TL;DR: Korean players name two foundational three-cushion patterns explicitly. 앞돌리기 (ap-dollligi, "around-the-front" / inside rotation) sends the cue ball the shorter way around the table, hitting the first object ball relatively early on a tighter inside path. 옆돌리기 (yeop-dollligi, "side" / outside rotation) takes the longer way around. Learn to read which one a layout calls for, and you have a decision framework that covers a huge fraction of real-game positions before you ever reach for a system.
Why these two patterns come first
If you watch a Korean coach teach a beginner, the very first thing they do is sort the table into directions. Long before anyone talks about the diamond system or a five-and-a-half count, the student learns to look at three balls and ask one question: do I go around the front, or do I go around the side? Those are 앞돌리기 and 옆돌리기, and they are not nicknames invented for this article — they are standard, everyday Korean billiard vocabulary that you will hear in any 당구장 (billiard hall) in Seoul.
The reason they are taught first is simple. The overwhelming majority of three-cushion positions resolve into one of these two rotations around the table. Once you can instantly classify a layout as "front" or "side," you have already chosen your line, your spin direction, and roughly your speed. The system math just fine-tunes a decision your eyes have already made. This page is the decision framework that sits underneath the geometric pages on around-the-table and diagonal shots — it tells you which family of shot you are even playing.
앞돌리기 (ap-dollligi): the inside / around-the-front pattern
앞 (ap) means "front." In 앞돌리기 the cue ball rotates around the table the short way, contacting the first object ball relatively early and then travelling on a tighter, more direct arc into the rails and to the second ball. Think of it as cutting across the front of the table rather than touring the long way around it.
Geometrically, the cue ball typically takes a first object ball that sits ahead of it and slightly to the side, drives toward the nearer short rail or the near long rail, and the path "folds" relatively quickly back toward the second object ball. Because the angle into the first ball is often thinner and the cue ball changes direction sooner, this pattern lives or dies on clean spin and a controlled, not-overly-hard stroke.
Typical english tendencies for 앞돌리(기): you usually want running english (the side that opens the angle off the rail) to help the ball turn the corner on the inside line. Speed is moderate — the inside path is shorter, so over-hitting flattens the angles and runs you past the second ball. Many players think of 앞돌리기 as the more "delicate" of the two, because small errors in tip placement show up fast on a short, tightly-curving line.
옆돌리기 (yeop-dollligi): the outside / side pattern
옆 (yeop) means "side." In 옆돌리기 the cue ball is sent the longer way around the table — it takes the first object ball on a fuller or wider line, travels out to a far rail, and tours through three cushions on a longer, sweeping path before arriving at the second ball. This is the "go around the side of the table" shot.
Because the path is longer, 옆돌리기 generally tolerates — and often requires — more pace. The cue ball has more rail to cover and more time for the spin to take effect, so the speed window is usually wider and more forgiving than on the inside pattern. Players often describe it as the more "powerful" or "athletic" of the two rotations.
The english is again typically running side to carry the ball through the long route, but the longer track means the spin has more distance to express itself, so the relationship between tip offset and final landing point is gentler and more linear. That predictability is exactly why 옆돌리기 is many players' default when a position genuinely allows either rotation.
Reading the layout: which pattern does the table want?
The single most useful skill here is classification before calculation. When you walk up to the table, look at where the first object ball sits relative to your cue ball and the rails, and ask whether the natural, low-risk route to the second ball wraps the front or the side.
- Lean 앞돌리기 (inside) when: the first object ball sits relatively close and ahead of the cue ball; the second ball is reachable on a shorter, tighter rotation; you can take a thinner contact and want to avoid sending the cue ball on a long, error-accumulating tour; or the balls are bunched such that the long route would risk a kiss.
- Lean 옆돌리기 (outside) when: the first object ball is positioned so a fuller contact naturally throws the cue ball toward a far rail; the second ball is across the table or down at the far end; you want the forgiveness of a longer track and a wider speed window; or the inside line would be cramped, blocked, or kiss-prone.
- Either could work when: the second ball sits in a neutral zone. Here most coaches default to 옆돌리기 for its larger margin, unless cue-ball position for the next shot argues for the tighter inside finish.
Notice that two of the deciding factors have nothing to do with making this particular point: kiss avoidance and next-ball position. A pattern that scores but leaves you nothing — or that risks the cue ball colliding with an object ball mid-route — is the wrong pattern even if the geometry is "easier." Choosing the rotation is as much about the kiss and the leave as it is about the angle.
