I was a bit tilted, but then I pulled myself together. There were so many paths, it was hard to choose, but I was doing well in terms of resources and army (stables built, 2 hidden spots for archers) + artifacts for mana points. I made a controversial decision to rush the green Guardian through a one-way path on the opposite intersection. We all jumped there together. The strategy worked: I managed to catch the opponent at his intersection before he had anything substantial there.
Thanks for the game!