1. [Some tactics with boats (not maps!)](https://hackmd.io/@OOOPS/SkQy1Hy0I "Some tactics with boats (not maps!)")
1. [Calais positioning](https://hackmd.io/@OOOPS/HJ9BiHyRL "Calais positioning")
1. [Calais positioning slides](https://hackmd.io/@OOOPS/rkNuMLJRL "Calais positioning slides")