Very well-put and complete game. Amazing how much tactics can be involved in a seemingly simple 5x5 turn-based grid. You really nailed it! The only thing I miss is if I realize I messed something up, there is no admit defeat/reset option, but instead I have to keep playing until I lose, but that is a minor issue.
I have lost too much time playing this.
Oh, and I can totally understand what you wrote under "Lessons". This game has indeed a lot of amazing complexity. Great work!