KNS Puzzles offers the following puzzle sizes and difficulty levels for publication. As you can see, there are currently 21 different puzzles to choose from, and each puzzle has several different options. If you would like a custom size or difficulty level not listed here, then please contact me.

If you would like to play these puzzles to give you an idea of how much fun they can be, you can visit my BrainBashers Playable Puzzles page to learn more, and to get a better understanding of which puzzles may suit your needs.

Can you solve 3 mathematical questions in 30 seconds? This puzzle is suitable for anyone who likes to challenge themselves, and to improve their mathematical ability.

I can supply 30 Seconds puzzles in the following size and difficulties:

Level 1 - Level 2 - Level 3

Take a look at my help for 30 seconds puzzles, where I show you how to solve this puzzle.

30 Seconds InfoCan you complete the grid without creating a 3-In-A-Row?

I can supply 3-In-A-Row puzzles in the following size and difficulties:

6 x 6 - Level 1 - Level 2

8 x 8 - Level 1 - Level 2

10 x 10 - Level 1 - Level 2

12 x 12 - Level 1 - Level 2

14 x 14 - Level 1 - Level 2

18 x 18 - Level 1

Take a look at my help for 3-In-A-Row puzzles, where I show you how to solve this puzzle.

3-In-A-Row InfoCan you find the A, B, and C in each row and column?

I can supply ABC View puzzles in the following size and difficulties:

5 x 5 - Puzzle 1

5 x 5 - Puzzle 2

5 x 5 - Puzzle 3

5 x 5 - Puzzle 4

5 x 5 - Puzzle 5

5 x 5 - Puzzle 6

Take a look at my help for ABC View puzzles, where I show you how to solve this puzzle.

ABC View InfoCan you find all of the hidden ships?

I can supply Battleships puzzles in the following size and difficulties:

6 x 6 - Puzzle - A - B - C - D - E

7 x 7 - Puzzle - A - B - C - D - E

8 x 8 - Puzzle - A - B - C - D - E

10 x 10 - Puzzle - A - B - C - D - E

12 x 12 - Puzzle - A - B - C - D - E

15 x 15 - Puzzle - A

Take a look at my help for Battleships puzzles, where I show you how to solve this puzzle.

Battleships InfoCan you connect all of the islands with bridges?

I can supply Bridges puzzles in the following size and difficulties:

7 x 7 - Level 1 - Level 2 - Level 3

10 x 10 - Level 1 - Level 2 - Level 3

15 x 15 - Level 1 - Level 2 - Level 3

20 x 20 - Level 1 - Level 2 - Level 3

25 x 25 - Level 1

Take a look at my help for Bridges puzzles, where I show you how to solve this puzzle.

Bridges InfoCan you complete the grid and satisfy the mathematical cage clues?

I can supply CalcuDoku puzzles in the following size and difficulties:

4 x 4 - Level 1 - Level 2 - Level 3

5 x 5 - Level 1 - Level 2 - Level 3

6 x 6 - Level 1 - Level 2 - Level 3

7 x 7 - Level 1 - Level 2 - Level 3

8 x 8 - Level 1 - Level 2 - Level 3

9 x 9 - Level 1

Take a look at my help for CalcuDoku puzzles, where I show you how to solve this puzzle.

CalcuDoku InfoCan you find all of the groups?

I can supply Fillomino puzzles in the following size and difficulties:

8 x 8 - Level 1

12 x 12 - Level 1

16 x 16 - Level 1

20 x 20 - Level 1

Take a look at my help for Fillomino puzzles, where I show you how to solve this puzzle.

Fillomino InfoCan you complete the grid and satisfy the < > symbols?

I can supply Futoshiki puzzles in the following size and difficulties:

4 x 4 - Level 1 - Level 2

5 x 5 - Level 1 - Level 2

6 x 6 - Level 1 - Level 2

7 x 7 - Level 1 - Level 2

9 x 9 - Level 1

Take a look at my help for Futoshiki puzzles, where I show you how to solve this puzzle.

Futoshiki InfoCan you eliminate numbers until there are no duplicates?

I can supply Hitori puzzles in the following size and difficulties:

5 x 5 - Level 1 - Level 2

6 x 6 - Level 1 - Level 2

7 x 7 - Level 1 - Level 2

8 x 8 - Level 1 - Level 2

9 x 9 - Level 1 - Level 2

12 x 12 - Level 1

Take a look at my help for Hitori puzzles, where I show you how to solve this puzzle.

Hitori InfoCan you complete the grid and satisfy the addition cage clues?

I can supply Killer Sudoku in the following size and difficulties:

Level 1 - Level 2 - Level 3 - Level 4

Take a look at my help for Killer Sudoku, where I show you how to solve this puzzle.

Killer Sudoku InfoCan you place bulbs on the grid and light every square?

