Game guide · MY2171
Learn your way around Kakurasu
Take a moment to check the current turn. Mark cells so every weighted row total and column total matches its clue. Start a new round when you are ready to try again. 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 small practice goal
Check the rule below as you play. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Start a new round when you are ready to try again.
The purpose of your moves
A careful first move helps you understand the round. Mark cells so every weighted row total and column total matches its clue. Keep the goal in mind before your next move.
How to proceed
- 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
Take a moment to check the current turn. Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. The game area remains available above the explanation.
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. Start a new round when you are ready to try again.
Where a round can go wrong
Keep the goal in view while choosing a move. The value is the position in the row or column, not a uniform count of marked squares.
Read these answers for extra help
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. 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. Scores here do not represent cash or prizes.
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. Use the labelled controls for your next action.
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. No download or player account is required.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Use the labelled controls for your next action.
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.
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. Scores here do not represent cash or prizes.
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 worked example offers another way to follow the rule.
On this page, can I clear a square?
Yes. Tap a marked square again, or use Undo. The instructions above use these same rules.
