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Kakuro: learn through an example

Something to practise

Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round. Make the next step deliberately.

Your goal

Complete a 4×4 sum grid with digits 1–9, no repeats in any row or column, and the displayed totals. Read that aim before choosing your first action. Keep the controls in easy reach.

A walkthrough of the rules

  1. Compare a row total with its fixed entries.
  2. Use the column total for the same blank.
  3. Enter digits 1–9.
  4. Check puzzle verifies totals and non-repetition.

Making selections and moves

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Use the control method described here for this activity. A new-round button replaces the current round.

See the idea in action

A row total 18 with fixed values 2, 4 and 7 requires 5 in the remaining cell. Compare this with the rule that governs the move. Check the stated objective.

One detail worth checking

Repeated digits in a run are forbidden even when the sum matches. Check the rule before repeating the action. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.

A few questions answered

What is the goal of Kakuro?

Complete a 4×4 sum grid with digits 1–9, no repeats in any row or column, and the displayed totals.

While learning, how do I control Kakuro?

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

While learning, what example helps explain Kakuro?

Here is the relevant explanation: A row total 18 with fixed values 2, 4 and 7 requires 5 in the remaining cell.

While learning, what should I watch out for in Kakuro?

The key detail is this: Repeated digits in a run are forbidden even when the sum matches.

Before I begin, what format does Kakuro offer?

The key detail is this: Practise sums on twelve small, unblocked 4×4 grids. These teaching boards use whole-row and whole-column totals rather than the blocked runs of classic Kakuro.

While reading the Guide, which play mode does Kakuro use?

The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

For a quick reminder, where should I start with Kakuro?

Here is the relevant explanation: Compare a row total with its fixed entries.

On this playing page, do I need an account or a payment for Kakuro?

Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.

Before I begin, how can I find Kakuro again?

Here is the relevant explanation: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

For a quick reminder, how do I report an issue with Kakuro?

For clarity: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.