You guys should google "Microsoft Solitaire Collection Events" cheats, codes and hacks. There are even videos on youtube for every single one of the games an today's event. Yep, there is definitely some cheating going on.
I don't doubt at all that there is cheating. And your response is correct in that there is "some cheating." My response was to the comment that 30 challenges could not be done in less than an hour without cheating. I have done it myself without cheating, though it is unusual, at least for me. And I am a good deal faster now than I was when I began playing the collections.
Doing them in less than a half hour (or even 10 minutes) is a totally different issue. As others have said, I have no interest in learning those techniques because it would ruin the game for me.
I also wanted to make the point that others made. Don't worry about cheats, have fun and do your best.