Game guide · ZJJ-HC
Kakurasu: how a round works
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. The game area remains available above the explanation. 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.
Bring this focus to a round
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.
What you are aiming for
Use the controls beside the game rather than guessing the rules. Mark cells so every weighted row total and column total matches its clue. Try the rule on the board, then read the next instruction.
How a round unfolds
- 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
The board gives you the information needed for the next action. 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.
Follow the example
Read the position before choosing your 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. The game area remains available above the explanation.
A mistake to avoid
The board gives you the information needed for the 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.
Read these answers for extra help
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.
For this game, how do the controls work?
Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Scores here do not represent cash or prizes.
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. The game is played locally in your browser.
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. The instructions above use these same rules.
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 game is played locally in your browser.
During a round, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Scores here do not represent cash or prizes.
When I start, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. No download or player account is required.
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. Scores here do not represent cash or prizes.
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. Scores here do not represent cash or prizes.