Diagonal Sudoku · 4×4 · 2026-07-18
Diagonal Sudoku 4×4
Easy
Complete the 4×4 Diagonal Sudoku grid.
Fill each empty cell with a number from 1 to 4. Each number must appear exactly once in every row, every column, every 2×2 box, and along both main diagonals.
When you finish, click “Check answer” to verify your solution.
Need a hint?
Remember to check both diagonals as well as the rows, columns, and 2×2 boxes. Start with an area that already contains the most numbers and determine which number is missing.
213
Select an empty square, choose a symbol, then check your answer.