diff --git a/subjects/fillit.en.md b/subjects/fillit.en.md
index d4b95760..54c54401 100644
--- a/subjects/fillit.en.md
+++ b/subjects/fillit.en.md
@@ -2,26 +2,22 @@
 
 ### Objectives
 
-Develop a program that receives only one parameter, a txt file which will contain a list of [**Tetrominos**](https://en.wikipedia.org/wiki/Tetromino) to assemble them in order to create the smallest square possible.
+Develop a program that receives only one argument, a txt file which will contain a list of [Tetrominoes](https://en.wikipedia.org/wiki/Tetromino) to assemble them in order to create the smallest square possible.
 
 ### Instructions
 
 All files referring to the project, must be in the same folder.
 
-The program must:
+The program must :
 
-- Be written in **GO**
-- Be compiled to be runned
-- Assemble all of the **Tetrominos** in order to create the smallest square possible
-- Show an error if the input doesn't correspond to a classic **Tetromino** piece
-- Not allow the rotation of the **Tetrominos**
-- Organize the **Tetrominos** by their apparition order in the file
-- Identify each **Tetromino** in the solution, by assigning different charactes to different **Tetrominos**
-- Have at least 2 **Tetrominos** in the text file
+- Be written in Go
+- Compile successfully
+- Assemble all of the Tetrominoes in order to create the smallest square possible
+- Make the smallest square with the Tetrominoes
+- Identify each Tetromino in the solution, by assigning different letters to different Tetrominoes
+- Expect at least 2 tetrominoes in the text file
 
-Some notes:
-
-#### Example of a text File:
+#### Example of a text File
 
 ```console
 #...
@@ -35,7 +31,7 @@ Some notes:
 ..##
 ```
 
-- If it isn't possible to form a perfect square, the program should leave spaces between the **Tetrominos**. For example:
+- If it isn't possible to form a complete square, the program should leave spaces between the Tetrominoes. For example:
 
 ```console
 ABB.
@@ -44,17 +40,6 @@ A...
 A...
 ```
 
-
-
-- Among all the possible candidates for the smallest square, we only accpet the ones where **Tetrominos** is placed on their most upper-left position. In the example below, the program would choose option a).
-
-```console
-a) ABB.  b)A...  c)A...
-   ABB.    ABB.    A...   ...
-   A...    ABB.    ABB.
-   A...    A...    ABB.
-```
-
 ## Usage
 
 ```
@@ -106,4 +91,4 @@ A.FFGG$
 HHHDDG$
 .HDD.G$
 student@ubuntu:~/fill-it$
-```
\ No newline at end of file
+```