Canada Day 2017 was kind of a big deal in the nation’s capital. It was Canada’s 150th birthday celebration, and the Byward Market – right in the heart of Ottawa’s downtown core – was even busier than usual.

Guess who has their offices in the Byward Market? (Spoiler alert: it’s us). And we weren’t going to let our huge windows that face out onto a beautiful courtyard go to waste. So we did what anyone would do: we transformed them into a giant Tic Tac Toe board.

Our digital game was played by hundreds of people passing through on their way to grab coffee (or other beverages). Although the rain tried to dampen our parade, the games were still heated.

And to make this feat even cooler? We decided to submit it to the Guinness Book of World Records. There isn’t a record for the world’s largest Tic Tac Toe board. So, obviously, we had to submit ours.

While we wait to hear back from Guinness, enjoy these photos from #RebelXO round one. Round two is coming soon, so keep your eyes to the skies if you’re in the Byward Market!