I think you should understand that a blocked mine is not a reason to restart on any map. There is no connection between restarts and mines at all.
Restarting due to a block is only given in cases where there is absolutely no way to leave the castle and you need to skip turns. If there is another way out through rough terrain, that's part of the gameplay. Restarts are for that.
Interesting, how would you then explain the phrase "develop to block"? What should be here?
Стримы и обучение тут:
https://www.youtube.com/channel/UCWlnXU5R5RLCMuWzIpBc65Q