An iPhone number puzzle by Source 120
Small turns.
Clever puzzles.
Turn four tiles at a time. Find 1, 2, 3 and 4 in every row, column and box. A turn that fixes one group can disturb another.
A small board with plenty to think about. Turn either way, retrace a move, and take as long as you like.
Currently in testing
Coming to the App Store after the first iPhone playtest.
5 warm-ups
Learn the moves.
40 Play levels
Build your way up.
20 challenges
Take a little longer.
Four tiles move together.
1. Choose a turn
Tap a round arrow between four tiles. Each tap rotates that group by a quarter-turn, clockwise or the other way.
2. Watch the whole board
Every row, column and outlined 2×2 box needs each number once. Neighbouring groups share tiles, so one change can affect several places.
3. Find your way through
Undo a move, try another direction or ask for a hint. There’s no timer and no rush to finish.
A little more to think about.
Plan a few turns ahead
Follow Play’s eight chapters or pick a standalone Challenge when you want something harder.
A nudge when you need one
Hints highlight a next turn. Finish new puzzles and Play chapters to earn extra hint credits.
Pick up where you left off
Your board, level, moves and hint balance stay saved on your iPhone for your next visit.
Play at your own pace.
Offline play. No accounts, advertising or analytics in the app. Light and dark appearances, optional gentle haptics and support for your iPhone’s Reduce Motion preference.