The UK's largest CSI online jigsaw puzzle has just been launched on the CBS Drama website and is a must for fans of CSI: Crime Scene Investigation.

Turn over the puzzle pieces to gradually uncover the hidden image and you might find one of fifty bonus prizes. Guess the image correctly and you could win an LG 42" Full HD LED 3D TV complete with 3D Blu-Ray Home Cinema System.

Here's how to play: Every day you will be given 10 pieces of the puzzle to reveal. You could discover CSI: Crime Scene Investigation prizes hidden beneath, so the more pieces you uncover, the more chances you have of winning. Invite your friends in to share the fun and get bonus pieces when they join. Tune in to CSI: Crime Scene Investigation Series 3 (weeknights at 9pm) and jot down the 5 digit code that appears on screen. Enter the code any time before the next episode airs and you get an extra 50 puzzle pieces. The code will be valid for 24 hours from when the episode first airs.

Try to guess what the image is behind the puzzle by simply entering your answer as 2 words separated by a space and click 'Submit' to see if you're right! You can make one guess a day.

The first 50 people who guess the image correctly will be entered into the final prize draw to win an LG 42" Full HD LED 3D TV complete with 3D Blu-Ray Home Cinema System!

So get solving and don't forget to tune in every weekday at 9pm for CSI: Crime Scene Investigation.