A new online Christmas game, Chelsea Challenge, has been launched with fans asked to identify 60 Chelsea players, both past and present, who are cryptically represented on a special Stamford Bridge Christmas set.

By solving the clues, you will not only be in with a chance of winning great prizes but you can also tell your friends on Facebook and Twitter that you are the ultimate Chelsea fan.

Don't worry if it's too challenging at first. You can save your progress via social media which will allow you to start and pause the game at your leisure. Please do remember though that the respective prize draws all close on 24 December.

If you are really stuck then simply ask your friends and Twitter followers for help by using #ChelseaChallenge.

So, what are you waiting for? Start the challenge and see how far you can get.

>>Click on Chelsea Challenge to play now.