Game guide · SBBEN
Find your footing in Kakurasu
Keep the goal in view while choosing a move. Mark cells so every weighted row total and column total matches its clue. Try the rule on the board, then read the next instruction. 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 with a purpose
Take a moment to check the current turn. Tap cells to mark or clear them. Current totals are displayed alongside the target totals.
Your objective
Take a moment to check the current turn. 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 playing sequence
- 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.
Using the playing area
A careful first move helps you understand the round. 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.
Work through an example
Read the position before choosing your next action. 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.
Keep this in mind
The example and rules describe the same game you can play above. 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.
Clarifying the way this game works
For this game, 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. The worked example offers another way to follow the 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. Use the labelled controls for your next action.
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.
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 controls work with mouse or touch.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
On this page, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. The game is played locally in your browser.
For this game, why can row and column contributions differ?
A square in row 2, column 5 contributes 5 to its row and 2 to its column. A new round resets the current game.
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. The game is played locally in your browser.
Can I clear a square?
Yes. Tap a marked square again, or use Undo. A new round resets the current game.
