I am an Android software engineer and have developed a logic/word game that needs testing to determine if it’s too hard/too easy. So I decided to have a contest: whoever can beat the app at the Expert level of play wins 10 euros. Here are the requirements for the contest:

1. Contestants must have access to a phone or tablet running Android version 4.4.2 or later
2. You must have a Gmail account (this is a Google requirement, in order to be able to test pre-release software).
3. Testers must be able to read English, French, German or Spanish in order to play the game and your Android device must be set to one of these four locales in order to download the app.
4. In order to get paid, you must send us screenshots of your win (the trophy image) and all your moves (just click the Dismiss button).