Visual Memory (com.oldenweb.VisualMemory) on Google Play
Remember squares and then open them.Number of squares in levels:1-10 levels - 16 squares. Must guess 4 squares.11-20 levels - 25 squares. Must guess 5 squares.21-30 levels - 36 squares. Must guess 6 squares.31-all next levels - 49 squares. Must guess 7 squares.