First expert‑level sudoku puzzle 58 empty cells Expert

First expert‑level sudoku puzzle

~40–60 min
Sudoku high difficulty №1 52 empty cells Hard

Sudoku high difficulty №1

~25–40 min
Sudoku easy difficulty №1 35 empty cells Easy

Sudoku easy difficulty №1

~5–10 min
Medium Sudoku №1 45 empty cells Medium

Medium Sudoku №1

~15–25 min
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