how to use chess strategy?
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you would first need to define what you mean by chess strategy. in my eyes strategical play is having a plan based on the weaknesses in the enemies position and playing for those weaknesses. often times you will need tactics to push these strategical plans through. so tactics and strategy are connected.
basically in order to play strategical chess you just need positional understanding and the knowledge how to make a plan.
lets take any random pawn structure that i can think off at the moment, for example the kingsindian pawn structure.
So this is the typical kingsindian main line pawn structure. lets look at it from both perspectives.
White:
white has a space advantage in the center and also on the queenside. the center is closed so the place where he should play is the queenside. the weak spot in the black structure is the c7 pawn. why? because the pawn chain starts from the c7 square. so if this pawn gets undermined the whole center may fall apart. now we have the target. but how to attack it? obviously you need the c file for it. how do you get the c file? by playing c4-c5 (after u prepared it) and then taking on d6. this gives white the c file and also a new target, the backward d6 pawn. white can now try to infultrate on the c file with rooks and placs knights on c4 and b5. thats basically the short version of how to play this kingsindian line with white.
black:
black has a space disadvantage on queenside and center. the weak spot or target he has is whites e4 pawn. if that falls apart whites center would be massively weakened. how to attack e4? well simply by pushing f5 with black. white will normally answer with f3 because he doesnt want his center to be undermined. after f3 black has a new target, the f3 pawn. it is the next defender of the pawn chain. which means black pushes his g pawn to g4. normally black will play f4 first and then push his h and g pawn and build a huge attack on the white king on the kingside. he can remove his king from the g file and put a rook there. the knights can also hop into the white kingside position. thats the general plan for black.

no brah why?its actually the only strategy black has in this position.here is how the main line goes:

I have not actually studied kingindian pawn structure but since you are saying it, I might actually try it once in a game.

im sorry for saying brah but this you can read in every chessbook and you will also find the answer on the internet. also you have to play through this endgame yourself on a board in order to understand it so it wouldnt make any sense if i show you one winning line in that endgame. pls ask some more specific questions that you can not google easiely... thanks
Hello my name is Brah Brahsen and I am giving free chess tips to everyone in this thread. i am no master and my fide rating is 789 so dont expect too much. you can ask every question about chess that you want. here a random game by me: