Spectre Mind: Find The Sign is a fun free-to-play puzzle game for improving your attention. You're given an equation. The main task is to find the sign (addition, subtraction, division or multiplication) that will make it correct. Remember that you have limited time to make a decision. Answering correctly gives you more time. Making a mistake reduces your time. Since this brain teaser is intended not only for children, but also for adults, playing together can become an excellent opportunity for some family time. As you progress through the game, your attention will improve and the game will become increasingly easier for you. If you manage to earn more than 1,000,000 points and feel that the game has become quite easy for you, then accept our sincere congratulations because it means that you have achieved incredible results in your attention training and can move on to more challenging brain teasers. Spectre Mind is a series of free-to-play puzzle games aimed at brain training. Develop your logical skills, memory, and attention. By playing our brain teaser games, you train your brain and increase its power!