After using all the restarts, I ended up in a bad situation. I reached level 115 and got to "GO" - guarding the treasure (a stall with upgraded vampires). I wandered around for 2 turns nearby because there was nothing else to do, and then I stood on 117, preparing to attack with upgraded birds, seeing the opponent's hero on the other side. He unexpectedly attacked the vampires, and they fortified themselves. GG
Thanks for the game!