Masyu: How to play using Flash

Problem list Rules How to play

Start window of Masyu

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.


Dragging option

Put a check mark in the "Paint" button and the color of the cells you drag across will change.


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

In Masyu you only use the left mouse button when dragging (press left button and drag). This may seem strange at first but when you get used to it, it will feel quite comfortable.

Drawing lines

You draw lines by dragging across cells (from cell to cell).

You can make turns without releasing the mouse button.


Deleting lines

When you drag across lines already there the lines are deleted.


Dragging mouse

You draw or delete lines by dragging across the cells. When you have made a mistake, drag across it and the line is deleted.


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 + Click

When you click the left button of the mouse pressing the "Shift key," you will put an "x". When you draw a line across an "x" it is deleted. To delete several "x"-es drag across them pressing the "Shift Key."

Put "x" by pressing the "Shift Key" and click. When you draw lines on "x" it is deleted.

To delete several "x" drag across them pressing the "Shift Key."


How to use Try-mode

Check button

When you want to draw a line 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.