6x6 Hard Sudoku Puzzles

Printable hard 6x6 Sudoku puzzles offer an engaging mental workout for puzzle enthusiasts seeking a challenge in a compact grid.

6x6 Sudoku puzzles come with each grid section divided into smaller 2x3 subgrids. The goal is to fill the grid with numbers from 1 to 6, ensuring no repetition in rows, columns, or the smaller subgrids.

Recommended: Check out our Printable Puzzle Books Collection to download and print.

Also try these puzzle makers to make your own custom printable puzzles.

Need Help? To get started, check out these instructions, goals and rules for how to solve puzzles

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6x6 Sudoku - Hard - 14

6x6 Sudoku - Hard - 14

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 7

6x6 Sudoku - Hard - 7

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 9

6x6 Sudoku - Hard - 9

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 3

6x6 Sudoku - Hard - 3

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 6

6x6 Sudoku - Hard - 6

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 1

6x6 Sudoku - Hard - 1

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 2

6x6 Sudoku - Hard - 2

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 13

6x6 Sudoku - Hard - 13

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 10

6x6 Sudoku - Hard - 10

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 15

6x6 Sudoku - Hard - 15

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 19

6x6 Sudoku - Hard - 19

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 11

6x6 Sudoku - Hard - 11

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 12

6x6 Sudoku - Hard - 12

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 20

6x6 Sudoku - Hard - 20

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 16

6x6 Sudoku - Hard - 16

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 18

6x6 Sudoku - Hard - 18

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 17

6x6 Sudoku - Hard - 17

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 8

6x6 Sudoku - Hard - 8

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 5

6x6 Sudoku - Hard - 5

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

6x6 Sudoku - Hard - 4

6x6 Sudoku - Hard - 4

6x6 Sudoku

Printable Sudoku Puzzles, Easy for Beginning Problem Solvers - with different levels of difficulty and variations with the number of grids. Simply download, print and play.

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Download our printable Sudoku puzzle books. Browse Printable Books Collection

Hard 6x6 Sudoku demands advanced logical reasoning and strategic thinking despite the moderate grid size. Solving these puzzles promotes problem-solving abilities, improved concentration, and a refined ability to recognize and apply logical patterns.

These puzzles offer an intellectually rewarding pastime that can be enjoyed anytime, anywhere.