Game guide · YALONGJS
Kakurasu: instructions and practice
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. Keep the goal in mind before your next move. A 5×5 grid shows target sums at the right and bottom.
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
Read the position before choosing your next action. Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
What you need to achieve
Take a moment to check the current turn. Mark cells so every weighted row total and column total matches its clue.
Follow these playing steps
- 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.
Using the playing area
Keep the goal in view while choosing a move. Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Keep the goal in mind before your next move.
See the idea in action
Keep the goal in view while choosing a move. 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.
One detail worth checking
Use the controls beside the game rather than guessing the rules. The value is the position in the row or column, not a uniform count of marked squares. Start a new round when you are ready to try again.
Questions that come up during play
For this game, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. Scores here do not represent cash or prizes.
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. Use the labelled controls for your next action.
On this page, 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.
When I start, which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. A new round resets the current game.
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. Use the labelled controls for your next action.
For this game, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The instructions above use these same rules.
When I start, 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.
When I start, why can row and column contributions differ?
A square in row 2, column 5 contributes 5 to its row and 2 to its column. A new round resets the current game.
On this page, 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.
For this game, can I clear a square?
Yes. Tap a marked square again, or use Undo. Use the labelled controls for your next action.