By Ken Brown BBC TV golf commentator

The 13th is the simplest looking short hole on the course, but it will provide all sorts of adventures.

It plays shorter than its yardage because it is quite a bit downhill.

The test comes on the green which slopes massively - and I mean massively.

If the ball lands past the flag then it is virtually unstoppable. If the ball lands short of the flag then a slow putt up the hill remains.

There is a chance of getting a birdie, but should the tee shot go slightly wrong then it is 'three-putt country'.

This hole cost Colin Montgomerie the US Open in 1996, when he hit his shot over the back of the green.