user13829: As black, I like to return my dark square Bishop to the King after castling short. I want to develop my skills in defending that position. In what openings does it occur?
And how should one in general search for such a nameless(?) concept or strategy? Is there for example a database where one can search for Bf8 in the ten first moves?

user13817: Good defenses?
Against e4, well there are lines such as the sicilian hyperaccelerated dragon, the accelerated dragon, and the traditional dragon. There is also the modern 1...g6 which is usually okay, and also the pirc which is suboptimal. As for systems where the bishop retreats, you can commonly find that in the Breyer System (a line in the Ruy Lopez). In the breyer as well as other lines in the Ruy Lopez, Black plays Re8 followed by Bf8, g6, and Bg7.
If you want a solid defending position, then you should try the Breyer system. Look it up )). Just know that you may not reach it too often, but the way that Black plays into it is always 'good', if that makes sense. Otherwise try the pirc or the traditional dragon maybe, both are actually quite fun to defend. But objectively the Breyer is one of the best systems for black; it is extremely theoretically healthy.
Against d4, both the Grunfeld and King's Indian setups are good for what you're looking for. I play the Grunfeld by the way.
By the way, there is a line in the English (and also the larsens! 1. b3) where Black retreats the bishop to f8, but doesn't fianchetto via g6. 
It goes 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. 0-0 Be7 8. d3 0-0 9. a3 Re8! (preparing to guard e5) 10. b4 Bf8. I enjoy this position for Black too. 

user12449: The Ruy Lopez and the Philidor have variations with this move so the rook can put pressure on the e pawn.  Since the plan is to restrain and attack the e pawn, these maneuvers often become a fianchetto.
Chessbase does allow a search like this.  It also has a search for just some of the pieces, that is, you can place a king of g8 and a bishop on f8, and the program will search all games which has at least that configuration.  I'm sure that various free databases, such as SCID, chesspad, x/winboard, and arena, have this pattern search.

user7297: There are a lot of openings where Black fianchettos his king's bishop, and it ends up on g7. Versus 1. d4 you have the King's Indian Defense and the Grünfeld Defense; if White opens 1. e4 you can respond with the Pirc Defense. The Modern Defense is usable against both.
Without playing g6, Black has to move his rook on f8 (after castling short) and retreat the bishop to f8. That's far less common, though there are some (side)lines in the Sicilian and the Ruy Lopez where this happens.

13829: <p>As black, I like to return my dark square Bishop to the King after castling short. I want to develop my skills in defending that position. In what openings does it occur?</p>

<p>And how should one in general search for such a nameless(?) concept or strategy? Is there for example a database where one can search for Bf8 in the ten first moves?</p>
 13817: <p>Good defenses?</p>

<p>Against e4, well there are lines such as the sicilian hyperaccelerated dragon, the accelerated dragon, and the traditional dragon. There is also the modern 1...g6 which is usually okay, and also the pirc which is suboptimal. As for systems where the bishop retreats, you can commonly find that in the Breyer System (a line in the Ruy Lopez). In the breyer as well as other lines in the Ruy Lopez, Black plays Re8 followed by Bf8, g6, and Bg7.</p>

<p>If you want a solid defending position, then you should try the Breyer system. Look it up )). Just know that you may not reach it too often, but the way that Black plays into it is always 'good', if that makes sense. Otherwise try the pirc or the traditional dragon maybe, both are actually quite fun to defend. But objectively the Breyer is one of the best systems for black; it is extremely theoretically healthy.</p>

<p>Against d4, both the Grunfeld and King's Indian setups are good for what you're looking for. I play the Grunfeld by the way.</p>

<p>By the way, there is a line in the English (and also the larsens! 1. b3) where Black retreats the bishop to f8, but doesn't fianchetto via g6. </p>

<p>It goes 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. 0-0 Be7 8. d3 0-0 9. a3 Re8! (preparing to guard e5) 10. b4 Bf8. I enjoy this position for Black too. </p>
 12449: <p>The Ruy Lopez and the Philidor have variations with this move so the rook can put pressure on the e pawn.  Since the plan is to restrain and attack the e pawn, these maneuvers often become a fianchetto.</p>

<p>Chessbase does allow a search like this.  It also has a search for just some of the pieces, that is, you can place a king of g8 and a bishop on f8, and the program will search all games which has at least that configuration.  I'm sure that various free databases, such as SCID, chesspad, x/winboard, and arena, have this pattern search.</p>
 7297: <p>There are a lot of openings where Black <a href="https://en.wikipedia.org/wiki/Fianchetto" rel="noreferrer">fianchettos</a> his king's bishop, and it ends up on g7. Versus 1. d4 you have the <a href="https://en.wikipedia.org/wiki/King%27s_Indian_Defense" rel="noreferrer">King's Indian Defense</a> and the <a href="https://en.wikipedia.org/wiki/Gr%C3%BCnfeld_Defense" rel="noreferrer">Grünfeld Defense</a>; if White opens 1. e4 you can respond with the <a href="https://en.wikipedia.org/wiki/Pirc_Defence" rel="noreferrer">Pirc Defense</a>. The <a href="https://en.wikipedia.org/wiki/Modern_Defense" rel="noreferrer">Modern Defense</a> is usable against both.</p>

<p><em>Without</em> playing g6, Black has to move his rook on f8 (after castling short) and retreat the bishop to f8. That's far less common, though there are some (side)lines in the Sicilian and the Ruy Lopez where this happens.</p>
