Biết Tuốt - 2 Hình 1 Chữ is a free Android game developed by Niceteen Games, falling under the trivia subcategory. The game aims to test your intelligence and brainstorming skills by presenting you with a picture and asking you to guess the word related to it. The game requires you to understand the meaning of the picture to win, making it both scientific and interesting.

The game mechanics are simple. Firstly, the scanner gives you a thorough picture of the given image. Then, you need to guess the letters to match the correct word. Finally, you need to guess the exact word to earn 5 gold coins and proceed through the difficulties. If you find the question too difficult, there are options to open a letter or the first/second word of the answer. You can also change the question if needed.