Sonar
The site's own puzzle: find the sunken wrecks. Each buoy shows how many rings away the nearest wreck lies, and wrecks never touch. A new puzzle whenever you like, in three difficulties.
- 1 player
- 3–30 min
- Logic puzzle
- Our own game
- Solo
Try it right away, without an account: 4 rounds a day. With an account you play as much as you like and get on the top list. Free during the beta, no ads and nothing to download. Play in the browser on a computer, tablet or phone.
How to play
- A number of sunken wrecks lie in the sea. How many is shown under the board. Your task is to find them all.
- Each yellow buoy shows the distance to the nearest wreck, counted in rings around the buoy. 1 means a wreck lies in one of the 8 cells around the buoy, 2 means it lies in the ring outside that, and so on.
- No wreck lies closer to the buoy than its number. Everything inside the ring is empty water.
- Two wrecks never touch, not even diagonally. No wreck lies on a buoy.
Using the game
- Choose Wreck and tap a cell to place a wreck. Tap again to remove it.
- Choose Water to mark cells where no wreck can lie. Drag across cells to mark many at once.
- Tap a buoy to see its ring: the cells inside fade and the ring where the wreck must lie is outlined.
- A buoy turns green when a wreck lies on its ring, and red if a wreck is too close.
- The puzzle is solved when every wreck is in the right place. Water marks are just for you.
Difficulty
- Easy: 6 × 6 cells and 4 wrecks. Everything shows right away: clear the cells inside the rings, and look for rings with only one free cell left. 3–8 minutes.
- Medium: 8 × 8 cells and 7 wrecks. Needs shadows and counting rings (see the tips below). 8–15 minutes.
- Hard: 9 × 10 cells, 10 wrecks and few buoys. Sometimes you must think "what if there were a wreck here" and see that it does not work. 15–30 minutes.
Keyboard
- Arrow keys: move between cells
- Z: Wreck mode
- X: Water mode
- Space / Enter: place or remove in the selected cell
- 1: wreck in the selected cell
- 2: water in the selected cell
- Backspace / Delete / 0: clear the selected cell
- Click and drag: mark many cells as water at once
- Ctrl + Z or U: undo
- H: hint
- P: pause
Questions
What kind of game is Sonar?
A new puzzle made for this games site. It has a bit of the feel of Battleship and Minesweeper, but the buoys measure distance instead of counting neighbours, which gives quite different ways of thinking.
Is there always a unique solution?
Yes. Every puzzle is made here and checked so that it can be solved by logic all the way, without guessing. That means there is only one solution.
Is my puzzle saved?
Yes, in this browser. You can close the page and continue later. Best times are saved per difficulty.
Can I play the same puzzle as a friend?
Yes. Tap the puzzle code and send the link.
Questions and answers
How do you play Sonar?
The site's own puzzle: find the sunken wrecks. Each buoy shows how many rings away the nearest wreck lies, and wrecks never touch. A new puzzle whenever you like, in three difficulties. The full rules are above.
How many can play Sonar?
Sonar is played alone.
How long does a game of Sonar take?
About 3–30 minutes.
Can you play Sonar without an account?
Yes. You can try 4 rounds a day without an account. With an account you play as much as you like.
Can you play Sonar on a phone?
Yes. The game runs in the browser on phones, tablets and computers. There is nothing to download.
Does it cost anything to play Sonar here?
No. Spelbordet is free during the beta and has no ads.