user21830: In the position at 14:28 of this video, why can't black just make the move f6? I wish to know as it was stated in the video that black will lose the other rook.
[FEN "2k3r1/ppp1qpPp/2n1b3/2b3B1/2ppN1P1/8/PPP2P1P/R2QR1K1 w - - 0 1"]


user2042: After f6 White takes with the bishop and Black loses a piece (bishop on c5 since d6 square is attacked by the white knight and f8 is attacked by the white pawn; no other piece is protecting the bishop).

21830: <p>In the position at 14:28 of <a href="https://youtu.be/DMcDNVSXyd0" rel="nofollow noreferrer">this</a> video, why can't black just make the move f6? I wish to know as it was stated in the video that black will lose the other rook.</p>

<pre><code>[FEN "2k3r1/ppp1qpPp/2n1b3/2b3B1/2ppN1P1/8/PPP2P1P/R2QR1K1 w - - 0 1"]
</code></pre>
 2042: <p>After <code>f6</code> White takes with the bishop and Black loses a piece (bishop on <code>c5</code> since <code>d6</code> square is attacked by the white knight and <code>f8</code> is attacked by the white pawn; no other piece is protecting the bishop).</p>
