When I previously wrote about my new T20 match simulator, I concentrated more on what it could do than how it was built. This time, my aim is to ‘lift the hood’ and explain exactly how the engine is constructed and how it runs. Others can then start to judge for themselves whether it can indeed answer the many, varied questions that I claimed it can

I have tried to keep things simple so that anybody interested can understand how the model works. However, there are times when I use some technical language. If you don’t understand something (and you want to understand it), you can probably find the answer on Wikipedia, a Google search, or in a library