The object is to swap the white knights for black ones and vice versa in 16 moves. Moving a knight one time counts as one move and alternating white and black knight moves is not required.
Please start with a1-b3, a1-c2, or b1-c3. All correct solutions can be rotated and/or reflected to start with one of these moves. I'll post the answer in about a week unless someone solves it.
