Spectre Mind: Collect Block is a fun free-to-play game for improving your logical thinking skills. You're given some empty space and several colored blocks. Arrange the blocks in such a way that all the blocks are used and there is no empty space left.

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 logical thinking skills will improve and the game will become increasingly easier for you. If at the highest difficulty level you feel that the game has become quite easy for you and you can play it honestly all the way to the end, then accept our sincere congratulations, because it means that you have achieved incredible results in your logical skill 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!

Make sure that third-party apps are allowed on your device: go to Menu->Settings->Security-> and check "Unknown Sources"

Tap the APK file. Allow the app any required permissions it asks for. Then, at the bottom of the installer window, click INSTALL.

You'll see a confirmation the app is installed. Now you'll see the app available in your list of installed apps.