What Is a Maximum Break in Snooker? The 147 Explained Step by Step

The Maximum Break: What It Actually Means

A maximum break in snooker, universally known as a “147”, is the highest possible score achievable in a single visit to the table. It requires a player to pot every single red ball with a black, followed by all six colours in sequence, without missing a single shot and without committing a foul. The number 147 is not arbitrary. It is the precise mathematical result of that specific sequence of pots, and understanding why takes only a moment of arithmetic.

There are 15 red balls on the table at the start of a frame. Each red is worth 1 point. A player who pots a red is then entitled to nominate and pot a colour. In a maximum break, that colour is always the black, worth 7 points. So each red-and-black combination contributes 8 points. Fifteen reds and fifteen blacks gives you 120 points. After the final red-and-black, the colours are then potted in their ascending order, yellow (2), green (3), brown (4), blue (5), pink (6), and black again (7), totalling a further 27 points. Add 120 and 27 together and you get 147. Every time, without exception.

The 147 is not just a high score. It is a perfect break, a flawless execution of the most demanding sequence in the sport. It demands potting ability, positional play, nerve, and consistency across 36 consecutive pots. Drop one shot anywhere in the sequence and the maximum is over.

The Setup: What Has to Be True Before You Start

A maximum break begins with the opening red. But several conditions must hold throughout the entire break for it to count as a legitimate 147.

First, all 15 reds must still be on the table. A 147 cannot be compiled if a red has already been potted or if one has been fouled off the table earlier in the frame. This is why you sometimes see a maximum break started very early in a frame, often on the first visit, or occasionally not at all, simply because a red was displaced by a foul stroke in the opening exchanges.

Second, no foul can be committed at any point during the break. A foul ends the visit immediately and the break total is reset to zero for that visit, the maximum attempt is finished the moment the cue ball drops into a pocket, strikes a wrong ball first, or any other infringement occurs.

Third, the cue ball must remain on the table throughout. An in-off (where the cue ball is potted) ends the break and constitutes a foul. This is particularly relevant when playing certain positional shots around the pink and black at the end of the break, where aggressive side can occasionally send the cue ball into unexpected paths.

There is no special start required. A player can begin a maximum from any position on the table, including from the D if they are playing from in-hand. What matters is what follows from the first pot.

The Red-and-Black Phase: Pots 1 Through 30

The first 30 pots of a maximum break follow a strict rhythm: red, black, red, black, repeated fifteen times. This sounds straightforward. It is anything but. The challenge is not simply potting the red, it is potting the red while simultaneously positioning the cue ball precisely on the black spot, or near enough to it that the black can be potted with confidence, and then repositioning again for the next red.

The black is spotted on the black spot, located 324mm from the top cushion (on a full-size 12-foot table). After each black is potted during the red-and-black phase, it is re-spotted on the black spot ready for the next visit. This means the player is always targeting the same black, in essentially the same position, fifteen times in a row, but the approach angles and cue ball paths required to get there vary enormously depending on where the next red is.

Good positional play during this phase means the player is thinking at least two shots ahead at all times. After potting a red, the priority is arriving at the black with a comfortable angle, not straight, since a straight pot on the black offers no cue ball movement off the cushion, making it hard to reach the next red. An angled approach to the black, ideally somewhere between 20 and 45 degrees off straight, allows the player to use top, bottom, or side to thread the cue ball back into the pack of reds, or to isolate a specific red that sits in a more accessible position.

The reds themselves are initially clustered in a triangle formation near the pink spot. As the break progresses and reds are removed, the remaining cluster thins out, and the positional game changes character. Early in the phase, the cue ball can be sent into the pack to split reds and create options. Later, with fewer reds available, precision becomes paramount, there is less margin for error when only three or four reds remain and they may be spread across the table in unpredictable positions.

Stun shots, screw shots, and top-spin runs are all in constant use during this phase. A common pattern is to pot a red with a slight angle and use stun-run through to travel up table toward the black, pot the black with right-hand side to bring the cue ball back off the side cushion and down into the remaining cluster. In practice, every visit to the black requires a slightly different solution, and players executing a 147 are making these calculations instinctively and flawlessly throughout.

The Colours Phase: Pots 31 Through 36

After the 15th red-and-black combination, the player has 120 points on the board. Now the six colours must be potted in ascending order: yellow, green, brown, blue, pink, black. Unlike the red-and-black phase, the colours are not re-spotted after being potted, they are gone. The table is rapidly clearing and the player must navigate precise positional routes from one colour to the next.

The yellow is spotted on the right-hand side of the brown-line (the baulk line) as you look from baulk. The green is on the left, and the brown is in the centre. The blue sits on the centre spot. The pink is spotted just below the top of the triangle position, and the black returns to its spot near the top cushion. Getting from brown to blue, and then from blue to pink, and then from pink to black, without losing position, is where many near-misses collapse.

