Game guide · CSDJJY
Understand the basics of Kakurasu
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. 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.
Take a closer look while playing
A careful first move helps you understand the round. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Try the rule on the board, then read the next instruction.
The challenge in front of you
Use the controls beside the game rather than guessing the rules. Mark cells so every weighted row total and column total matches its clue. The game area remains available above the explanation.
Step by step
- 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
Use the controls beside the game rather than guessing the rules. Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Start a new round when you are ready to try again.
Put the rules into context
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. Try the rule on the board, then read the next instruction.
Watch out for this
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. Start a new round when you are ready to try again.
A few questions answered
On this page, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. Keep the current game state in view while applying this 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. The game is played locally in your browser.
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. You can start a new round from the game controls.
During a round, which mistake should I avoid?
The value is the position in the row or column, not a uniform count of marked squares. No download or player account is required.
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. No download or player account is required.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Scores here do not represent cash or prizes.
For this game, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. The instructions above use these same rules.
When I start, 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.
For this game, 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.
During a round, can I clear a square?
Yes. Tap a marked square again, or use Undo. The game is played locally in your browser.
