A free program for Android, by otter games.

IQ Test: Raven Matrices is a logic game that will train your brain and test your intelligence.

The game is based on the idea of a brain teaser.

Each puzzle contains a number of clues.

If you are good at logic and have a good memory, you can figure out the answer.

The logic game is based on the idea that the brain is a logical organ and that intelligence is the ability to understand and solve logical problems.

The puzzles in the game are based on the difficulty of R. A. Fisher.

Each puzzle contains three clues.

You can see the answers in the puzzle.

Each clue is a number.