Which car has the right of way? Even the most experienced drivers get lost.

The rule: According to the directions, it is assumed that the priority road has been reached.
Why is this confusing? However, this rule applies to drivers who consider a road a "main road" because it concerns the direction of the priority road and the safety of warning signs. An accident and collision can be expected if a driver on the main road fails to yield to the path of an approaching vehicle from a side road.
Solution: Strictly follow the right-of-way rules as indicated. Ignore a road that is a main road but not explicitly marked with priority signs.
The final solution for the entire situation:
In this situation, the situation is correct; it is best to assume that there is no priority and not to enter the priority road.