Game guide · HRBJFRHG
Follow the steps for Kakurasu
Mark cells so every weighted row total and column total matches its clue. The game area remains available above the explanation. A 5×5 grid shows target sums at the right and bottom. Try the rule on the board, then read the next instruction.
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
Take a moment to check the current turn. 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
The example and rules describe the same game you can play above. Mark cells so every weighted row total and column total matches its clue.
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.
Making selections and moves
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. The game area remains available above the explanation.
Put the rules into context
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.
Where a round can go wrong
A careful first move helps you understand the round. 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.
Read these answers for extra help
For this game, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The controls work with mouse or touch.
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. A new round resets the current game.
During a round, 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 game is played locally in your browser.
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. Use the labelled controls for your next action.
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. You can start a new round from the game controls.
For this game, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
During a round, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. No download or player account is required.
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. No download or player account is required.
On this page, can I clear a square?
Yes. Tap a marked square again, or use Undo. Scores here do not represent cash or prizes.
