Game Types

Travis Coleman
Lesson by Travis Coleman
Magoosh Expert
Learn More About Magoosh LSAT
Hello everybody, in this lesson we're going to explore the different types of Logic Games in a bit more detail. You might recall from the previous lesson that there are three main types of Logic Games. The first of these is the Sequencing games, where we're asked to put things in order.

Here you'll see that historically, sequencing games have made up about 35% of all Logic Games. On the LSAT. So you'll almost certainly see one of these on your test. Next, we have the grouping games. There's two types, fixed and floating.

We'll talking about that later. But the important thing is to note that these also make up about 35% of all the games. So you'll almost certainly see one of these as well. Third, we have the matching games where we match one set of variables to another set. And you'll notice that these only make up about 5% of the game.

So there's a good chance you will not see one of these. In addition to the three main types, we also have two common hybrids. The first of these is the grouping and sequencing combo. These are usually close to 15% of the games on the test. So there is a good chance you'll see one of these. If not that you'll see a sequencing matching hybrid.

This is actually where we see more of the matching element come into play rather then in the pure matching games. These are about 10% of the games on the exam. In total, these five game types account for over 95% of all logic games. The remaining 2 to 3% are the rare game types, grouping/matching hybrid, mapping, swapping, etc.

Again, we will explore these in later lessons. But, for now, it's kind of enough to know that there's a great chance you're not gonna confront one of these at all on the LSAT. So let's talk about how to identify a sequencing game. Pause the video now, read through the setup and hit play when you're ready to continue.

Sequencing games have a few different characteristics that will help you identify them. First of all, they have one set of movable variables, here it's the names of the planes. It's possible you could have subsets of that type. So they could have told us there's three cargo planes and four passenger planes.

But they're going in the same slots and they're sort of interchangeable so we treat them as one set of variables. You'll also have one set of ordered slots, here it's the cargo gates. In this setup, they've given us the order, telling us that they're numbered chronologically. Sometimes, they'll just have a natural order, like days of the week or months of the year.

Lastly, we have a one to one ratio of variables to slots. There are seven planes and seven gates so it's nice and tidy. Next, let's talk about how to identify a grouping game. Pause the video, read the setup, hit play when you're ready to continue. In this situation, we have seven total racers and we're picking four of them for an upcoming race.

Grouping games have a lot in common with sequencing games. First of all, they also have one set of movable variables. In this situation that set is our group of five men and our two women. This is also a situation where we have subsets. They're all on the same team, they're all running the same race, we don't treat them as separate variable types.

So we're gonna call them subsets of the same variable type. They also have one set of bins into which those racers are gonna be placed. In this case it is a fairly common scenario where we have a selected bin and a not selected bin. There's usually only two or three bins in a game. It's rare that you'll have more than that.

The really important distinguishing feature of grouping games is that the order in which those bins occur doesn't matter. In that hardware store example from earlier, you might remember that there was an automotive, a construction, and a mechanical department. We don't care where those are located in the store. We just care which products go into them.

So, lack of order. Next, there's not a one to one ratio of variables to bins. Here we have seven racers and two bins. So we are going to have to place multiple racers into each bin. And this leads into the discussion about the different types of grouping games. The two main types are fixed games.

This that we are looking at right now is a fixed game. It has a known number of spaces per bin. They tell us there are four open spots, so that means there are gonna be four people in the selected bin, three people in the unselected bin. The other type of game is the floating game. In a floating game we don't know how many people are going to be selected or how many variables into each of the bins.

If you remember from the first page, fixed games are about 5% of LSAT's logic games and floating games are about 30%. So there's a much better chance you're gonna get a floating game on your test than a fixed game. Now let's talk about how to identify a matching game. Pause the video, read the set up, hit play when you're ready.

Matching games are unique because they have two sets of movable variables. Here we have shirts and pants. Those are not really interchangeable things and that's why we treat them as two separate sets. We also don't necessarily have any ordered spaces or bins to put them in. We do know that we're going to be purchasing four of them, but again we're not really assigning shirts to specific gift, or assigning pants to specific gift, we're just matching them up with each other.

We also do not necessarily have a one to one ratio between the sets of variables. Here, we have four shirt colors and five colors of pants. That means somebody is probably going to get left out. The most important thing to note about matching games is that you're going to be able to identify it because you're going to want to draw a table to set it up. In this case, we might want to draw a table with, excuse me, with our shirt types across the top, and I'm running out of space, so I'm just going to do the first two pant types going down the side.

These are our colors, right? And I'm going to create a table, and now what have are these boxes, each of which represents a pairing of a shirt and a pant color. So, if I'm able to say for sure that I know that our shopper buys an ochre shirt and fuchsia pants, I can put a check there. On the flip side, if I know he doesn't buy fuchsia shirt and fuchsia pants, I can put an x there.

So this possibility of drawing a table to nicely represent the task at hand is really the defining feature of a matching game more than anything else. So now that we've looked at the three major types, let's quickly talk about how to identify hybrids. The first type is the grouping and sequencing combo. In this type of game, the primary task will be to place variables into bins.

So you're grouping first. Then, within each bin, you're going to order the variables. Therefore, your diagram will be, bins containing ordered spaces. So it might look like something like this, oops, I keep having that window pop up, sorry about that. You might have, yes selected, no not selected, and in here we have the order in which people are selected.

Something simple like that. The second type of game is the sequencing and matching combo. Here, the main task will be to order variables. The secondary task will be to then pair those variables with a label from the second set of variables. Therefore you're diagram will be ordered and labeled spaces.

You'll have your main order, our planes landing at the gate and then your second set of labels might just be what airlines each of those planes is. Something like that. So these are the basic game types on logic games. You now have an idea of how to identify each one of them. And I've given you a few examples of how to set games up like this.

In the next lesson, we're gonna look at the question types in more detail. And then we're gonna actually start diving into each of the major game types and try some samples out. Thanks.

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