1. It moves it into a position where it is pressuring another piece and likewise clearing a path for castling (should it be necessary) or moving out that rook.sirdanilot wrote:1. How?goatrevolt wrote:2. A better option is Bd2. It doesn't restrict our queen, (1)develops the other bishop, (2)threatens the b4 pawn, (3)and still allows us to castle, just via queenside. (4)Castling is also going to be more effective, since castling to the kingside would involve also having a bishop at e2, effectively keeping the rooks from getting into the game for a while.
2. That's pretty nice indeed, but ...a5 would stop that
3. So does Be2?
4. Not following about the rooks part.
2. a5 stops the pressure on b4, but opens alternatives.
3. Be2 does nothing. It may "develop" the bishop, but it puts no pressure on black and doesn't advance our position any. Bd2 is superior, because it forces black to react by defending their pawn on b4. Be2 on the other hand, allows black to gain tempo by making whatever kind of aggressive move they want.
4. The only file right now where our rooks would have any presence is the e file, which would be blocked off by Be2. I realize now, that this is a fairly moot point anyway, as Ne4 blocks that file regardless.