The coins placed in the playing area are the ones to be moved/removed.
The goal position which has to be reached is indicated in the right column - either as a respective image or as a text.
The type of moves allowed for respective challenge is indicated with the "Moves' type". The basic one is the "move" which means moving a coin by dragging it.
Usually there is a special restriction which accompanies the moves for the puzzle. The restriction is clearly indicated in the rules to the puzzle.
When all the conditions of the puzzle's rules are met in the process of the solving, the puzzle is considered to be solved successfully and the "Congratulations!" message appears.