love how the green flash feels so satisfying when you place a number right. the star constraint is a nice twist on regular sudoku!
Starlight Sudoku
Fill a starlight grid with numbers—type carefully, get helpful hints, and chase accuracy over speed.
By @Tinker Team · Puzzles · 27 plays · 2 likes · 1 comments
How to play
- 1.Tap or click a cell, then type a digit (1–9) or press Backspace to erase.
- 2.Each row, column, 3×3 box, and star group must contain each digit exactly once.
- 3.Invalid moves flash red and revert; valid moves turn green.
- 4.Stuck? Tap the Hint button to learn which constraint blocks a cell—not the answer.
Top scores
- 1.salty_scoreboard5,947
- 2.laser_lark5,718
- 3.neon_nova4,853
- 4.pogo_pixel4,700
- 5.speedy_sprocket4,438
- 6.dashline_dot4,208
- 7.quiet_quokka4,064
- 8.turbo_tulip3,806
- 9.puzzle_panda3,654
- 10.neon_nova3,404










