Skip to content
RCFUTURE11

Solo · FREE PLAY

Kakurasu

Read the rules ↓
Logic & numbers
Choose your controls and enjoy a free round.
No account neededRules & controls →

Game guide · RCFUTURE11

Know the goal in Kakurasu

Keep the goal in view while choosing a move. Mark cells so every weighted row total and column total matches its clue. A 5×5 grid shows target sums at the right and bottom. Keep the goal in mind before your next move.

Generated 5×5 puzzles with an exact row-mask search for uniqueness before publication to the board. No calibrated difficulty labels.

Give this approach a try

Take a moment to check the current turn. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Keep the goal in mind before your next move.

Aim for this result

The example and rules describe the same game you can play above. Mark cells so every weighted row total and column total matches its clue. The game area remains available above the explanation.

Making your moves

  1. A 5×5 grid shows target sums at the right and bottom.
  2. A marked cell contributes its column number to its row sum, and its row number to its column sum.
  3. Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
  4. Match all rows and columns to complete the puzzle. Each generated puzzle is checked to have one solution.

Making selections and moves

Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Start a new round when you are ready to try again.

Follow the example

Use the controls beside the game rather than guessing the rules. Marking columns 2 and 5 in the same row gives that row a total of 7. A mark in row 3 contributes 3 to its column. Try the rule on the board, then read the next instruction.

Watch out for this

Take a moment to check the current turn. The value is the position in the row or column, not a uniform count of marked squares. The game area remains available above the explanation.

Helpful answers for players

What is the aim of Kakurasu?

Mark cells so every weighted row total and column total matches its clue. The controls work with mouse or touch.

How do the controls work?

Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Keep the current game state in view while applying this rule.

During a round, can you show an example?

Marking columns 2 and 5 in the same row gives that row a total of 7. A mark in row 3 contributes 3 to its column. Scores here do not represent cash or prizes.

On this page, which mistake should I avoid?

The value is the position in the row or column, not a uniform count of marked squares. The game is played locally in your browser.

On this page, what rules and limits are used here?

Generated 5×5 puzzles with an exact row-mask search for uniqueness before publication to the board. No calibrated difficulty labels. The worked example offers another way to follow the rule.

For this game, how many people can play here?

Solo. This is local browser play, not internet matchmaking. No download or player account is required.

During a round, what does a marked square contribute?

Its column number to the row total, and its row number to the column total. A new round resets the current game.

For this game, why can row and column contributions differ?

A square in row 2, column 5 contributes 5 to its row and 2 to its column. The instructions above use these same rules.

When I start, does each generated puzzle have one solution?

The generator searches the row-mask combinations and only accepts a puzzle with exactly one solution. The game is played locally in your browser.

Can I clear a square?

Yes. Tap a marked square again, or use Undo. You can start a new round from the game controls.

Games

Choose your next round

View all games
Choose a Card Game (opens in a new tab)