You can play this game inside this web page, or you can click here to play the game as a standalone web application. Both are ad free.
All your play data is stored in your web browser.
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Click on the easy or hard buttons to choose the difficulty level you would like to play.
Easy mode has more givens whereas hard mode requires more thinking to solve.
Alternatively you can click on "Print today's puzzle" to create a printable version of today's puzzle.
The help button explains how Check It puzzles work.
In the lower right corner of the welcome screen there are buttons to erase game progress, share the game on social media, developer info, or install the game on your device.
The game has a button for more games at the bottom and a language selector which is in the upper right corner.
You need to place three check marks in every row and column.
Checkmarks are never adjacent to each other, neighther horizontally or vertically.
Tip: place a red cross on the positions that cannot contain a check mark.
When you have completed the puzzle correctly it will say Congratulations over the top of it in red and white then show a white checkmark with you finish time on a blue circle. You can then choose to change the date to play other puzzles.
If you are uncertain if you are correct you can click on the "?" button as you make progress throughout the level to error check your work.
Each day this game offers another level to play through.
Your web browser automatically stores the amount of time it took you to complete each puzzle.
You can click on date to choose another date and play another puzzle.
The lower left side of the game offers buttons to pause the game, undo moves, error check your progress, control game music, contral game sounds, or switch between full screen or embedded play modes.