Lights Out
A puzzle that aims to turn off all the lights (lights out).
You can play 3x3 and 4x4 where the stage is random each time, and the challenge mode where the stage is fixed.
Description
Rules
Pressing a light flips itself and its top, bottom, left, and right lights together.
It becomes clear when all lights are turned off (lights out).

Light type
Light | Description |
---|---|
Yellow light | A light that is on. |
Gray light | A light that is off. |
Black light | A broken light. Does not light up. Appears only in challenge mode. |
Game mode
Mode | Description |
---|---|
3 x 3 | It is 3 x 3 where the stage is randomized each time. |
4 x 4 | It is 4 x 4 where the stage is randomized each time. |
CHALLENGE MODE |
There are 50 fixed stages in total. Let's aim to clear in a few steps. |
CLEAR SAVE DATA | Clear data such as step counts and clear counts. |
Method of operation
Mouse | |
---|---|
Operation | Description |
Left click |
Move the cursor or press the light. Click again at the cursor position to select that item. |
Right click |
Open the menu if it can be opened. Otherwise, it will be cancelled. |
Touch | |
Operation | Description |
Tap |
Move the cursor or press the light. Touch again at the cursor position to select that item. |
Long tap |
Open the menu if it can be opened. Otherwise, it will be cancelled. ※ Not available on iOS. |
Keyboard | |
Operation | Description |
Esc |
Open the menu if it can be opened. Otherwise, it will be cancelled. |
Enter | Select the item at the cursor position. |
↑ | Move the cursor up. |
→ | Move the cursor to the right. |
↓ | Move the cursor down. |
← | Move the cursor to the left. |
Related sites
Related games
News
-
2023/05/04Added "World Clock" to "Tool".
Displays the current local time in major cities around the world.
Daylight saving time display is also supported. -
2023/04/20Added "Click Counter" to "Tool".
A simple click counter that you can use when you want to count numbers quickly.
It can count negative numbers and create multiple counters. -
2023/04/06Added "Lights Out" to "Game".
A puzzle that aims to turn off all the lights (lights out).
You can play 3x3 and 4x4 where the stage is random each time, and the challenge mode where the stage is fixed. -
2023/03/30Added game "15 Puzzle".
15 puzzle, one of the famous sliding block puzzles.
You can play 8 puzzles and 15 puzzles where the stage is random each time, and the challenge mode where the stage is fixed. -
2023/03/08Added "Pencil" and "Colored pencil" to the background filter of the tool "Dummy Image Generator".
You can apply a filter that makes an image look like a pencil sketch.
Feedback
If you have any requests, please feel free to contact us. If you find any problems or bugs, it would be helpful if you could contact us.
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