When there is no good pot, the best shot leaves your opponent nothing. This lesson covers what a good safety leaves, the break-off and why thickness is everything, a thin safety back behind a baulk colour, how exact the pace must be, why distance and cushions defend, the shot to nothing, soft safeties, and how to choose.

Series map. ★ Basics: 01 Cue action and elevation → 02 Aiming and potting → 03 Tip and power → 04 Where the white goes · ★★ Club: 05 Side spin → 06 Cut and side into pockets → 07 Cushions → 08 Doubles · ★★★ Advanced: 09 Escaping snookers → 10 Multi-ball shots → 11 Safety (this post) → 12 Position play · ★★★★ Hard: 13 Break-building → 14 Special shots · Reference: 15 Rules, tactics and practice · ★★★★★ Pro: 16 Cue-ball control.

Learning Outcome

  • Know what a good safety leaves: the white far away, on a cushion, or behind a colour.
  • Play a break-off, and miss on the thin side.
  • Play a thin safety back to baulk, and judge its pace.
  • Use distance and cushions as defence.
  • Pick between safety options by what your opponent has next.

Chapter 1 — The idea

1 · What a good safety leaves

Three small tables. 1: the white far from the reds. 2: the white close to a cushion. 3: the white hidden behind a colour, so no red can be hit directly

After a good safety your opponent has no easy pot, and the white is:

  1. far from the reds (a long shot has little room), or
  2. on a cushion (they must raise the cue and hit the top of the white), or
  3. behind a colour (a snooker: they cannot hit a red directly).

One of these is good. Two or three together is very good. You do not need a perfect snooker every time.

2 · Distance is defence

A diagram of the room for error in the aim at three distances, with the wedges drawn ten times wider so they show: 30 cm 2.20 degrees, 80 cm 0.72 degrees, 1.5 m 0.36 degrees

From post 02: the same pot from 30 cm has 2.20° of room, from 1.5 m only 0.36°. Every metre you put between the white and the reds makes your opponent's next shot much harder.

Chapter 2 — The break-off

3 · The break-off

Top view of the whole table at the start of a frame. The white starts in the D near the yellow. Its track goes up the table, just touches the end red of the back row of the pack, runs to the top cushion, off the side cushion, and back down to the baulk end, where it stops close to the cushion in a green ring. Only a few reds have moved

  1. White in the D, between the brown and the yellow.
  2. Aim to just clip the end red of the back row, on the outside.
  3. Power 4, a touch above centre.
  4. The white goes top cushion, side cushion, and back to the baulk end.
Clip from behind the baulk end: the white leaves the D, clips the end red of the pack, runs round off the top and side cushions and comes back past the yellow to the baulk end

Only 3 reds move more than 4 cm, and the white stops in baulk near the cushion ✓ (model).

Trick: pick a mark on the top cushion where the white should land, and watch that mark, not the red, as you play.

4 · Thickness is everything

Two top views after a break-off hit a little too thick. 1: too thick: the white hits two reds, 12 reds move, and the white stops loose in baulk. 2: a bit thick: the white still gets back to the baulk cushion, but 9 reds move

Hit White touches Reds moved White ends
just right the end red 3 baulk end, near the cushion ✓
a bit thick (2) the end red 9 baulk cushion, but reds everywhere ✗
too thick (1) two reds 12 loose in baulk ✗

"Just right" and "a bit thick" are only 0.8° apart at the white. Miss on the thin side: a fraction too thin may miss the red (a foul, 4 points), but too thick opens the reds for your opponent.

Chapter 3 — Safety in the frame

5 · Thin off a red, back behind a colour

Top view of the whole table. Six reds and the pink near the top end; one red on the bottom side cushion near the middle pocket. The white, near the middle of the table, clips that red thinly, comes off the cushion and runs back to baulk, past the left end, and stops behind the brown, in a green ring

The same idea as the break-off, later in the frame. The reds are up the table; one red sits on the side cushion.

  1. Clip that red thin: it moves only 1 cm and stays on the cushion.
  2. The white comes off the cushion, runs to the baulk cushion and back.
  3. It stops about 35 cm behind the brown.

From there no red can be hit at both edges (post 09): the colours are in the way. A full snooker.

