Game guide · GDXIANGSHUN
Kakurasu: instructions and practice
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. Keep the goal in mind before your next move. 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.
Give this approach a try
Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Keep the goal in mind before your next move.
The goal to keep in mind
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.
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. Try the rule on the board, then read the next instruction.
One way to understand the rules
Check the rule below as you play. 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.
An important reminder
Begin with the basic rule, then follow the result of your action. 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.
Answers about the rules and controls
During a round, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The instructions above use these same rules.
How do the controls work?
Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. The controls work with mouse or touch.
During a round, 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.
On this page, which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. The controls work with mouse or touch.
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.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. No download or player account is required.
On this page, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. Use the labelled controls for your next action.
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. The instructions above use these same rules.
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.
When I start, can I clear a square?
Yes. Tap a marked square again, or use Undo. Scores here do not represent cash or prizes.