Word Sandwich: Should be easy. Isn't.

How to play: The object is to guess the mystery five letter word. Your guesses will float to the top if they are too “high” alphabetically, and they will float to the bottom if they are too “low” alphabetically. (You can hit the enter key after each guess.) A bonus multiplier is applied to your score if you solve the word quickly. There are five words to guess in a game, and there are no proper words.

This game is extremely addictive and extremely frustrating.

Crop circle on Google Maps: A painterly scene of Scottish fields; zoom in to see the design.