Underlay: Deduction Puzzle
Flip, remember, solve
Only for iPhone
Free · In‑App Purchases
iPhone
Peek under the tiles for half a second, remember what you saw, and work out the hidden board. 150 levels, a daily puzzle and no interruptions.
Every tile hides an animal. You get half a second to glimpse two of them. Then they flip back.
Remember what you saw. Work out what lies under the rest. Every row and every column holds each animal exactly once, so a little memory and a little logic will crack the board.
HOW IT WORKS
* Tap two tiles to peek at them. One pair costs one move.
* Find two of the same animal? They lock in and the move comes back.
* Double-tap a tile to mark the animal you think is under it.
* Mark every tile, then press Check.
WHAT YOU GET
* 150 levels that grow from a tiny 3x3 board to a big 8x8 board
* New rules as you go: shaded boxes and diagonals that must also hold every animal once
* Twists on harder levels: Noise and Swap
* A daily puzzle with a streak, the same for everyone
* Timed run: solve as many boards as you can in three minutes
* Endless mode that gets harder with every board
* Zen mode with no limits, where you choose the size and rules
* Stars for solving in fewer moves
* Combos when you find matches in a row
* Eight realistic animals, one for each color, so the game works for color-blind players too
* Light and dark themes and four tile color palettes
* Game Center leaderboards
FAIR AND CALM
No forced ads. No lives. No waiting. Every level can be solved by thinking alone. Optional boosts, like Peek, can be bought with coins you earn by playing, but you never need them. An optional ad in the Shop gives free coins if you choose to watch it.
Made by one small studio. If you enjoy it, a rating helps a lot.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Antomic Tech Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Antomic Tech Pty Ltd
- Size
- 5.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 26.6 or later.
- iPhone
Requires iOS 26.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- 300 Coins $2.99
- 100 Coins $0.99
- Unlimited Peek $2.99
- Copyright
- © 2026 Antomic Tech Pty Ltd
