It was MineSweeper for the 6th MSFTCorpDojo today. We also applied the object calisthenics rules this time. We ended up with a lot of interesting discussions on how to design to follow the calisthenics rules and this lead us to not really driving the design using tests but rather to create tests following the design. In my opinion it was also unsatisfying that we only implemented the small building blocks we thought we needed and almost no part of the algorithm needed to solve the problem. After using object calisthenics a few times it feels like it leads to interesting design discussions at the expense of the basic TDD experience. It'll be interesting to see if we'll be able to get both in the next session.