Who this level is for
Medium Sudoku suits players who understand the rules and want longer chains of straightforward deductions.
SudokuIQ puzzle
Play Medium Sudoku online
Solve a free medium Sudoku with notes, smart hints, coaching and local progress. Each board is generated from a valid solved grid and checked for a unique solution.
Logic you will use
Expect repeated scanning, candidate comparison, hidden singles and occasional naked pairs.
How to practise
Keep candidate notes tidy and re-scan affected peers after every placement; one solved cell often creates the next single.
What makes Medium harder than Easy?
Medium puzzles usually expose fewer immediate singles, so you need candidate notes and repeated scanning before the next placement appears.
Which Academy lesson helps most?
Start with Hidden Singles, then learn Naked Pairs when candidates stop reducing one cell at a time.