tactics must be basic of chess i think.. Im not saying tactics more important than orhers but strong tactics like muscles that helps you anything what you do. so how to improve tactics?
Why not start with the answers people got the previous 50 times they asked this question?:
http://www.chess.com/forum/search?keyword=tactics
This is my take on it.
Spend less than 10 minutes per puzzle for sure. If you can't solve it in 10 minutes, you weren't going to find it in a game when there's no guarantee you were even going to be looking for it in the first place.
You can spend only a few seconds if you're sure you see the answer, but write down your answers, including any variations, before checking the solution.
Review puzzles you got wrong or found interesting. IMO a book makes this very easy. Beside each diagram you can make a mark for correct, incorrect, interesting, I almost got it, etc. Then at any time you can flip through the book and only do puzzles you got right, or wrong, etc.
The goal is to be exposed to, and learn, new patterns. Getting a puzzle right or wrong the first time doesn't really matter. The effort while solving, and then reviewing to get them into your memory, is what matters.
In my experience it can seem like it's not helping, but when I drill it into my head enough then I start to see opportunities in my games.
A very important idea in solving (and in your games) is falsification. When you see a move you like, it's time to find all the difficult opponent's moves. Try to really make your intended move look terrible.
If all you do is guess tactical looking moves, then you may do well enough on online sites with automated puzzles. But in a real game you have to see the whole solution before you play the first move, and you never play a sacrifice to guess. Treat the puzzles like real game positions when you solve.
tactics must be basic of chess i think.. Im not saying tactics more important than orhers but strong tactics like muscles that helps you anything what you do. so how to improve tactics?