Puppy Logic: Brain Puzzle Game

Puppy Logic is a brain puzzle game built on one clear set of rules and the quiet satisfaction of working a board out. No timers, no guessing, no luck -- just logic.

How it works
Place exactly one puppy in every row, column, and coloured region. Puppies cannot touch, even diagonally. Tap a square to rule it out with an X, double-tap to place a puppy, and swipe to rule out a whole run at once. Every level has exactly one solution, and the three rules stay on screen above the board so you never have to go looking for them.

If you like Star Battle, Queens, Sudoku, nonograms, or any logic puzzle where deduction beats guessing, these rules will feel familiar within a level or two. The puppies are the new part.

Every guess counts
Each level gives you three biscuits. Put a puppy where one cannot go and it costs a biscuit, so the board pushes back and solving it is something you earn. Run out and you can start the level over, or watch an optional ad to carry on with the board you already have.

When a guess is wrong, the board says why
Run into a puppy that is already down and the game does not simply take a biscuit. It draws the line between the two squares -- along the row or column, around the colour that is already spoken for, or around the ring of squares a puppy may not touch -- and lights up the rule you ran into. A mistake becomes something you can learn from instead of something that just happened. Three correct puppies in a row earns a word, said out loud, and it grows with the run.

A Coach that explains
Puppy Coach reads the board, tells you which rule applies right now and why, then offers to carry that step out for you. Show Move simply points at a move when you would rather not think it through. Undo takes your last move back, whether that was one square or a whole swiped run. Each tool comes with free uses to start -- Undo gets two on every level, refilled when you move on or restart -- and after those, one optional ad adds one use to your count, and it stays there until you choose to spend it. Restarting a level is always free.

Plenty to solve
Work through 1,000 original levels on boards from 4x4 up to 10x10. The puzzles follow how you play: clear them cleanly and they get harder, get stuck and they ease off, and every tenth level from 21 is a marked hard one. Choose any unlocked level, keep a separate unfinished board for each one, and return later without losing your place. A Daily Puzzle gives you another board to think about each day.

Fair by design
Every puzzle plays offline -- on a plane, underground, anywhere with no signal. There is no account and nothing to buy. No ad ever covers a board you are working on. After ten finished levels and a second session, a labelled banner sits below the board and a full-screen ad can play as a new level opens - not during a puzzle, not on the screen where you finished one, and never in the first two levels of a session. A rewarded ad is never forced: watching one is always your choice, and it makes the full-screen one less likely for the rest of that session. Progress and settings stay in Android app storage, although Android may include them in your Google account system backup.

A brain game for a quiet ten minutes
Puppy Logic is an offline logic puzzle game you can pick up for one board or for ten. It asks for attention rather than speed and rewards clean deduction over trial and error. Brain training without a stopwatch, and a puzzle game that works with no wifi.

Puppy Logic is operated by NEXTB LTD.