RippleSum takes a minute to learn, which makes it easy to play on autopilot. These are the five habits that cost new players the most, and the fix for each.

1. Tapping without looking at the neighbours

A tap writes into up to eight cells at once. Tap a 2 that sits beside three empty cells and you have just created three 2s that all touch each other. The move looked productive and left you with more conflicts than you started with.

Tip: Before each tap, look at the ring of cells around it. Count how many will be filled and ask which of those will end up touching each other.

2. Ignoring the corners and edges

A corner cell has three neighbours, an edge cell five, a centre cell eight. Cells with fewer neighbours are easier to make unique and harder to reach, because fewer cells can ripple into them.

Tip: Notice early which cells can fill each empty corner. If only one neighbour can reach it, that neighbour’s value is the value the corner will get.

3. Treating a clash as a dead end

Two equal cells side by side are not a mistake you have to live with. Tap either one and the other doubles. The pair becomes, say, a 3 and a 6, and the conflict is resolved. Most solutions are built from exactly this move.

Tip: When you see a matching pair, check what the doubled value would sit next to before choosing which of the two to tap.

4. Chasing few moves instead of score

The leaderboard ranks by score first. Score is the sum of every value your ripples write, and a merge writes double. Move count only separates players whose scores are equal. Finishing in the fewest taps with small numbers will rank below a longer game that built bigger values.

Tip: Look for taps that merge several neighbours at once. They raise your score and clear conflicts in a single move.

5. Wasting the undo

You get one undo per puzzle, and it takes back only your most recent tap, score included. Spending it on a small misstep leaves you with nothing when a late move goes wrong.

Tip: Keep the undo for the second half of the puzzle. If the board is beyond saving, Restart gives you a clean attempt.

None of this needs speed. The players at the top of the board are the ones who look at the whole ring of neighbours before every tap.

Ready to Try It?

Head to today's puzzle and play it with these ideas in mind.

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