Tap each road user in the order they may legally proceed. Get it wrong and you'll see exactly which California rule caused the crash.
Clear a level to unlock the next. Each one teaches a different right-of-way rule.
Two cars at a four-way stop. Who goes first?
Two cars reach the stop at the same moment. Yield to the right.
A pedestrian is in the crosswalk as a car approaches.
Three cars at a four-way stop. Combine arrival order and yielding right.
A car turning left faces oncoming traffic on a green light.
A car enters from a side road onto a through road.
An uncontrolled intersection with no signs or signals.
A bicycle and a car at a four-way stop.
A green left arrow for one car, a red light for the other.
An ambulance with lights and siren is approaching the stop.
The written DMV test asks “who goes first?” — but real driving asks you to read a whole intersection at once. Intersection drops you into the situation and makes you sequence every road user. When you misjudge it, you watch the collision and read the exact California Vehicle Code rule you broke. That's how the rule actually sticks.