DoggoDoku: Dog Logic Puzzle

DoggoDoku is a logic puzzle about placing dogs. Every row, every column and every color needs exactly one dog, and no two dogs can touch, not even diagonally. Each board has a single solution, and you can always reach it by reasoning, without guessing.

The whole game is free to play. There are no ads or timers, and no subscription.

- 300 levels, starting with small 5x5 boards and working up to 8x8 experts - Trick cards that explain each new technique when you first need it - Hints that show you the next move and explain why it works - 30 dog breeds to meet along the way, each with a fact about the breed - Plays on iPhone and iPad, offline, with no account or sign-up - Four color palettes, three of them tuned for specific kinds of color blindness, plus optional patterns, region borders and a dark theme - Separate switches for the barks, tile clicks, win fanfare and music

If you want more, a one-time $2.99 unlock adds Board Maker. You can draw your own puzzles, generate as many as you like at any size and difficulty, make packs of up to 50 boards at once, and share a board as a link that plays in any browser, even without the app. Future Board Maker features are included, and there's nothing to renew.

If you like sudoku, queens, star battle or nonograms, give it a try.

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