The level should not be displaying the coordinates under the mouse cursor. If it is, that’s strange.
If you come back to “earlier” levels with more programming knowledge, or higher level gear, and you find some fun way to beat a level differently, we’re ok with that 
So things like jumping the mines or summoning soldiers… we won’t try to stop that, so long as a player who is playing the game from the beginning will learn the concept in the intended way.
I did restrict it to basic melee heroes, though, because the level wasn’t working as intended with some ranged attacks available.
The idea of this level is to:
- learn about the dangers of attacking distant enemies
- practice using flags to move into range of enemies, to make some later levels like Siege of Stonehold less intimidating
There will be at least one more flag tactics level coming up soon 
About the name, mines are also known as “Fire Traps”.
Thanks for the feedback!