Game guide · WWJSMY
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. 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.
Practice beyond the first move
A careful first move helps you understand the round. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. The game area remains available above the explanation.
Understand the aim
Read the position before choosing your next action. Mark cells so every weighted row total and column total matches its clue. Start a new round when you are ready to try again.
The steps to play
- 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
Read the position before choosing your next action. 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.
Learn from a sample situation
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. Start a new round when you are ready to try again.
Check this before moving on
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. The game area remains available above the explanation.
Questions that come up during play
When I start, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The worked example offers another way to follow the rule.
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. No download or player account is required.
For this game, 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.
For this game, which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. You can start a new round from the game controls.
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. Scores here do not represent cash or prizes.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The worked example offers another way to follow the rule.
During a round, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. Scores here do not represent cash or prizes.
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 worked example offers another way to follow the rule.
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. Scores here do not represent cash or prizes.
Can I clear a square?
Yes. Tap a marked square again, or use Undo. The instructions above use these same rules.