BTW, I really like the game idea, and would like to write my own version of the game. Game ideas are not protected, but I could also name it Spreads, if you don't mind, and add a link to your original game on my page, if you like. I think I can implement a much improved computer player. Would give you the source code for it, so that you can integrate it in your game as well.
Cool, thanks! I've started with the game: https://frank-buss.de/tmp/spreads/ The computer player is still very weak, it is a simple minimax search algorithm, but I found a developer at Upwork who says he can implement a better one. I think would be also fun to allow different board sizes, like 8x8, or 10x10.