Sharkdoku
A Relaxing Logic Puzzle Game

A little ocean of colour. A satisfying challenge for your mind.

Find the right place for every shark using rows, columns, and coloured regions. Learn the rules, spot the clues, and watch the puzzle come together.

How to play Sharkdoku

Every shark needs its own space. Follow these four rules:

• Place exactly one shark in each row.

• Place exactly one shark in each column.

• Place exactly one shark in each coloured region.

• Sharks cannot touch each other, even diagonally.

Start with the clearest clue, then cross out squares where a shark cannot go.

Your first move: look for a region with one square

If a coloured region contains just one square, its shark must go there. You can then eliminate the other squares in that row and column, along with the squares touching the shark. Each deduction gives you more information for the next move.

Enjoy Sudoku and Queens-style puzzles? Meet Sharkdoku

Sharkdoku brings colourful characters to a placement puzzle built around logical deduction. If you enjoy working through possibilities and finding the one square that fits, there’s plenty to explore here.

Sudoku players will recognise the satisfaction of using rows and columns to narrow down a solution. Fans of Queens-style puzzles will find familiar ideas in coloured regions and pieces that cannot touch.

What is Sharkdoku?
Sharkdoku is a colourful logic puzzle game for Android from Digital Kreeda. You place sharks on a grid while following rules about rows, columns, coloured regions, and neighbouring squares.

Is Sharkdoku the same as Sudoku?
No. Sudoku uses numbers, while Sharkdoku uses shark placement and coloured regions. Both involve using logical deductions to narrow down possibilities.

Is Sharkdoku similar to a Queens puzzle?
It shares ideas with Queens-style region puzzles, including one piece per row, column, and coloured region, with no touching pieces. Sharkdoku presents these ideas through its shark characters and ocean theme.

Do I need to know Sudoku to play?
No. You can begin by learning Sharkdoku’s four placement rules.

Where can I download Sharkdoku?
Sharkdoku is available for Android on Google Play.

Who makes Sharkdoku?
Sharkdoku is developed by Digital Kreeda.

Explore Sharkdoku and put your next deduction to the test