In total I counted 221 battles and smaller combats. After disarming German garrisons and taking control of the interior of Provinz Posen, the fighting continued along the frontlines (northern, western and southern) and this is visible in this map:
https://i.imgur.com/kEhajjJ.png
https://i.imgur.com/iUp8gFN.png
https://i.imgur.com/ceRVuUQ.png
Documentary with English subtitles about the uprising:
https://www.youtube.com/watch?v=z6-poUU6Rac