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Arrow Sudoku
Play Arrow Sudoku: classic rules plus arrows whose circled digit equals the sum of the digits along the arrow. Free, with difficulty levels.
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2
7
9
2
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8
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6
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9
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7
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5
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7
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9
Arrow Sudoku combines Sudoku with light arithmetic. Each arrow has a circled cell and a shaft: the digit in the circle must equal the sum of the digits along the shaft.
Because the circle can hold at most a 9, the shaft digits are always small; a two-cell shaft summing to a single circled digit forces tight, deducible combinations. Arrows and thermometers share the same "path" DNA, which is why solvers who enjoy one usually love the other.
Every arrow is drawn on the board for you, your entries are checked as you play, and each board is generated fresh with a single solution.
Rules
- All classic Sudoku rules apply.
- The digit in an arrow’s circle equals the sum of the digits along its shaft.
- Shaft cells may repeat a digit only if normal Sudoku rules allow it (different row, column and box).
Frequently asked questions
How does Arrow Sudoku work?
Each arrow’s circled cell holds a digit equal to the sum of the digits along the arrow’s shaft.
What is the difference between Arrow and Killer Sudoku?
Both use sums, but a killer cage sums to a printed number with no repeats, while an arrow sums to a digit that lives inside the puzzle — the circled cell.
Explore more Sudoku
Try another variant, play the classic game, or sharpen up with the strategy guides.
Play classic Sudoku free →