Hoshi Star Sudoku
A star Sudoku with extra outer-edge lines linking the six points.
Controls
Fill the star with 1–9. Each large triangle must contain every digit once, every straight line may not repeat a digit, and the outer edges also pair the star-point cells into nine-cell lines. Tap a cell and choose a number; Clear empties it and the answer button switches between the solution and your board.
Logic · Numbers · Deduction · Grid · Region
Brain training · PuzGo