There are 12 sections of train tracks and your aim is to construct each of the railways correctly. However, as you progress through the 40 multi-level puzzles, you will need to solve maths problems and use logical deduction in order to know what goes where. The best bit? Once you have completed the puzzles, the wind-up Tube train will go speeding around your solution.
Brain Train is one of 3 products within the Transport for London 'Underground' collection.