tkbctf 2026
tkbctf5 is a Jeopardy-style CTF organized by TPC, CTF team from the University of Tsukuba. It features a wide range of challenges spanning beginner to advanced levels across the following categories: Web, Crypto, Reversing, Pwn, and Misc.
Discord Server: https://discord.gg/e99hUyqXrT
https://tkbctf.info/
Web 7
| Challenge | Has |
|---|---|
| Capture_The_F__l__a__g | files |
| Capture_The_F__l__a__g_Revenge | files |
| Dream_of_You | files |
| Greeting | files |
| Parallel_and_Buffet | files |
| Patisserie | files |
| Secure_Gate | files |
Pwn 7
| Challenge | Has |
|---|---|
| BSS_BOF | files |
| Hungry_Goats | files |
| KBO | files |
| PyFSB | files |
| Stack_BOF | files |
| read_exact | files |
| verified_msg | files |
Reverse 6
| Challenge | Has |
|---|---|
| BINARY_IN_THE_FUTURE. | files |
| Classic | files |
| README.pdf | files |
| Red_and_Black | files |
| Simple_Crackme | files |
| Yajirin | files |
Crypto 7
| Challenge | Has |
|---|---|
| Double_Hint_RSA | files |
| El_Dorado | files |
| Expensive_Operator | files |
| Faulty_AES | files |
| Faulty_SHA | files |
| RANDOM_IN_THE_FUTURE. | files |
| Single_Hint_RSA | files |
Misc 5
| Challenge | Has |
|---|---|
| Fault_Tolerance_Py | files |
| Linear_DoS | files |
| Yet_Another_Injection_Challenge | files |
| javajail | files |
| psfuck | files |