adds another row, up to eight.

Whoever starts the battle picks how it's won. Best of rounds (1, 3, 5 or 7) ends as soon as someone has taken more than half of them - win two rounds of a best of 3 and the third is never played. Total score (2 to 5 rounds) plays every round and adds them up, so a big last round can still turn it around. A best-of battle that ends level on rounds goes to the higher total score.

You both play the round independently, in your own time - there are no turns to wait for. Scores stay hidden until you have both finished, so you're playing the board, not chasing a number. Once you're both in, the round is decided and the next one opens for both of you.

Search for a friend by name to challenge them directly (they'll get a notification to accept), use Invite by Link to send a link anyone can claim, or Find Random Opponent to be paired with the next player looking for a battle. You can have several battles running at once. If a round sits unplayed for 24 hours it's awarded to whoever did play it, so an abandoned battle resolves itself instead of sitting open forever. Battles against a guest (someone who isn't signed in) play out as normal but are just for fun - they don't count toward anyone's record on the leaderboard.

If you want to reset your high score, click here to go to the API's page and click Send