Skip to main content

Hard Mini Sudoku Puzzles

Page 28 of 60 · 760 puzzles

6×6 Hard Puzzles

10 puzzles

View all 6×6 puzzles →
Hard
6×6

Mini Sudoku 6x6 #0811

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0812

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

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0813

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

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0814

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0815

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0816

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0817

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0818

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

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0819

A hard 6×6 board with 10 clues. One unique solution.

10/16/2026Play puzzle
Hard
6×6

Mini Sudoku 6x6 #0820

A hard 6×6 board with 10 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.

← Back to puzzle library