As everyone knows (…right?), in the real tic-tac-toe, two players take turns marking empty spaces in a 3x3 grid. The first player who places three respective marks in a row wins the game.
In Fic Tic-Tac-Toe, we have a 3x3 prompt-table instead of an empty grid. To mark a space, a player must write a fic with the prompt in the desired spot. The two authors take turns writing, and the first one to get three prompts in a horizontal, vertical or diagonal row wins the game.
Better together (or, why should I do this?).
So, why should you do this instead of signing up for your tenth prompt-table? Well, we all have one author whose writing we really enjoy. So why not bully that person into writing more by challenging her to a match?
No, really, the idea is that one author will motivate the other. First of all, the more fic you write, the more you get in return. Reciprocity system at its best. Then, the other author might beat you to the prompt you wanted, and you just might be pushed into writing outside your comfort zone. You also get an opportunity to show your mad logic skills along with your writing chops. Maybe you'll make new friends or get to know someone better. And if nothing else, it is a sure way to get more fic for that fandom or pairing you love, or from that author you adore. (It's fun, too!)
Alright, I'm convinced. Now what?
Now you need two things: someone to play against and a 3x3 prompt-table.
The first one is a piece of cake. You can invite a friend or a writer you admire to tackle the challenge with you. If there's no one you're comfortable asking, if none of your friends write for the fandom you're interested in, if everyone you know is busy at the moment, etc, you can request a match in this post.
The second one is even easier. The are a bunch of pre-set tables available to choose from here, or if none of them fit what you had in mind, that's okay, you can make your own table. Just make sure both players agree with the chosen table.
For more information on how to play, check out the Rules and FAQ.