Inside vs outside at a glance
| Aspect | 앞돌리기 — inside / around-the-front | 옆돌리기 — outside / side |
|---|---|---|
| Literal meaning | 앞 = "front"; rotate around the front | 옆 = "side"; rotate around the side |
| Cue-ball path | Shorter, tighter, folds back sooner | Longer, sweeping tour around the table |
| First-ball contact | Often earlier / thinner | Often fuller / wider |
| Typical english | Running side; precise tip placement critical | Running side; more linear, forgiving response |
| Speed tendency | Moderate; over-hitting flattens the angle | Firmer; wider, more forgiving speed window |
| Error sensitivity | Higher — short curve magnifies small mistakes | Lower — long track averages errors out |
| Best when | Balls bunched/close; tight line; kiss on long route | Second ball far; need margin; inside line blocked |
| Main risk | Thin-hit miscalc, running past the second ball | Picking up a kiss on the long route; needs room |
Treat this table as tendencies, not laws. The exact contact thickness, speed, and spin always depend on the specific positions of all three balls and the equipment — a fast new cloth and a heated table will shift every one of these numbers. The categories are reliable; the precise values are not transferable between rooms.
How the two patterns differ in practice
The clearest way to feel the difference is to set the same three balls and try to score both ways. On many layouts you genuinely can — and doing so trains your eye for the trade-off. The inside attempt will feel quicker and more nervous: the cue ball commits to its turn early, and you sense immediately whether the spin "took." The outside attempt feels more deliberate: you push the cue ball out to the far rail, watch it ride the long route, and the result resolves more slowly.
That slow resolution is the outside pattern's gift. A longer rail journey means a small error in contact or speed gets spread across more cushions, so the landing point drifts less per unit of mistake. The inside pattern offers no such cushion — literally and figuratively — which is why coaches drill it for stroke discipline. If your 앞돌리기 is reliable, your fundamentals are sound.
A practical caution on terminology: across regions and even between coaches, the precise boundary of what counts as "front" versus "side" can blur, and you will sometimes hear the same shot classified differently. The core distinction — shorter inside rotation versus longer outside rotation — is consistent and standard. Where a specific borderline layout falls is a judgment call, and honest coaches will tell you so rather than pretend there is one canonical answer.
Why mastering both covers most of the game
Three-cushion looks infinite, but the realistic, repeatable positions cluster heavily. A large share of real-game shots are some version of rotating the cue ball around the table to a far-ish second ball — and that rotation is, by definition, either the short way (front) or the long way (side). Add the related geometric families covered on the around-the-table and diagonal pages, and a player who truly owns 앞돌리기 and 옆돌리기 can attack the majority of positions they will ever face with a pre-formed plan.
This is why the patterns are taught as a pair and as a choice. The skill is not just executing each one; it is the instant decision of which to use, made before you chalk up. Build that decision habit and the systems you learn later stop being abstract math — they become a way to verify and refine a route your eyes have already chosen.
How to practice the inside/outside decision
- Classify out loud. Before every shot in practice, say "front" or "side." Forcing the verbal label builds the reflex faster than silent intuition.
- Play both on dual-option layouts. When a position allows either, attempt each and note which gave the better leave and the smaller kiss risk — not just which scored.
- Drill 앞돌리기 for discipline. Because the inside line punishes loose strokes, use it as a fundamentals test: if it is landing consistently, your tip placement and speed control are honest.
- Use 옆돌리기 to learn pace. The long route rewards committed speed; use it to calibrate how much the cloth and rails in your room actually give back.
- Always check the kiss first. For each candidate pattern, trace the cue ball's full path and confirm it does not collide with an object ball before scoring. The kiss often decides the pattern.
Key takeaways
- 앞돌리기 (ap-dollligi) = inside / around-the-front: a shorter, tighter rotation with earlier first-ball contact, moderate speed, and higher sensitivity to error.
- 옆돌리기 (yeop-dollligi) = outside / side: a longer, sweeping rotation with fuller contact, firmer pace, and a wider, more forgiving margin.
- These are standard Korean terms (앞 = front, 옆 = side) and are taught first because they classify most real positions.
- Choose the pattern by reading first-ball position, second-ball location, kiss risk, and the next-shot leave — then use systems to fine-tune the line you already chose.
- Treat the comparison values as tendencies; exact contact, speed, and spin depend on the specific layout and the equipment in your room.
- Owning both rotations, alongside around-the-table and diagonal shots, gives you a pre-formed plan for the majority of positions you will face.