Step 1

This is what a basic vert stack looks like. Rather than kampong, there are large portions of space on the left and right of the stack, as well as deep, in which 3-7(cutters), can cut into to receive the disc.

Step 2

Keeping this in mind, the defense usually utilities a tactic known as a "force". This is where the mark on the disc, rather than trying to take away everything, takes away one side of the field(called the break side, because a thrower would have to "break" their mark to get the disc there, which is very difficult), leaving the other side open(known as the open side, cuz they're open throws). The defenders downfield mark their man on the side they are forcing, "forcing" the mark to throw there, making it more difficult for 3-7 to get free and giving them better positioning when trying to D the disc. (here we can see a forehand force)

Step 3

(if the downfield marks are wrong)

Step 4

the receiver can easily get open with his mark trailing.

Step 5

then ggwp ez throw

Step 6

(if the mark on the disc is wrong)

Step 7

literally any person in the stack can get open easily because all defenders are on the wrong side.

Step 8

then ezpz lemon squeezy

Step 9

we now move on to cutting(getting the disc) using the stack.

Step 10

at the most basic level, the last person in the stack cuts first. he cuts towards the handler in a move called an "in cut"(going in). notice that he does not go directly sideways, but at a angle both towards the sideline and to the mark, as it gives him the most distance and safest throw for the thrower.

Step 11

there are two reasons why the last person cuts first. first, he has more distance in which he can accelerate into or fake to try and beat his man, giving him more time and opportunities to get free.

Step 12

secondly, if the front of stack cuts first...(in this case 4)

Step 13

they may end up blocking off the throw to the back of the stack(7). if their mark is able to block them off, they also effectively block off 7(who may be free). (this is called double cutting)

Step 14

moving on from cutting, what to do if cannot get open. (this is called clearing)

Step 15

here, we can see that 7 is unable to get open.

Step 16

he has two options, the first, clearing back into the front of the stack, which allows the next person(6), to try and get open.

Step 17

the other option is to clear deep, offering a new option for his thrower, a huck deep. note that he has the positioning advantage, as by closing off the in cut, the defender is on the wrong side to defend if he goes deep.

Step 18

(this can happen if he clears deep)

Step 19

Congratulations! You have now learnt the theory behind the stack, go try it out! (its never as simple in practice)

Step 20

Step 21