Drop in on our Times Square Party at 12:31:25 PM (PST) on 12/31/25!

9... 8... 7... 6... 5... 4... 3... 2... 1...

Take one final second to appreciate 2025, the last square year for 91 years! More specifically, 2025 is:

(9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1)2

This is an online-only event.

Teams of 1-4 players are recommended, but there is no upper limit.
Create a team here!

Further information can be found in our Rules and FAQ.

To see our previous events, check out 123 123, Rubik’s Cube 50th, and P24 Films.

Puzzle interactivity courtesy of Puzzle.js.