Hi just did mine a few weeks ago ...someone posted this image for me .....
it is 7.....VCC and GND are always common ( or can be) AFAIK
it is important to determine the type of magnets you have as it seems the Seller of these Boards is Shipping ANY magnet they have in stock , not the diametrically magnetised ones needed (best) as Barra just found out above and Penzija before that.