Midgame?

Since you only have 2 correspondance games here, and everything else is bullet/blitz, and 15 min or less, i dont kow what to tell you.  You can try posting some tournament games with your own analysis, and that should help.

If youre looking for a basic general idea...

Middle game:

When you have completed the Opening Principles, you are now at the middle game. Now you need to formulate a middle game plan. The middle game is a very complicated part of a chess game. A simple way to develop a middle game plan is to perform the following steps.

1. Scan your opponents 5^th, and 6^th ranks (3^rd, and 4^th if your black)

2. Look for weak pawns, and or weak squares.

• Weak pawns and squares are Pawns, and squares that cannot be defended by another Pawn.

• Knights are excellent pieces on weak squares.

• When deciding on weak squares, and weak Pawns to attack, the closer to the center the better

What am I looking for when I scan the opponent's rank?

Look for weak pawns, and or weak squares.

Weak pawns and squares are Pawns, and squares that cannot be defended by another Pawn.

Thank you Diakonia.

 OP has been deleted, so it's hard to give any answer. I guess "how to plan in the middlegame?"

Pawn structure gives a lot of clues. First of all think of the board as 2 or 3 separate sectors, queenside, kingside (and if it's not locked, the center). Ideally you seek an advantage where you have:

1) more space than your opponent in that sector (space gives greater maneuverability)
2) more pieces than your opponent in that sector (give greater force)

The basic mechanism of using those to get an advantage is:

1) open lines (pawn trades) for your pieces to use
2) infiltrate to their side of the board (this brings you closer to their weaknesses -- the squares their pawns can't defend like Diakonia said).

After that, tactics will appear for you so you can win material or checkmate.

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There are always exceptions in chess, and some situations are so complicated even the best players in the world (and engines too) screw it up, but that's the general idea if you're interested.

I suggest books like Pachman's Modern Chess Strategy and Soltis' Pawn Structure Chess.

Oh, and there are cases where there are no pawn breaks for either player for a long time and each side is just trying to improve their pieces, and other situations too where such a general outline wont work... but this is the basic idea if I were trying to answer "explain it to me like I'm 5" sort of question, where the asker just wants to get a general idea.

Thank you very much for your explanation 0110001101101000.