These are hints to the ouverture-facile game. If you need more help, a solution / walkthrough is available that explains the levels in full.

Levels [1-9][10-19][20-29][30-39] [40-49]

Level 40 - An underground level
- What is that image?
- It is the logo used for stations on the london underground
- Is there another image you could find?
- Look at underground.jpg
- Note that there is something else written on underground.jpg
- It says "ex : circle.jpg"
- What is circle in relation to the London underground?
- circle is the name of a line on the London Underground
- What are the other lines?
- other lines include Bakerloo, Central, District, East London, Hammersmith & City, Jubilee, Metropolitan, Northern, Piccadilly, Victoria, Waterloo & City
- There is an image for each line
- The clue says that its useful to go from point one to point two
- Find these points on the map
- Draw a line between them
- What does the line go through?
- There is only one station that it passes through
- That station is Oxford Circus
- What lines is that station on?
- There are 3 lines going through Oxford Circus, they are Bakerloo, Victoria and Central
- Combine these images and you'll read the answer

Level 41 - Clean up this mess!
- Move things around
- Move the man to reveal some text
- It is a letter substitution.
- What do you expect it to say when you clean it up?
- How about "The answer is ......."?
- After you substitute a few letters to get "The answer is ......." you should be able to see the answer

Level 42 - Relocation
- Look at the clue
- The clue says Ib->Dc, these are map references
- Look at the map and see where we're 'relocating' from and to
- It's a French puzzle, so its reasonable to presume that we're starting in France, not any of the other countries that are in Ib
- We're going to USA
- That's an odd URL
- What is a piece of computing equipment that is different in France and USA
- A keyboard is different in France than in USA
- What would ',qnga' on a french keyboard be written as if typed on a USA keyboard
- It would come out as mangq, so go to http://www.ouverture-facile.com/riddles/nox/sheep/chicken/mangq.html
- There is an error message so we're not quite right yet
- The error message refers to tree and stalk...
- Does mangq look like something from a tree
- A fruit

Level 43 - An eye for an eye
- Capture the image
- Brighten it up
- You should see 'left.jpg'
- Look at left.jpg
- What else might you look at? - Look at right.jpg
- This part is quite difficult, but you need to compare or combine the images
- You need to look at only those things that are different between the two images
- If you had an image editor that performed an XOR operation & you could align the images exactly you'd see the answer

Level 44 - Red
- You've done this before
- Look at the back of the cards
- Do the same thing you did for level 24
- queen of diamonds(5)=rachel=e
- queen of spades(6)=pallas=s
- king of clubs(2)=alexander=l
- jack of clubs(4)=lancelot=c
- queen of clubs(phone)=argine
- king of diamonds(4)=cesar=a
- queen of spades(1)=p
- queen of hearts(2)=u
- Note that difference attracts, sameness repells
- Break the letters down according to their colours
- red:ioeau
- blk:slcp
- There is one more red than black
- Try to spell something out
- Start with a red letter
- Two words
- You can spell 'usa police'
- Thave is a phone symbol
- What would you dial in USA to get the police?

Levels [1-9][10-19][20-29][30-39] [40-49]