How to stop annoying blunders?

One thing that I've noticed that is really bugging the hell out of me is that although I can be a very good chess player when I'm able to concentrate for a long game I make ridiculous blunders! It's starting to drive me insane, and I just don't know what to do. What drives me more insane is that I pretty much always spot the blunder 2 to 3 milliseconds after I let go of the piece. I have no idea what I can do to stop blundering: I know that it has nothing to do with my playing skill I just don't pay enough attention I suppose. Take this blitz game I just played in life chess for example... The action starts at about move 20.

You're not supposed to post the same thread twice, mate! 

 I know, it was some sort of glitch, I've already deleted the other one :p

What can I say, it happens. Just take your time and make sure your plans are well thought out.

KIESH2

If you play blitz chess you accept this type of mistake...it is really part of the game.  To improve your instincts for seeing this type of error before you make it you need to spend more time looking over the board which means longer time controls.

Well, it's not just blitz chess. These things happen in 25 minute games too.. I know "it happens" but it seems like it's happening to me more than normal. And Grakovsky, thanks for the advice, but that still doesn't explain things like 25. Qd7+ xD

i know what you mean about spotting it half a second after thats why even when i know what im about to do i just hold the piece for another second or two its usually pointless but it saves games sometimes

Ok, if happening in longer time frames that changes the approach to dealing with it.  Somewhere in evaluating your move you are omiting a key step or two that you probably normally do.  Obviously one of those is asking the question "Is this a clear blunder move?" but I dislike that step ever being used.  Instead I suggest asking what is your opponets two most likely responses.  (If a forcing move then only consider one.)  Often we have an idea as to what we *think* he will do.  ("I move here then he moves here then I get him with this move!)  By looking for a second move I often see my mistake.

Just a thought.  Perhaps it will help or lead you in a better direction.

I know players who, even starting out, never hang pieces. Skill helps, but a disciplined thought process is also sufficient. Eg, every move consider all CHECKS and CAPTURES for you and your opponent and you should never hang pieces again.

I notice that most of the time you're not seeing captures where your opponents piece has to move backwards. This is a big problem for me too. So maybe before you let go, ask yourself, "has black any captures from my point of view?" I.e. as if he were playing in your direction if you know what I mean?

I hope this makes sense. By the way, this was a very enjoyable game to go over as it was like a déjá vu for when I play OTB.

That problem -- of blunders -- has plagued me, too, a long, long time.  But I have finally been able to greatly reduce the number of blunders to almost none in the last few months.  Before I hit that sometimes dreaded "Submit" button, and have gone through my candidate moves, I look at each move my opponent can make: by simply visualizing first from my point of view and then second by looking at the board from my opponents point, by simply Flipping the board, using the "Flip Board" provision the program offers.  It's amazing, certainly for me, how often I see a blunder about to occurr and a blunder I can quickly prevent.

(I mean no offense and hope you take this commicical.)

but

What were trying to kill your oponent with no regards? Your mistakes are obvious unless it was a speed chess game. You lost it in the game, because you got carried away with checks and it caust you the game.

However, you did have a pro choice of moves somewhere in the game and with more practice you will fall subject to your problem less often..

I have the same problems.

It amazes me with time controls such as 3-5 days per move, players STILL blunder, like it was speed chess....

To kill blunders, we do it because, we rush, like=ilikethatmoveandiamgoingtomakeitnomatterwhat!

So if we learn to always, ALWAYS search for that 2nd, even 3rd, best move, ( and I know it's impossible to do with rapid and blitz games) we may, over time improve to eleminate the bigger to medium sized blunders.  The second half of the solution is, after we settle for the very best move, just ask yourself: hm if I was my opponent, what would I do?   This is what chess is about in a way, thinking ahead, but watch out, it can lead to paranoia!

My problem is I play online chess like timed chess.  I need to slow down more, but it's hard to do because I enjoy playing.

 "It's starting to drive me insane, and I just don't know what to do".

THINK LIKE A GRANDMASTER. 

Not that it has really anything to do with what Hydroxide considered his blunder, but I would like to point out another mistake (more like a missed opportunity): in that game, on the fifth move, you should have done 5. Nxe5 fxe5 6. Qh5+ g6 7. Qxe5+ and then you win a rook and a few pawns, plus  you expose his king a lot. Even if the opponent responds differently than what I wrote, you can still end up with a huge advantage.