A note for careful observers

Woofdoku
- Queen Sudoku
Puzzle

Find every hidden dog through pure logic. Each board has a solution waiting in the clues.

Woofdoku app icon showing a dog on a colorful grid Relaxing deduction, one thoughtful move at a time.
Available onGoogle Play
Logic in color Observe / mark / reveal
01 The board's quiet logic

Look once. Notice twice.
Reveal with confidence.

RULE 01

One per color

Every color holds one hidden dog.

RULE 02

Clear rows & columns

Each row and each column has only one dog.

RULE 03

Give space

The eight tiles surrounding a dog never contain another.

A small ritual
for each board.

Use the board to keep track of what the clues tell you, then reveal every remaining dog.

01

Read

Take in the color, row, and column clues.

02

Mark

Tap or drag to place X marks as you narrow the options.

03

Reveal

Double tap a block when the deduction is clear.

04

Continue

Move at your own pace through increasingly challenging levels.

Ready when you are

Take a careful look.
Then find them all.

Woofdoku brings simple rules, satisfying deduction, and a growing collection of handcrafted boards together.

Available onGoogle Play