Game guide · LCHFY
Kakurasu: rules and examples
Take a moment to check the current turn. 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.
Bring this focus to a round
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. Keep the goal in mind before your next move.
The goal to keep in mind
Use the controls beside the game rather than guessing the rules. 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
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. Start a new round when you are ready to try again.
Try this example
Take a moment to check the current turn. 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.
Check this before moving on
The board gives you the information needed for the next 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.
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. The worked example offers another way to follow the rule.
For this game, 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.
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. No download or player account is required.
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. Use the labelled controls for your next action.
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.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Keep the current game state in view while applying this rule.
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.
On this page, 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.
On this page, does each generated puzzle have one solution?
The generator searches the row-mask combinations and only accepts a puzzle with exactly one solution. No download or player account is required.
When I start, can I clear a square?
Yes. Tap a marked square again, or use Undo. A new round resets the current game.
