The monthly Picross 3D is festive themed for December.

Christmas is only a month away and Nintendo are getting in the festive spirit. Every month they host a Picross 3D competition for the best puzzle that matches their monthly theme. The theme for December is "Winter and Snow".

To enter the competition you must create a puzzle that matches the theme. Then in the game's menu select 'My Picross' and connect to the Nintendo WFC. From here click on "contests" and submit it to the current contest.

The December competition closes on December 30th so you've still got some time left but don't forget the competition runs every month with a different theme. The winner from November's competition will be available to download on December 17th. For more information visit the official Nintendo website.