Thank you very much for your feedbacks. It was really worth it.
I will try to explain what happened.
I tested this game with some friends of mine and they actually gave me similar feedback and found the game impossible to understand at first, but much fun once you understand it. Your feedback was very punctual and accurate, thank you. I'm going to remake this game on a platform with more space and use hexagons to give more fields, I really liked your idea. I had a lot of difficulty because it was my first game jam and I think I chose the wrong game for this format. But I'm learning a lot.