Sodogku: Dog Logic Puzzle

Sodogku is sudoku with dogs instead of numbers. Every board is a grid of colored regions, and every region hides one dog. Work out where each one goes: one dog per color, one per row and column, and no two touching, not even at the corners. Tap once to cross a square off, twice to place a dog. Get it wrong and it costs you a bone. Boards run from 4x4 up to 10x10. Every one has exactly one answer and you can reason your way to all of it, so there is never anything to guess. There is a new board every day as well, the same one for everybody. No account, no signup, nothing to sign in to. Sodogku Pro is a one-time purchase: no ads, unlimited offline play, and boosters topped back up at the start of every attempt. Go find the dogs.