BirdDuko

BirdDuko is a calm logic puzzle where every colour patch hides exactly one bird and it is up to you to work out where they are sitting. Place one bird per colour, never two in the same row or column, and never two touching - not even corner to corner. Boards start at a gentle 4x4 and grow up to 9x9.

How to Play BirdDuko

Tap a square once to cross it out, and tap a crossed square again to place a bird. Tap a bird to remove it, or drag across squares to cross out several at once. A wrong bird costs a heart, and losing all three restarts the level. Use Hint to reveal a bird and Undo to step back.

Game Features

• Sudoku-style deduction with one bird per colour, row and column
• Boards from 4x4 to 9x9 and new levels that keep coming
• Hints and undo plus three hearts per level
• Relaxing pace - no timer, just logic

More Logic Puzzles

Like this kind of puzzle? Capybas plays by similar rules, and Klumen is just as calm.

Tap a square once to cross it out. Tap a crossed square again to place a bird. Tap a bird to remove it. Drag across squares to cross out several at once. Rules: one bird per colour patch, one per row and column, and birds may not touch, even diagonally. A wrong bird costs a heart; lose all 3 and the level restarts. Use Hint to reveal a bird and Undo to step back.