AO Pentagram

This game is free, with no advertising and non intrusive.

It's an old puzzle, also known as Pentalpha, apparently very simple, but whose solution will only be easy if you can identify the logic hidden in this game.

In a pentagram, with 10 free positions, 9 coins must be placed, but to be able to place a coin in a position it is necessary that:
this position is empty, and
on the same line at two distance positions, there is an empty position.

Coins should be dragged to the destination position.

There are options for:
- reverse the previous movement of a coin,
- restart the game.