In regards to the first post, 3. ...Nd4? is not really a trap since after 4. Nxe5! Qg5 5. Bxf7+!, White is winning. Only after Nxf7?? do we get this... Disaster.
For the puzzle at #26, there are two black bishops. While in theory one could come from a pawn promotion, I think it is unlikely. Its fine as a theoritical puzzle.