6 · Pace makes the snooker

Three close top views of the baulk end after the same thin safety at three paces. 1: a touch soft: the white stops nearer the baulk cushion; a red dashed line shows a red it can still hit, cross. 2: right: the white stops behind the brown, tick. 3: a touch firm: the white stops above the brown, two red dashed lines show reds it can hit, cross

The same aim at different paces (model):

Pace The white ends Reds it can hit
a touch soft nearer the baulk cushion, off the line behind the brown 1 ✗
right behind the brown none ✓
a touch firm closer to the brown, but off to the side 2 ✗

The snooker works over about 6% of the pace, somewhere between power 2 and power 3. Even when it misses by a little, the white is still in baulk, far from the reds: a good safety, just not a snooker.

Trick: pick the stopping spot first ("a ball behind the brown"), then play the pace for that spot. The aim is the easy part.

7 · Leave the white on a cushion

Top view of four whites, each sent straight into the top cushion from 60 cm at power 2 with a different tip, shown by small faces. The yellow tracks show how far each comes back: top 117 cm, centre 56 cm, a little low 23 cm, low 8 cm

A white that dies on a cushion is hard to play from. Straight in with a low tip and soft pace, it comes back only 8 cm (post 07).

Two 3D views of the white touching the top cushion, cueing away from it. 1: from the side, the cue rising over the cushion and the rail, a wedge shows 12 degrees. 2: closer, the tip meets the white well above its centre; a face shows the tip spot near the top

Your opponent then has to raise the cue about 12°, and hit the top of the white: no screw, no stun (post 07).

8 · A soft touch is a shot too

Snooker has no cushion rule: after the white hits a ball on, nothing has to reach a cushion (unlike pool). So a soft safety is legal:

  • roll the white up to a red so it stops just behind it, or behind a colour next to it;
  • nudge a red a few centimetres off a pocket;
  • just touch a red in the pack and stay there.

A soft touch moves the fewest balls, so you know exactly what you leave.

Watch out: stopping touching a red is a special case (post 14). Your opponent may play away from it without hitting anything, which can be easy for them.

9 · The shot to nothing

A shot to nothing is a pot where the white goes somewhere safe whether it goes in or not (coaching advice):

  • you play the pot at a pace that also sends the white back to baulk;
  • if it goes in, you have a chance to build a break;
  • if it misses, your opponent still faces a long shot.

Before a long pot, ask: "if this misses, where are the red and the white?" In the model, a long red into a top corner missed by 0.6° ran all the way back to baulk, so check where the red ends, not just the white.

10 · Choosing a safety

Option When The idea
thin off a red, white to baulk the reds are up the table like the break-off: thin contact, the white runs back off the cushions
behind a colour a colour is near the line back a snooker (section 5)
white on a cushion a straight line into a cushion is open low tip, soft pace
put the red safe a loose red is near a pocket send it to a cushion away from the pockets, the white the other way
soft touch the reds are tight move as little as possible

For each option ask: "what does my opponent have next?" Choose the one that leaves the least, and the one you can play.

Try it at the table

Drill Set-up Look for
Break-off a full rack; the white between the brown and yellow back in baulk, three or fewer reds out
Thickness ladder the same, a hair fuller each time at which thickness the pack opens
Behind the brown a red on the side cushion near the middle pocket, the white mid-table the white stops behind the brown
Pace ladder the same, ten shots how many end in a full snooker
Dead on the cushion straight into a cushion from 60 cm, low tip, power 2 the white within 10 cm of the cushion
Soft touch the white 50 cm from a red stop within 5 cm, not touching

Cheat-sheet
Good safety far away · on a cushion · behind a colour
Distance 30 cm 2.20° of room, 1.5 m only 0.36°
Break-off thin on the end red, power 4, top → side → baulk
Thickness 0.8° fuller already opens 9 reds; miss thin
Snooker pick the stopping spot, then play the pace (about 6% of room)
Cushion low tip, soft: dies near the cushion
Soft touch legal; no cushion rule in snooker
Shot to nothing the white safe whether it goes in or not
Choose what does my opponent have next?

What's next

12 · Position play. Pot this ball and land the white in the right place for the next one.

References

  • WPBSA, Official Rules (2024-25): the opening stroke, snookered (Section 2 Rule 17), fouls and penalties. https://www.wpbsa.com/rules/
  • Dr. Dave Alciatore, safety play and the effect of hit thickness on cue ball direction. https://billiards.colostate.edu/
  • The break-off, the thin safety and its pace window come from the physics model with a tightly racked pack. How far reds move in a real break depends on the rack, and your pace window depends on your cloth; the trends are the same.

Note: this post is in progress. Planned additions: a roll-up snooker behind a colour, and putting a red safe on the top cushion.