Game guide · FONPER
Rules, controls and help for Kakurasu
Read the position before choosing your next action. 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.
Generated 5×5 puzzles with an exact row-mask search for uniqueness before publication to the board. No calibrated difficulty labels.
Practice with a purpose
Keep the goal in view while choosing a move. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. The game area remains available above the explanation.
Aim for this result
Begin with the basic rule, then follow the result of your action. Mark cells so every weighted row total and column total matches its clue. Try the rule on the board, then read the next instruction.
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.
Input guidance
Read the position before choosing your next action. 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.
One way to understand the rules
The board gives you the information needed for the next action. 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.
Keep this in mind
Read the position before choosing your next action. 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.
More answers before you play
When I start, 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.
When I start, 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.
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. A new round resets the current game.
Which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. The instructions above use these same rules.
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. A new round resets the current game.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Scores here do not represent cash or prizes.
During a round, 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. You can start a new round from the game controls.
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. Use the labelled controls for your next action.
During a round, can I clear a square?
Yes. Tap a marked square again, or use Undo. Use the labelled controls for your next action.
