There's a rope around the field, if the ball goes over it without hitting the ground (like a home run) it counts for 6. If if it did hit the ground it counts for 4.

They can run more than one (get to the other side, turn around, run back, etc) but the chance of the wicket you're running to being hit with the ball (so you're out) becomes larger so they usually manage 1, sometimes 2 or even 3. And both batters have to run the same amount.

If the number of runs is even, they end up on the same side as they started from.

> There's a rope around the field, if the ball goes over it without hitting the ground (like a home run) it counts for 6.

On the larger grounds, it tends to be a decently-sized foam triangular prism (covered in advertising, obvs.) rather than a plain rope which leads to "if it hits the triangle" rather than "goes over the rope" (I believe "hits the rope" also counts but is much harder to judge for obvious scale reasons.)

Also, IIRC, the ball can go over the boundary without hitting the ground but a fielder can knock it back inside for a catch to be performed to get the player out[0].

Sorry, I'm just making this more complicated for the baseballers, aren't I?

[0] If they comply with the changes around that last year - https://www.cricinfo.com/story/mcc-changes-rule-to-make-boun...