Racer Witch is a hand-drawn spot-the-difference puzzle with a difficulty rating of "5: hard", aimed primarily at adult puzzlers. There are SIX differences to find.
Provided as an interactive HTML5 element to embed into your website. It is fully responsive and suitable for mobiles and tablets. The "Win" panel can carry promotional material. Licence this puzzle with your own promotional elements for as little as £45/$60 or commission your own.