Game guide · SXLANJU
Kakurasu: how a round works
Read the position before choosing your next 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.
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
Take a moment to check the current turn. Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
What you are aiming for
Mark cells so every weighted row total and column total matches its clue.
Work through the instructions
- 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
The board gives you the information needed for the next action. 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.
See the idea in action
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.
Check this before moving on
Check the rule below as you play. 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.
More answers before you play
During a round, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The game is played locally in your browser.
On this page, how do the controls work?
Tap a square to mark or clear it. Undo restores the last state. New puzzle generates another checked board. Scores here do not represent cash or prizes.
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. The controls work with mouse or touch.
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. Scores here do not represent cash or prizes.
During a round, 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.
For this game, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Scores here do not represent cash or prizes.
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.
During a round, 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.
During a round, 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.
On this page, can I clear a square?
Yes. Tap a marked square again, or use Undo. The worked example offers another way to follow the rule.