I can supply Light Up puzzles in the following size and difficulties:

5 x 5 - Level 1 - Level 2 - Level 3

7 x 7 - Level 1 - Level 2 - Level 3

10 x 10 - Level 1 - Level 2 - Level 3

15 x 15 - Level 1 - Level 2 - Level 3

20 x 20 - Level 1 - Level 2 - Level 3

25 x 25 - Level 1

Take a look at my help for Light Up puzzles, where I show you how to solve this puzzle.

Light Up InfoCan you make the sums correct?

I can supply MathemaGrids puzzles in the following size and difficulties:

Puzzle A - 0 - 1 - 2 - 3 - random hints

Puzzle B - 0 - 1 - 2 - 3 - random hints

Puzzle C - 0 - 1 - 2 - 3 - random hints

Take a look at my help for MathemaGrids puzzles, where I show you how to solve this puzzle.

MathemaGrids InfoCan you complete the grid and satisfy the neighbour symbols?

I can supply Neighbours puzzles in the following size and difficulties:

4 x 4 - Level 1

5 x 5 - Level 1 - Level 2

6 x 6 - Level 1 - Level 2

7 x 7 - Level 1 - Level 2

9 x 9 - Level 1

Take a look at my help for Neighbours puzzles, where I show you how to solve this puzzle.

Neighbours InfoCan you find all of the blocks?

I can supply Nonogrids puzzles in the following size and difficulties:

5 x 5 - Level 1

10 x 10 - Level 1

15 x 15 - Level 1

20 x 20 - Level 1

25 x 25 - Level 1

30 x 30 - Level 1

Take a look at my help for Nonogrids puzzles, where I show you how to solve this puzzle.

Nonogrids InfoCan you limit the visible range from each numbered cell?

I can supply Range puzzles in the following size and difficulties:

4 x 3 - Level 1

5 x 4 - Level 1

6 x 5 - Level 1

7 x 6 - Level 1

8 x 7 - Level 1

10 x 8 - Level 1

12 x 9 - Level 1

15 x 10 - Level 1

20 x 15 - Level 1

Take a look at my help for Range puzzles, where I show you how to solve this puzzle.

Range InfoCan you find where all of the skyscrapers are?

I can supply Skyscrapers puzzles in the following size and difficulties:

4 x 4 - Level 1 - Level 2

5 x 5 - Level 1 - Level 2 - Level 3

6 x 6 - Level 1 - Level 2 - Level 3

7 x 7 - Level 1 - Level 2 - Level 3

8 x 8 - Level 1 - Level 2 - Level 3

9 x 9 - Level 1

Take a look at my help for Skyscrapers puzzles, where I show you how to solve this puzzle.

Skyscrapers InfoCan you replace all of the crosses with slanted lines?

I can supply Slants puzzles in the following size and difficulties:

4 x 4 - Level 1

6 x 4 - Level 1

7 x 5 - Level 1

8 x 6 - Level 1

10 x 8 - Level 1

12 x 10 - Level 1

15 x 12 - Level 1

17 x 15 - Level 1

Take a look at my help for Slants puzzles, where I show you how to solve this puzzle.

Slants InfoCan you join the dots to form a single loop?

I can supply Slitherlink puzzles in the following size and difficulties:

5 x 5 - Level 1 - Level 2 - Level 3

7 x 7 - Level 1 - Level 2 - Level 3

10 x 10 - Level 1 - Level 2 - Level 3

15 x 15 - Level 1 - Level 2 - Level 3

20 x 20 - Level 1

Take a look at my help for Slitherlink puzzles, where I show you how to solve this puzzle.

Slitherlink InfoCan you solve a classic Sudoku puzzle?

I can supply Sudoku in the following size and difficulties:

Level 1 - Level 2 - Level 3 - Level 4 - Level 5 - Level 6

Take a look at my help for Sudoku, where I show you how to solve this puzzle.

Sudoku InfoCan you find all of the tents in the forest?

I can supply Tents puzzles in the following size and difficulties:

8 x 8 - Level 1 - Level 2

12 x 12 - Level 1 - Level 2

16 x 16 - Level 1 - Level 2

20 x 20 - Level 1

Take a look at my help for Tents puzzles, where I show you how to solve this puzzle.

Tents InfoCan you find the route of the track?

I can supply Tracks puzzles in the following size and difficulties:

4 x 4 - Puzzle A - B

5 x 5 - Puzzle A - B

6 x 6 - Puzzle A - B

7 x 7 - Puzzle A - B

8 x 8 - Puzzle A - B

9 x 9 - Puzzle A - B

10 x 10 - Puzzle A - B

12 x 12 - Level 1

Take a look at my help for Tracks puzzles, where I show you how to solve this puzzle.

Tracks Info