Game guide · HKXLJJ
Read before your next round of Kakurasu
Begin with the basic rule, then follow the result of your action. 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.
Bring this focus to a round
Keep the goal in view while choosing a move. Tap cells to mark or clear them. Current totals are displayed alongside the target totals. Start a new round when you are ready to try again.
Your objective
The board gives you the information needed for the next action. Mark cells so every weighted row total and column total matches its clue. Start a new round when you are ready to try again.
Making your moves
- 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 your actions work
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. Start a new round when you are ready to try again.
Follow the 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. Try the rule on the board, then read the next instruction.
Keep this in mind
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.
Common questions
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.
During a round, 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. Use the labelled controls for your next action.
For this game, 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.
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.
How many people can play here?
Solo. This is local browser play, not internet matchmaking. No download or player account is required.
During a round, what does a marked square contribute?
Its column number to the row total, and its row number to the column total. The controls work with mouse or touch.
When I start, 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.
For this game, does each generated puzzle have one solution?
The generator searches the row-mask combinations and only accepts a puzzle with exactly one solution. A new round resets the current game.
During a round, can I clear a square?
Yes. Tap a marked square again, or use Undo. You can start a new round from the game controls.
