Check picturebox image?

Hi all!

I'm new here, this's my first post ever here.

I've got a question; I'm making a puzzle game and want to check if all puzzle pieces are in the right place; if they are, then the last piece would come on the last picturebox.

if ((pictureBox1.Image == Image.FromFile(@"2x2\1.jpg")) && (pictureBox2.Image == Image.FromFile(@"2x2\2.jpg")) && (pictureBox3.Image == Image.FromFile(@"2x2\3.jpg")))

pictureBox4.Image = img4;

But nothing happens. Please help me, I need to finish this by the end of this weekend.

Thanks