Tet Nguyen Dan or Tet is the most important and popular holiday and festival in Vietnam.
It is the Vietnamese New Year marking the arrival of spring based on the Lunar calendar, a lunisolar calendar.
We organize TetCTF to wish you all the best in new year!

And TetCTF 2023 cannot happen if we miss the hard work from our contributors and the sponsors. Please respect them.

Our Contributors

TetCTF 2023 was made by

⚔️ NDH ⚔️ Peter Nguyen ⚔️ BienPNN ⚔️ TsuG0d ⚔️ DucNT ⚔️ KhangHH ⚔️ Chung96VN ⚔️ Phieu Lang ⚔️ Tuong An ⚔️ N3mo ⚔️ jangtrachdan ⚔️ salonpas ⚔️
with ❤️

Our Sponsors

Your Flag

This is the Flag for challenge [MISC] Welcome