user8312: Taken from:
Chess Academy: A subtle blunder
[Title "White to move"]
[FEN "r1bqr1k1/pp1nbpp1/4pn1p/2pp4/2PP1B2/P1NBPN2/1P3PPP/R2Q1RK1 w - - 0 1"]

White can play Nb5 followed by Nc7 but wouldn't Black play Rf8 beforehand?

user1485: This is a familiar tactic I often get to use myself in another opening line. If black plays 1... Rf8, then comes 2. Bc7! Qe8 3. Nd6 Bxd6 4. Bxd6 and black loses the exchange anyway.
[Title "White to move"]
[FEN "r1bqr1k1/pp1nbpp1/4pn1p/2pp4/2PP1B2/P1NBPN2/1P3PPP/R2Q1RK1 w - - 0 1"]

1. Nb5 Rf8 2. Bc7! Qe8 3. Nd6 Bxd6 4. Bxd6

Chess is about patterns. Since I was familiar with the pattern, I spotted this tactic immediately.   

8312: <p>Taken from:</p>

<p><a href="https://www.chesscademy.com/exercises/a-subtle-blunder" rel="nofollow noreferrer">Chess Academy: A subtle blunder</a></p>

<pre><code>[Title "White to move"]
[FEN "r1bqr1k1/pp1nbpp1/4pn1p/2pp4/2PP1B2/P1NBPN2/1P3PPP/R2Q1RK1 w - - 0 1"]
</code></pre>

<p>White can play Nb5 followed by Nc7 but wouldn't Black play Rf8 beforehand?</p>
 1485: <p>This is a familiar tactic I often get to use myself in another opening line. If black plays <code>1... Rf8</code>, then comes <code>2. Bc7! Qe8 3. Nd6 Bxd6 4. Bxd6</code> and black loses the exchange anyway.</p>

<pre><code>[Title "White to move"]
[FEN "r1bqr1k1/pp1nbpp1/4pn1p/2pp4/2PP1B2/P1NBPN2/1P3PPP/R2Q1RK1 w - - 0 1"]

1. Nb5 Rf8 2. Bc7! Qe8 3. Nd6 Bxd6 4. Bxd6
</code></pre>

<p>Chess is about patterns. Since I was familiar with the pattern, I spotted this tactic immediately.   </p>
