Neon Nimbus Square: Sudoku

Neon Nimbus Square turns a compact 4x4 grid into a bright logic challenge. Tap a cell, choose a digit from 1 to 4, and complete each row, column, and 2x2 box without repeats.

Early levels help you learn the pattern, while later boards ask you to compare clues, test placements, and think a few moves ahead. Use hints when stuck, clear mistakes with the number pad, and replay stages to sharpen every solve.