Live now — ends 1 Dec 2026
Open Season
Every challenge on the board, one month, one leaderboard. First blood on each flag is worth +50 bonus points — squad up in /teams if you want the team crown.
Flags · 30
- Plaintext Loginfirst blood still open100 pts
- Binary Talkfirst blood still open100 pts
- Caesar's Day Offfirst blood still open100 pts
- Deleted, Not Gonefirst blood still open100 pts
- Cookie Jarfirst blood still open100 pts
- Certificate Trailfirst blood still open100 pts
- EXIF Whisperfirst blood still open100 pts
- Hex Marks the Spotfirst blood still open100 pts
- Morse Beaconfirst blood still open100 pts
- Gatekeeper.pyfirst blood still open100 pts
- Warmup: Not Encryptionfirst blood still open100 pts
- Warmup: Half a Caesarfirst blood still open100 pts
- History Never Forgetsfirst blood still open150 pts
- Needle in the Haystackfirst blood still open150 pts
- Trust Nothing Signed Badlyfirst blood still open150 pts
- Log Huntfirst blood still open150 pts
- Lookalikes Lurk in Unicodefirst blood still open150 pts
- Off by One Slashfirst blood still open200 pts
- Blind but Not Deaffirst blood still open200 pts
- Slow Leakfirst blood still open200 pts
- Headers Talk Toofirst blood still open200 pts
- Keygen.jsfirst blood still open200 pts
- History Never Forgetsfirst blood still open200 pts
- The Cloud's Worst Endpointfirst blood still open200 pts
- Vigenère Postcardfirst blood still open200 pts
- Known Prefixfirst blood still open200 pts
- XOR Layersfirst blood still open200 pts
- Bytecode Peekfirst blood still open300 pts
- Neighbourly Primesfirst blood still open300 pts
- Timing Oraclefirst blood still open300 pts
Solo standings
No scores yet. Sign in to plant the first flag.
Team standings sum every member's event score — solves before or after the window don't count.