Game guide · JNJPJZ
Kakurasu: what to know before playing
Keep the goal in view while choosing a move. Mark cells so every weighted row total and column total matches its clue. The game area remains available above the explanation. A 5×5 grid shows target sums at the right and bottom. Try the rule on the board, then read the next instruction.
Generated 5×5 puzzles with an exact row-mask search for uniqueness before publication to the board. No calibrated difficulty labels.
A focus for your next round
Check the rule below as you play. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Keep the goal in mind before your next move.
What you need to achieve
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. Start a new round when you are ready to try again.
Step by step
- A 5×5 grid shows target sums at the right and bottom.
- A marked cell contributes its column number to its row sum, and its row number to its column sum.
- Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
- Match all rows and columns to complete the puzzle. Each generated puzzle is checked to have one solution.
Getting comfortable with the controls
Begin with the basic rule, then follow the result of your action. Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board.
An example before you play
The example and rules describe the same game you can play above. 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.
Where a round can go wrong
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.
Questions that come up during play
On this page, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. No download or player account is required.
On this page, how do the controls work?
Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. No download or player account is required.
When I start, 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. Use the labelled controls for your next action.
For this game, which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. Scores here do not represent cash or prizes.
When I start, 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 instructions above use these same rules.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Use the labelled controls for your next action.
What does a marked square contribute?
Its column number to the row total, and its row number to the column total. Scores here do not represent cash or prizes.
On this page, 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 game is played locally in your browser.
During a round, does each generated puzzle have one solution?
The generator searches the row-mask combinations and only accepts a puzzle with exactly one solution. You can start a new round from the game controls.
For this game, can I clear a square?
Yes. Tap a marked square again, or use Undo. The game is played locally in your browser.