"Best of the Best" Tournament

We were talking about zones 16, 17, and 18. It seems that each of them leads to 3 zones: to the treasury, to the opponent, and to the village (zone number 3). And not as shown on the map. Zones 4 and 17 are already connected on my map with a defense strength of 11. Mines are usually captured at the beginning of the 2nd week, often earlier. In my opinion, on Veteran difficulty, it doesn't slow down the game too much, but it was intended to slow it down a bit.