Neon Sudoku Express

Solve compact 9×9 sudoku puzzles in a glowing train station before your train departs—tap to enter numbers, use hints wisely, and race to the fastest time.

Created by @min

Category: Puzzles

How to play

Tap any empty cell to reveal a pop-up number pad (1–9) and a clear button.
Each row, column, and 3×3 box must contain digits 1–9 with no repeats.
Wrong entries flash red and count toward your mistake limit; correct the error quickly.
Use hints sparingly—each one reveals one correct cell and costs time on your score.

Play on Tinker