Here are a series of intercept scenarios which have been duplicated from Tony Sale's Anoraks Corner on www.codesandciphers.co.uk. I have amended them mainly to make them match the instructions required for the new Virtual Colossus.

Each scenario firstly assumes that the wheel patterns have been worked out already and starts with the basic raw intercept. If you find you're having trouble, there is a hint file for the inital scenarios to get you going or if you're completely stuck - read the final full description giving the break in detail.

Start with this one.

This is a more challenging intercept.

This one might cause you some difficulties.

You're on your own with this one.

Can you complete this one?