The natural: around the table

A natural sends the cue ball off the first object ball and around the table, cushion after adjacent cushion, with running english helping it all the way. It's the first shot to look for in any position, because it's the most predictable route there is.

What makes a natural

A textbook natural. The white takes about half of the red, then goes around the bottom, left and top cushions with running english to the yellow. The engine gives it 94%. Open this position in the trainer

Why it forgives errors

Three things work together. A natural is usually played with a half-ball hit, the thickness where the cue ball's direction changes least with small errors. Running english makes the rebounds consistent from one speed to the next. And going around the table, the route tends to end coming down a rail toward a corner, where the second ball is often a big ball.

Compare a route that changes direction against the spin, or crosses the table back and forth: every cushion with reverse english adds its own uncertainty, and the errors pile up.

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How to play it

In the trainer: naturals come up constantly, and the engine picks them whenever their odds are close to the best. Watch how often its first choice goes around the table.