I always read the comments of a problem in tactics trainer right after I do the problem. Recently, I've noticed that several comments say things that only make sense if the two colors are switched in position (that is, if you're playing with the opposite color as the one you currently are).

For example: http://www.chess.com/tactics/server.html?id=116877

The top comment is "Once you realize that Black is poised to deliver mate, then it's clear that White must keep checking until Black is mated.", which isn't true unless it was the same exact position, except with the colors reversed. And I saw this in another comment for another problem, but it was that the notation was backwards and only made sense if the board was flipped.

So did the colors get switched in a lot of problems at some point? I don't really care, I'm just curious.

Anyone?