Slitherlink: How to play using Flash

Problem list Rules How to play

Start window of Slitherlink

This shows the screen when you start a problem. The bottom-right timer starts when you open the problem.

This is the solving mode so you can start right away.

Generally use the left mouse button. Using the keyboard with the mouse makes operation smoother.


Change line width

Change the line width of the game grid here.


Your settings for these buttons will be saved to preserve your playing environment.

On some computer systems the settings may not be saved.


Zoom function

You can enlarge and move the game board with these buttons.


Play using the mouse

Clicking using left button

Click on the space between dots and the dots will become connected.

Clicking on a line will make the line change to an "x."

Clicking on an "x", the "x" disappears and the space becomes blank.


Clicking using left button

Clicking with the left mouse button changes the space between dots like to the left.

Draw several lines by dragging (move the mouse pressing the left button). Click on a line and drag, and you can put "x"-es continuously. Click on an "x" and drag to delete lines and "x"-es.


Clear button

When you want to start a puzzle again click the "Clear" button. The timer does not return to zero though. To reset the timer you have to close the problem and open it again.


The members page counts the number of times you open a puzzle.


Undo button

When you want to redo a step, click the "Undo" button. By clicking this button repeatedly you can return to the start.


Check button

After solving a problem, click the "Check" button. If your solution is correct the screen will say "Congratulations." If your solution is not correct it will indicate one point that is not correct, click the "Continue" button to continue to solve this puzzle.


Using the keyboard with the mouse

Shift + Left click

When you click the left button of the mouse pressing the "Shift key," lines and "x "-es will change in the opposite order.

You can also drag pressing the Shift-key. That way you can put "x"-es continuously, this is very convenient.


How to use Try-mode

Check button

When you want to draw a line or put an "x" temporarily thinking about the next step, use Try-mode. Click the "Try" button and the screen changes to Try-mode.

With the Try-mode, you can solve problems just like in the regular solving-mode. Your first action is indicated as brown and the following yellow.

Cancel trying button

Click the "Delete" button in Try-mode, if you want to delete your trial actions. All your trial actions disappear and the point of your first action is indicated by a yellow blinking dot.


Fix trying button

Click the "Fix" button in Try-mode if you want to set (make permanent) your trial actions. The color of all your trial actions are changed to black and you return to the solving-mode.