How to stop being a patzer?

Hello. I can calculate very deep but sometimes i don't see very simple moves. Like recently i was crushing my opponent and i could win very easily but I made wrong decision because for some reason i didn't see a simple pawn capture.

I'm sure everyone whould have played here Rh7+ but not me. I played exd.  I was afraid of 1. Rh7+ Kg8 because i didn't see very simple Qg6+. I was very surprised after the game. Looks like tactics trainer doesn't help. I've solved over 7000 problems only here and I still blunder such simple moves. Btw i had enough time in that position.

I have reviewed enough Blitz games by other players on this site (I don't play Blitz myself, as I don't see any value in it to improve my game) to know that even high rated Blitz players still made mistakes and blunders. It's the nature of the beast. When you play that quickly you should not expect to play a perfect game or even a game without a few mistakes.

Tactics are very nice.

However, Have you studyed any mating patterns?

They are hugely different.

Frankly, I believe they are not the same at all in my mind.

I believe Mating patterns are 10 times harder to see than tactics.

If you have not looked at any mating patterns than I believe you are being way to hard on yourself.

Obviously your mating pattern level will not be the same as tactics level.

There is a nice article on mating patterns on Wikipedia:

"Checkmate patterns"; it shows about 32 of them.

Polgar's "Chess: 5334 Problems, Combination and Games" is also worth having, a few of the problems have some alternative solutions that are not acknowledged in the solutions at the back, but it is still a great resource. 

@Wilkes1949. Probably you didn't get my point. It's not about blitz, standard or correspondence. The tactic that i showed is very simple. In my opinion time control is irrelevant here. I had probably 3 minutes. It's huge time for that one. I just didn't see Qg6+ and i don't know why. I didn't see it even when my opponent allowed me to take on h7 by rook. Even after it i wanted to play Qe7 but he resigned and after couple minutes i saw Qxg6+.

@X_PLAYER_J_X.  I've solved probably thousands of mating puzzles. But again it's not about mating net but about simple Qxg6+. Sometimes i can stare at position 10-20 minutes and still don't see a simpe move like that.

I can assure you it's not about mating patterns at all. It's only about simple Qxg6. I just didn't see that i could take on g6 and protect my rook. Checkmate wasn't needed here.

Well than maybe you need more time?

If it takes you an hour than you use an hour until you see it.

No one is rushing you.

I have seen people who played 1 move every 1 year.

Doesn't matter what it takes. You find the best move.

I don't like spending a whole hour on moves like Qxg6.

Well why shouldn't you?

The position is mating.

If you find these moves the game is surely going to be over.

You have received (pretty good) advice from 3 different people who appear t be stronger than you yet you reject them out of hand as being wrong?

Are you looking for some "magical" advice that will make you a stronger player? It doesn't exist.

You state "I don't like spending a whole hour on moves like Qxg6." but if you don't like spending an hour on a move like that then you need to spend 1000+ hours studying/playing so that move is second nature to you. There is no "magic bullet" that gives you that skill, just time and practice.

I agree.

Do you really think long games will help me to see simple moves like Qxg6 better? It's not a combination but just one move.

What kind of advices? To spend a lot of time to see a simple capture? Yeah, great advice.

Try to figure out the lines until the end, and even though it looks like it doesn't work at first glance, it might do if you just look further. Okay I take on  h7, and if he goes to g8, he is no longer protecting g6, and Mate!

Why do you keep saying about short time controls? This simple capture doesn't have anything with time. I had plenty time in that game and in that position. It doesn't matter how much time i had, i just couldn't see this move. Like I had blackout.

I do not see what's the problem. This is classical example in blitz/bullet. It's lazy to calculate more options when you first see easy capture and no danger. That's all aout it. It happens to everyone. There is other thing. If you have played several games with your oponent and all finished in endgame, then you don't expect to end game in middle game. Also If you both have been making moves taking same time, there is "trap" that people fell for it. They just don't spent time becouse of the inertion that game has.

But you don't need to calculate till mate. To see Qxg6 is enough. One simple move.

You need an organized study.  Convekta has some good programs but optimization isn't that great.  There are many tactics programs but CT-ART 5.0 has CT-ART 4.0 with Beginner and Mating Nets.  Do beginner first, there are also packs you can buy that include things like simple defense.  Many of the programs (especially the easiest ones) will feel pointless but bear with them, they will develop your board vision, intuition, and speed.  Most of your time spent will be looking for your mouse cursor, especially if you go over a second!  

After that do intermediate tactics, which will take longer, and work up to CT-ART 4.0.  Calculation, board vision, and visualization must be worked.  You'll also want to obtain a good positional foundation too.  Understanding Pawn Play in Chess and My System should be good to start with.  Chess Strategy for Club Players is also good. 

Argumentative troll. Doesn't want advice, just wants to belittle people who are attemting to help.

But to add up, if you as you said have simular problem over and over again just stop playing chess for a week or month. Perfect time for that is now. When you reach simular position always first check for forcing moves/checks. Very strange 2000 at tactics, but 1300 blitz and 900 bullet. That is saying you have problem with time?