The goal of the Puzzle:  In the best time change red squares to green (the last red square will automatically change to green). 

1. Start with clicking on the “Green Square” 

2. Several things have happened. The green square, which you have clicked on, has turned red and two other ones have turned in opposite directions – in this case, from red to the green one. Continue with clicking on the green square A3 (marked with a yellow arrow). 

3. Notice letters and numbers surrounding the puzzle. These letters and numbers make up for coordinates of squares (similar to chess). Each square turns two different squares exactly. In “Tutorial” and “Practice”, each square includes clues for easier playing as to which squares are going to be turned. Continue with clicking on the green square B2 (marked with a yellow arrow). 

4. Only a green square can be turned. In this “Tutorial”, you are guided in a way so that your completion of the task was the briefest. Outside “Tutorial”, however – in “Practice” and “Challenge” tabs – it is only up to you which green square you are going to turn. Continue with clicking on the B3 square. 

5. As has been already mentioned, the square which you click on will turn red under any circumstances. The squares, controlled by a square,on the other hand,  will turn in the opposite direction. That is, if the controlled square is red, it will turn green and the green one will turn red. Continue with clicking on the C2 square. 

6. An ideal turning is when you manage to turn two red squares into green ones. It is often enough to succeed in turning at least one square from red to green color. The worst case would be turning two green squares into red ones. Continue with clicking on the C1 square. 

7. Now you find yourself in a situation when it is not possible to turn two red squares into green ones and it is necessary to think over possible moves which would lead to solving the puzzle as quickly as possible. In this case, the fastest and the best solution is to swap the C2 and C3 squares. Therefore, click on the B1 square which is marked by “C2+C3” in the clue. 

8. You have achieved several good things with this clever move and you will need them to complete the puzzle. For one, you have succeeded in changing the C2 square from red to green color (in this way, it is possible to turn it again), and the same square can be used for turning two red squares B1 and C1. Also, the square B1 turns the C2 and C3 squares which will remain the last unturned ones. Continue with the C2 square. 

9. The situation is not always that easy and everything gets more and more complicated with the increasing number of fields. It can sometimes happen that you will block the puzzle because you don’t pay attention – you will turn the squares so unfortunately that none of these would stay green. This state is called “Epic Fail” and you can get out of it by clicking on the picture. You will automatically return to your last move. In “Tutorial” or “Practice” you may also return your moves by clicking on a curled arrow in the top left corner. Complete the puzzle by clicking on B1! 

10. CONGRATULATIONS! You have successfully completed “Tutorial”. The puzzle of the same layout may be solved in many various ways. Don’t hesitate and continue with “Practice” so that you reach the best times and defeat your opponents. :)