Hoshi Sudoku
Fill a six-pointed star with 1–9 so every triangle and straight line stays unique.
Controls
Place 1–9 in every triangular cell of the six-pointed star. Each of the six large triangles must contain every digit exactly once. Every straight line across the star, including lines broken by gaps, must contain each digit at most once. Tap a cell and choose a number; use Clear to empty it and Show answer to reveal or hide the full grid.
Logic · Numbers · Deduction · Grid · Region
Brain training · PuzGo