Shoals: Logic Charts
In-app purchases
Everyone
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Downloads
About this game
An old sea chart, a quiet bay, and rocks hidden under the water. Sound a square and it shows its depth: how many rocks touch it. Put a buoy on every rock you are sure of, and chart the whole bay without running aground.
Shoals is a calm, clever logic puzzle. There is no luck and no guessing: every chart can be solved by reasoning alone, from the first square to the last.
HOW YOU PLAY
• Tap a covered square to sound it. Open water shows its depth; a 0 opens the water around it.
• Long-press a square (or switch to Buoy) to put a buoy on a rock.
• Tap a depth that has all its buoys to sound the rest of its squares at once.
• Notes in the chart margin count the rocks in a row or column. {3} means they lie in one run, -3- means they are split into groups.
• The rocks counter is a clue too.
• A wrong move never ends the game: the chart shakes, nothing changes, and you keep going.
• Undo and redo any move.
HINTS THAT TEACH
Stuck? The hint first outlines the clues to read, then explains the reasoning – and only makes the move if you ask. The first time a new idea comes up, it is explained in general, so you learn the trick instead of just getting the answer.
280 CHARTS, FOUR DIFFICULTIES
• Easy – small bays and a five-level tutorial that teaches every idea you need
• Medium – bigger charts and your first margin notes
• Hard – runs and groups in the margins
• Expert – 9×12 charts where every clue counts
All 40 Easy charts and the first 10 charts of Medium, Hard and Expert are free. More charts come in one-time packs, or unlock everything at once. No subscriptions, no ads, no account.
MADE FOR THINKERS
• Plays fully offline
• No account, no ads: only anonymous usage stats and crash reports, which you can turn off
• Your progress and best times stay on your device
• A parchment-and-ink look with soft sonar pings
If you enjoy logic puzzles, Sudoku, nonograms or classic "find the hidden squares" puzzles, Shoals is your next favourite.
Shoals is a calm, clever logic puzzle. There is no luck and no guessing: every chart can be solved by reasoning alone, from the first square to the last.
HOW YOU PLAY
• Tap a covered square to sound it. Open water shows its depth; a 0 opens the water around it.
• Long-press a square (or switch to Buoy) to put a buoy on a rock.
• Tap a depth that has all its buoys to sound the rest of its squares at once.
• Notes in the chart margin count the rocks in a row or column. {3} means they lie in one run, -3- means they are split into groups.
• The rocks counter is a clue too.
• A wrong move never ends the game: the chart shakes, nothing changes, and you keep going.
• Undo and redo any move.
HINTS THAT TEACH
Stuck? The hint first outlines the clues to read, then explains the reasoning – and only makes the move if you ask. The first time a new idea comes up, it is explained in general, so you learn the trick instead of just getting the answer.
280 CHARTS, FOUR DIFFICULTIES
• Easy – small bays and a five-level tutorial that teaches every idea you need
• Medium – bigger charts and your first margin notes
• Hard – runs and groups in the margins
• Expert – 9×12 charts where every clue counts
All 40 Easy charts and the first 10 charts of Medium, Hard and Expert are free. More charts come in one-time packs, or unlock everything at once. No subscriptions, no ads, no account.
MADE FOR THINKERS
• Plays fully offline
• No account, no ads: only anonymous usage stats and crash reports, which you can turn off
• Your progress and best times stay on your device
• A parchment-and-ink look with soft sonar pings
If you enjoy logic puzzles, Sudoku, nonograms or classic "find the hidden squares" puzzles, Shoals is your next favourite.
Chart the hidden rocks of a quiet bay by pure logic. No guessing, ever.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesFinancial info, App activity and 2 others
- Data is encrypted in transit
- You can request that data be deleted
What’s new
Shoals is here: 280 no-guess logic charts of a quiet bay, with hints that teach. In English, German and French.
App support
About the developer
MACHCODE PAWEŁ MACHOWSKI
contact@machcode.dev
Ul. Leśna 31-1
32-085 Modlnica
Poland
+48 666 461 542
