Blunders is missing your opponent's tactics... so try to see tactics from your opponent's side of the board.
how should i improve beyond 1050
(Copied from myself in a topic I replied in earlier)
The most important habit to form is the falsification of your candidate move. You have to look at all the forcing replies your opponent can play as a response that might immediately make your move a mistake. Forcing moves are checks, captures, and threats. Try not to lose even a single pawn.
Everyone looks for these moves sometimes, but you goal is to do it 100% of your times in 100% of your games. To better develop this habit you should play time controls that are long enough to give you a chance to do it.
I think so, yeah.
It's a hard habit to develop for sure, because it's easy to get caught up in the reasons we like a move, or not try very hard to find a reply for our opponent. But it will help a lot.
One way I like to think of it is, after imagining my intended move, I'll ask "what's the most annoying move my opponent can make?"

G30 is a good time control...
but the real question is, not so much time that you have- but how much time you are taking. are you burning through 30 moves in 10 mintues then clearly, you're playing too fast.
some people are Jumpy, and are very quick to snatch material, or grab an open file without seeing consequences.
on the other hand, I have met some people that move SO painfully slow that they literally forget important features of the position.
like for example, they see a distant bishop and have the brief though to keep an eye out for it, but after 3minutes of intense (I move here- and he moves there) they have forgetten ALL about it.
its also possible you Don't know your tactics well enough,and when there is a tactics puzzle and You KNOW that there is some clever move...
but in a real game you can't constantly look through every move for a tactic- no a tactic needs to leap out at you- or at least you need to see ENOUGH puzles so that its becomes more evident.

Old topic, but I run a novice night at my local chess club. Board vision, specifically:
1. Don't leave pieces en prise!
2. Lose pieces (unrprotected pieces) drop off
3. Examine every check and capture. (Easier said than done!)
Those three things will lift you from where you are to low level club chess, 1200-1300 or maybe a bit better. The results won't be instant but the idea (as I believe, anyway) is to reduce these errors gradually.
Another common mistake but one that's not as urgent as the first three points is concentrating on what you are doing and not what your opponent is doing. The enemy gets a vote, too, and always thinks his or her approach is valid.
Good luck.
My current standard rating is 1050. I want to get to1200 as there is going to be an open chess tournament in one month and a half. the problem is whenever I search websites for tips of improving they say practice tactics. but my tactics rating is 1300+(1314). I usually lose games due to blunders. how should I improve? my main weakness is blunders. please give me some useful tips.