No Blind Spots is a free daily logic puzzle on an office floor seen from above. Place security cameras on the floor squares. A camera sees along its row and its column until a wall stops it. Every floor square must be seen, two cameras must never see each other, and a number on a wall tells how many cameras stand right next to it. Monday is a floor of 6 by 6. Friday is 10 by 10 and often needs a step of “what if a camera stood here?”.
No sign-up and nothing to install. It runs in your browser on a computer or a phone, and your progress is saved on your device.
- One floor a day. Everyone gets the same walls and numbers.
- Exactly one answer. Every floor has one way to place the cameras, and you can reach it by reasoning.
- See what is covered. Squares that a camera sees turn yellow. White squares are blind spots.
- Stuck? The lightbulb takes away a wrong camera or places the next right one.
How to play No Blind Spots
- Tap a floor square to place a camera.
- Tap it again for a dot, your note for “no camera here”. Tap once more to clear the square.
- Make every floor square yellow without two cameras seeing each other.
- Match every number on the walls. When all rules are kept, the floor is done.
What you see
| Part | What it means |
|---|---|
| Yellow square | A camera sees this square. |
| White square | A blind spot. No camera sees it yet. |
| Dark square | A wall. It stops the view of a camera. |
| Number on a wall | How many cameras stand on the squares that share a side with it. It turns green when it matches and red when there are too many. |
| Red camera | This camera sees another camera. Take one away. |
| Gray dot | Your note: no camera here. |
Tips for faster solving
- Start at the full numbers. A 2 in a corner, or a 3 with only three floor squares around it, needs a camera on every side.
- Mark around zeros. No camera can stand next to a 0, so put dots on its sides first.
- Yellow squares are closed. A camera on a yellow square would see the camera that lights it. Only white squares can still take a camera.
- Find the only way to see a square. If a blind spot can be seen from just one open square, the camera goes there. Sometimes that is the blind spot itself.
- Ask “what if?” on hard days. Imagine a camera on a square. If it would leave another square that no camera can reach, or break a number, put a dot there.
How the week gets harder
| Day | Floor | Cameras | What it takes |
|---|---|---|---|
| Monday | 6 by 6 | About 8 | Many numbers, direct steps |
| Tuesday | 7 by 7 | About 9 | Direct steps |
| Wednesday | 8 by 8 | About 12 | Fewer numbers, direct steps |
| Thursday | 9 by 9 | About 15 | Often a “what if” step |
| Friday | 10 by 10 | About 17 | Usually a few “what if” steps |
Saturday plays like a Wednesday and Sunday like a Tuesday.
Frequently asked questions
Is No Blind Spots free?
Yes. There is no account, no download and no paywall.
Does a camera see diagonally?
No. It sees only along its row and its column, up to a wall or the edge of the floor. It also sees its own square.
Do the numbers count corners?
No. A number counts only the four squares that share a side with the wall.
Does every wall have a number?
No. A wall without a number can have any number of cameras next to it.
Is there always only one answer?
Yes. Every floor is checked so that exactly one set of cameras keeps all the rules.
What does the hint do?
It takes away a camera that cannot stay, or a dot that is in the way. If there is none, it places the next camera that follows from the rules.
Is there a time limit?
No. The clock only measures how long you took.
Is the floor the same for everyone?
Yes. The floor of the day is the same for all players, so you can compare your time with a coworker.
When does the new floor appear?
At midnight in your local time.
Can I play earlier days?
Yes. Open the calendar button at the top of the game and pick any day from the past eight weeks.
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