looks like it was helped by a human and helped too early at that. Waterfowl take a long time to hatch, try and allow them that time to get the job done on their own. All of that blood in the photo is a sign that baby was not really ready yet.
Let us know if the baby made it because yes, that egg had some human help and as stated by Celtic it was too soon. There should never be that bloody. That is a sign that the embryo has not finished absorbing the yolk and the blood vessels have not went into the gosling.
I know it is hard to keep the fingers out of helping but they need extra time to hatch we want to help but have to let them do this so they can absorb the blood and yolk sac.. Did you read The Guide of hatching geese eggs on here. If not you might want to go look it up.
Glad to hear the gosling made it... Sometimes if we help them too early it can kill the gosling. I know it is so hard for us to keep our finger's off because our motherly help comes out and it is so hard to not help them. But better to leave mother nature take her hand in it. Congrats on the gosling......