To see the picture you are trying to recreate hover over the top centre right hand button [of 3] which looks like a mountain range. You can look at this at any time.
Click on the FULL SCEEN MODE in the top right hand corner next to the ?
Click on the esc key to return to NORMAL MODE.
As soon as you click on the OK button the timing starts [if this is important].
It is often helpful if you can find the
corner pieces first and then the outside frame pieces which have flat edges. Once you have these in place
filling in the jigsaw may be a little easier.
To start the activity again just refresh the page. However, be aware that the pieces do not appear in the same places on the board.