Puzzle Play Options

Mouse Button Functions
Different functions can be assigned to the left, right and middle mouse buttons. If your computer doesn't have right or middle mouse buttons, or if they don't work in your browser, you can use shift-click or control-click instead.

Left Button
Middle Button (Ctrl-Click)
Right Button (Shift-Click)

When cycling cell colors, skip colors for which enough cells have already been set.

Automatic Error Checking
Mark lines which violate the clue with red balls. This may be slow on large grids.

Extra Undoing After Check
When you choose to "undo to first" error after hitting the "Check" button, sometimes do a few extra undo's, so it isn't as obvious where the error was.

Tips
Show tips at the bottom of the puzzle solving page.

Dots:
How should white and unknown cells be distinguished on the screen?

Hover Text
When mouse is left over a clue number or cell for a seconds should some text be popped up describing what is there?

Hide Puzzle Title
Maximize the surprise factor by not displaying the puzzle title on the puzzle solving page until the puzzle is solved.