Game guide · HONGENJY
Follow the steps for Kakurasu
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. 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 small practice goal
The board gives you the information needed for the next action. 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 need to achieve
Mark cells so every weighted row total and column total matches its clue. The game area remains available above the explanation.
Work through the instructions
- 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.
How your actions work
The example and rules describe the same game you can play above. 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
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. The game area remains available above the explanation.
Keep this in mind
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. Keep the goal in mind before your next move.
Common questions
What is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The controls work with mouse or touch.
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. 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. The instructions above use these same rules.
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. A new round resets the current game.
During a round, how many people can play here?
Solo. This is local browser play, not internet matchmaking. You can start a new round from the game controls.
When I start, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. The worked example offers another way to follow the rule.
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. No download or player account is required.
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. Keep the current game state in view while applying this rule.
During a round, can I clear a square?
Yes. Tap a marked square again, or use Undo. No download or player account is required.