The transition from pink to black is the most scrutinised in any maximum attempt. After potting the pink, the player needs the cue ball to settle in a position from which the black, worth 7 points and the final pot of the break, can be potted with comfort. Depending on the angle on the pink, a player might use a gentle stun to hold the cue ball in the middle of the table, or a controlled screw to bring it back toward the top cushion area. Leaving the cue ball too close to the black spot creates a very short, straight pot which, while seemingly easy, carries enormous pressure given the circumstances. Leaving it too far away demands a long pot under the most intense nervous conditions imaginable.

It is worth understanding that during the colours phase, the player is also under growing psychological pressure. At 120 or 130 points, an audience watching a live match will have fallen silent. The television commentators will be whispering. Every person in the venue knows what is happening. Blocking that out and continuing to execute technically sound shots, particularly the final pot on the black, is a mental accomplishment as significant as the physical one.

Common Mistakes That End Maximum Attempts

Most failed maximum attempts do not end on a missed pot. They end on a positional error that makes the next shot unplayable or forces a safety, which ends the break. Here are the most common failure points.

• Getting stuck on a red near the cushion, Reds that nestle against a cushion late in the break can leave no angle to play the black and then return to another red. Players sometimes have to accept a difficult escape rather than the clean black-and-position combination they need.
• Losing position after the blue, The route from blue to pink requires careful thought. Potting the blue while leaving the cue ball in a straight line to the pink gives no way to then reach the black comfortably.
• Playing the final black too casually, Nerves can cause a player to either rush the final black or decelerate through it. Both produce miscues or mis-hits. The stroke must be exactly as deliberate and rhythmic as every shot before it.
• In-offs on positional shots, Aggressive use of side or screw on positional shots can occasionally send the cue ball into a pocket. This is rare but has happened in professional frames, ending maximums at 140 or beyond.
• Mis-cuing, Usually caused by poor chalk application or a worn cue tip. If you are serious about your equipment, it is worth reading about choosing the right cue tip, even at amateur level, tip condition directly affects your control on demanding positional shots.

Famous 147s in Professional Snooker

The first officially recognised maximum break in professional competition was made by Kirk Stevens at the 1984 British Open, compiled in a distinctive white suit that made the moment visually iconic as well as historically significant. Before that, Cliff Thorburn had compiled the first televised 147 at the World Championship in 1983, a moment still celebrated as one of the sport’s landmark occasions.

Ronnie O’Sullivan holds the record for the most competitive maximum breaks, having compiled 15 at the time of writing, a figure so far beyond any other player that it stands as a statistical outlier. His most famous came at the 1997 World Championship in a time of 5 minutes and 20 seconds, still the fastest maximum ever compiled in professional competition. That break demonstrated not just potting ability but total command of positional play at pace, with barely any thought between shots.

Stephen Hendry, John Higgins, Mark Selby, and Judd Trump are among the other world-class players who have compiled maximums in professional competition, though the feat remains rare enough that each one is treated as a significant event. The 147 is so difficult that even the very best players in the world may compile only one or two in an entire career.

If you want to understand more about the players who have shaped the sport, the BilliardsBase player profiles section covers the careers of many of snooker’s most significant figures in detail.

Can You Practice Toward a Maximum Break?

You can, and you should, not because most players will ever compile a 147, but because the disciplines required to attempt one are precisely the disciplines that improve your overall game. Potting every red with a black is a drill in itself. Set up the full rack, pot a red, then pot the black, then return to the next red. Every time you lose position or fail to pot the black cleanly, note why. Was the angle wrong? Did you use too much or too little pace? Did you misjudge the side-spin effect?

Practising the colours sequence separately is also valuable. From a free cue ball position, attempt to pot yellow through to black in order, maintaining smooth positional routes between each colour. The blue-to-pink-to-black sequence deserves specific attention as a standalone drill.

Your equipment matters here. A poorly maintained table or low-quality balls will introduce unpredictable behaviour that corrupts your feedback. If you are setting up a practice environment, it is worth reviewing resources on quality snooker balls and suitable table specifications to make sure your practice conditions are as consistent as possible.

Mental practice matters too. When you are on a big break, even 50 or 60 in a club game, practice treating each shot with the same routine and rhythm. The habit of staying process-focused rather than score-focused is exactly what separates players who hold their composure during high-pressure moments from those who tighten up when the numbers get large.

Frequently Asked Questions

Is a 147 the highest possible score in a snooker frame?

Yes, in normal match play a 147 is the highest score achievable in a single break. However, it is technically possible to score more than 147 in a frame overall through penalty points awarded to your opponent, the total frame score can exceed 147 if fouls are committed. But no single uninterrupted break can exceed 147 points under standard rules.

What happens if a red is missing from the table when a player starts a maximum attempt?

If a red has already been potted or permanently removed from play before the break begins, the maximum is mathematically impossible, there are simply not enough points available. The break can still be a very high one, but it will not reach 147. For this reason, maximum breaks almost always begin very early in a frame, typically on the first visit to the table.

Do all 147s in professional snooker come with a prize?

Not automatically. Many tournaments offer a separate maximum break prize, but the value varies by event and is set by the tournament organiser. At the World Championship, a £147,000 maximum break prize has been offered in various editions. Some smaller events offer no bonus at all. The prize structure is determined independently of the rules of the sport and differs from tournament to tournament each season.