Playing
The basics
Fraser selects an article from Wikipedia. He waits for you to send him a guess. He insists that your guess be a phrase with two or more words. If your phrase matches the article title (more on this later), he congratulates you and selects another article to frustrate you with. Otherwise, he looks through the article to find a sentence to somehow match your phrase. He shows you the sentence. Sort of.
The clue
When Fraser displays a sentence, he blanks out names and words if he feels they might be too strong a clue. To really confuse things, Fraser also replaces some words with your phrase. Fraser will show "(Exact match!)" before the sentence if your phrase matched something in the sentence exactly.
The article title
If your phrase is "close enough" to the title, Fraser might give it to you. What Fraser considers close enough is sometimes a little weird.
Next!
Move along, Fraser. Send 'I give up' to reveal the current article title.
Sharing
Friends can join the frustration! There is a "Share" button at the top right when you are in a Fraser chat session. It provides a URL that you can copy and share. If you are still playing the session (you haven't finished it yet), then your friends will be able to follow along.
If you tap on a message, you will find an option to "Share to here". Use this if you don't want to reveal the final clues or final answer to your friends.