Challenge End Date EXTENDED - 11 January 2024!

The 2023 Codebreaker Challenge will now extend over the holiday season from the original end date of Thursday, 12/21/2023 to Thursday, 1/11/2024.

2023 Launch!

The 2023 Codebreaker Challenge launches Thursday, 9/28 at 1200 EST. You can register at the link at the top of the page!