Why are chess puzzles so frequently incorrect?

Eh, it would be prudent to not quickly judge a puzzle to be incorrect, and use some engine analysis, no matter what level you're on but yes we should all be patient.

Here is the consequence of moving black queen to h1 as blindly asserted earlier in this thread.

The engine in my chess program also made the blundering move of Qh1, which left me wondering if some chess puzzle developers also rely on engines for the "solution."

Not saying I could outplay SOS v5.1 in Arena but on my PC it also erroneously deemed a hanging piece could deliver an effective check and unwittingly set up white to deliver mate in the next move (assuming white is also playing to win). Nothing is perfect: occasionally even a mediocre football team will "upset" a top team, and occasionally a class B chess player may a win a game against a champion.

BTW, if seeking clarification is trolling then what shall we label those who have passed judgment on me without figuring out the real solution to this puzzle? If I misunderstood, I humbly apologize. I will gladly respond to any statements if proved incorrect in my understanding. Since my initial solution was incorrect, I am open to correction... but only correct correction. So far, nobody has shown a better one than black rook to b7, which arrests the imminent mate.

Ok, it's a troll post.  Nobody could be that oblivious.

btickler, did you even play the PGN I just posted?

^

After Kxh1, c1=Q+, then white plays Kg2, Qc6+, Kg1 Rb1+ followed by mate so 0-1

All possible moves for white can be refuted with mate

After White takes the Queen on h1 (which is forced), black can play c1=Q+, which forces Kh2 or Kg2. If Kh2, Black mates with Rxf2#. Therefore, the only logical continuation is Kg2. Black can then play Qc6+, forcing White to play either Kh2 or Kg1. Playing Kh2 results in Rxf2+ 6. Kg1 Qh2#. Playing Kg1 results in Rb1+ 6. Kh2 Qh1#. This puzzle is a tough mate in 6, but please listen to your own advice and look at what other people say and show. 

People are typing out the solutions beyond Qh1, which is not a blunder, even though it gives up the queen.  Make sure you play out the entire string of forced moves and not just the next one.

Go finish your homework and help your mom do the dishes you freak.

Reported for obvious trolling.

There's not much point in piling on with "freak" and stuff like that.  Recent events should remind people that there's no need for allowing people to stir you up.  He's a troll, and not worth anyone's time.

I haven't seen anyone suggest 2.Qg5#

^^^ Same troll or trolls in concert.

How [removed -- VP] dare you! I give ONE opinion on this [removed] site and am accused of being a troll or a sock puppet. [removed]

Well, He's only 400, so maybe he did really think that Qg5 was mate..

Joined this past month, names himself "AaaghCretin", reacts with mock outrage?  Unlikely.

The phrasing is also not very British, not that it matters much but it's just another indicator.

Multiple people have provided the correct answer, both before and after your post. Qh1+ leads to a forced mate by black.

OK, I reconstructed the puzzle on a physical board and followed the moves so kindly proffered. Instantly I was able to see what everybody was saying. I was wrong. Good grief! I hope I don't have a brain tumor. Maybe being nearly 77 has robbed me of what I could once do. Sigh! 

I thank the good folks who were patient and forgive those who could not tolerate imperfection.

For the future, I would suggest looking at the analysis tool if you don't understand why your solution to a problem is wrong or why the provided solution works.  Play through the provided solution, look at the engine's evaluations and the moves it suggests, and try your ideas to see how it responds.  This is something I do all the time when solving problems here, if I get the wrong answer and don't understand why.  99% of the time I missed something that's fairly easy to understand once the engine shows me a couple moves.

Freely available engines like Stockfish are stronger at chess than any human ever has been or probably ever will be, and while they're not perfect, they don't make blunders.  Even weaker ones would never give away a queen for nothing unless they were specifically handicapped to play poorly.  If the engine suggests sacrificing a queen for what appears to be nothing, the question it makes sense to ask is not "Why is the engine wrong too?" but "What happens next?"

DaMaGor, thanks for the kind advice.

To the tongue waggers, I say that your vitriole only advertises the sad fact that not all parents succeed in raising children.