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Hard Mini Sudoku Puzzles

Page 19 of 60 · 760 puzzles

6×6 Hard Puzzles

10 puzzles

View all 6×6 puzzles →
Hard
6×6

Mini Sudoku 6x6 #0721

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0722

A hard 6×6 board with 12 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0723

A hard 6×6 board with 12 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0724

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0725

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0726

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0727

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0728

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0729

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0730

A hard 6×6 board with 11 clues. One unique solution.

10/16/2026Play puzzle

Hard Mini Sudoku puzzles have about the fewest clues that scanning can still finish, 10 to 12 on a 6×6, like a Thursday to Sunday daily.

You never need pencil marks or a guess, but the opening is narrow and some boards need a row or column scan to get going again.

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