user32822: In this position in the Exchange Caro-Kann:
[FEN "r1bqkbnr/pp2pppp/2n5/3p4/3P4/2PB4/PP3PPP/RNBQK1NR b KQkq - 0 5"]

the computer suggests one of the continuations as:
[FEN ""]
1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 e6 7. Nf3 Bd6 8. O-O Nge7 9. Re1 O-O 10. Nbd2

However, the computer's top choice was to go 5... Nf6 instead of 5...Qc7, indicating that the knight on f6 isn't that bad on its own. This means that our position has something which needs the knight on e7.
Why does the black king's knight not go to f6 HERE?

user27380: IM Sielecki explains this in detail in his new course Keep it Simple 1. e4 2.0.
He checks all Black ideas and also covers a line like this. He explains that White gets an easy game when the knight is developed to f6, because Black deprives himself of the play he has to compensate for his bad bishop. Usually, Black would not voluntarily lock the bishop in that way with e6, here is what Sielecki writes about that:

Black locks in the c8-bishop, which is not in the spirit of the Caro-Kann, you might think.
However, in recent years this move has received some attention, as the setup involving ...Bd6 and ...Nge7 looks reasonable for Black. They have some control of the e5-square and might even play ...f6 at some point, stopping any ideas we may have about playing our knight to the attractive square e5.

Nf6 allows a strong knight outpost on e5, whereas when Black develops the knight to e7, f6 is always an option to smoke the knight out. The other idea of f6 is to prepare to get a big pawn center with e5 later.
Sielecki recommends White striking at the center with c4 against that.

32822: <p>In this position in the Exchange Caro-Kann:</p>
<pre><code>[FEN &quot;r1bqkbnr/pp2pppp/2n5/3p4/3P4/2PB4/PP3PPP/RNBQK1NR b KQkq - 0 5&quot;]
</code></pre>
<p>the computer suggests one of the continuations as:</p>
<pre><code>[FEN &quot;&quot;]
1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 e6 7. Nf3 Bd6 8. O-O Nge7 9. Re1 O-O 10. Nbd2
</code></pre>
<p>However, the computer's top choice was to go 5... Nf6 instead of 5...Qc7, indicating that the knight on f6 isn't that bad on its own. This means that our position has something which needs the knight on e7.</p>
<p><strong>Why does the black king's knight not go to f6 HERE?</strong></p>
 27380: <p>IM Sielecki explains this in detail in his new course <a href="https://www.chessable.com/keep-it-simple-1e4-20/course/135659/" rel="nofollow noreferrer">Keep it Simple 1. e4 2.0</a>.
He checks all Black ideas and also covers a line like this. He explains that White gets an easy game when the knight is developed to f6, because Black deprives himself of the play he has to compensate for his bad bishop. Usually, Black would not voluntarily lock the bishop in that way with e6, here is what Sielecki writes about that:</p>
<blockquote>
<p>Black locks in the c8-bishop, which is not in the spirit of the Caro-Kann, you might think.
However, in recent years this move has received some attention, as the setup involving ...Bd6 and ...Nge7 looks reasonable for Black. They have some control of the e5-square and might even play ...f6 at some point, stopping any ideas we may have about playing our knight to the attractive square e5.</p>
</blockquote>
<p>Nf6 allows a strong knight outpost on e5, whereas when Black develops the knight to e7, f6 is always an option to smoke the knight out. The other idea of f6 is to prepare to get a big pawn center with e5 later.
Sielecki recommends White striking at the center with c4 against that.</p>
