There is a thread on the main forum about the importance of 3-rail shots to escape snookers in 9-ball. Yet I've noticed that in snooker 2 rail escapes tend to be used more. Can anyone explain why that would be?
Without diamonds on the cushions I find it easier to judge using 2 than 1, to cannon an arbitrary ball on the table. Don't know if there's actually a physics reason for it though. You do want to be mindful that a full contact might move the object ball towards a pocket, rather than a safe spot.
Now if snookered behind a baulk color, pro's take a two cushion escape to clip the pack thin and the get cue ball back in baulk. Don't see how you can do that with 3 cushions.... see here: (
Rolling into the pack of reds from the side (one cushion) or from the top cushion (black side) just depends on the spread and not leaving anything for your opponent, so that really depends on the situation.
Barry answers the why in the comments of that video:
"Once you have the experience it is generally easier to come off two cushions than it is one because the right angle of the table corners enables the player to visualise the escape better. Visualising the two parallel lines is easy because they are in the line of sight for the player but a one cushion escape is generally not."