A difficult jigsaw puzzle:

On about my 12th birthday I received a gift: a 1000 piece M&B jigsaw puzzle titled "Trout Fishing." This was some tough puzzle! Almost all the pieces were an impressionist mix of dark greens and browns. Nearly half the pieces had three almost straight edges plus one tab or bay. It took my whole family and many visitors six weeks to do this puzzle. So: how difficult was it? Let me put it this way: when there was just one piece left, that piece did not fit in the remaining space! We searched for five minutes to find the ever so slightly different piece that we had misfit elsewhere.