Game guide · XBZJZX
Learn your way around 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. The game area remains available above the explanation. 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.
Practice beyond the first move
Use the controls beside the game rather than guessing the rules. Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
Understand the aim
Read the position before choosing your next 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.
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.
Controls
Check the rule below as you play. 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
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.
One detail worth checking
Take a moment to check the current turn. The value is the position in the row or column, not a uniform count of marked squares. Try the rule on the board, then read the next instruction.
If you are unsure
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. The controls work with mouse or touch.
Which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. Scores here do not represent cash or prizes.
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. The worked example offers another way to follow the rule.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. No download or player account is required.
When I start, 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.
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 game is played locally in your browser.
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. You can start a new round from the game controls.
During a round, can I clear a square?
Yes. Tap a marked square again, or use Undo. You can start a new round from the game controls.
