Ever played with model trains with your kids, or by youself, and wondered how to setup the tracks to make use of the pieces you have?

TrainBuilder will help you with that, just tell it how many pieces you have of each type and it will calulcate all the possible closed loops you can use.

This is a complex problem, so try to play with the numbers and increase them one at a time, otherwise you might be waiting for an answer for the next week!

System Requirements:

.NET 3.5