Game guide · XINVENTURES
Follow the steps for Kakurasu
Keep the goal in view while choosing a move. 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. 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.
Bring this focus to a round
The example and rules describe the same game you can play above. 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.
Your objective
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. Start a new round when you are ready to try again.
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.
How to use the controls
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. The game area remains available above the explanation.
Learn from a sample situation
Use the controls beside the game rather than guessing the rules. 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 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.
Answers about the rules and controls
For this game, what is the aim of Kakurasu?
Mark cells so every weighted row total and column total matches its clue. The instructions above use these same rules.
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 instructions above use these same rules.
On this page, 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.
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. The game is played locally in your browser.
For this game, 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. A new round resets the current game.
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.
On this page, 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 game is played locally in your browser.
Does each generated puzzle have one solution?
The generator searches the row-mask combinations and only accepts a puzzle with exactly one solution. Keep the current game state in view while applying this rule.
Can I clear a square?
Yes. Tap a marked square again, or use Undo. A new round resets the current game.