Brice

Results 2 issues of Brice

When executing the example Jigsaw in IPython.ipynb, the blocks don't show and a warning is issued: ![jigsaw_problem](https://user-images.githubusercontent.com/46918206/51908571-80a25900-23ca-11e9-85b1-2df01f3956b8.png) This happens when executing on my own server. I have also tried extracting...