user31637: I'm trying to make a correct move but I can't find one.
When I move, I always get a warning message from chess.com.
[Event "?"]
[Site "?"]
[Date "12.29.2021"]
[Round "?"]
[White "Fmbalbuena"]
[Black "AI (600 ELO)"]
[Result "*"]
[SetUp "1"]
[FEN "2r1k3/p2np1b1/1qp1bnpr/1p1p1pN1/1P1P1P1P/N1P1P3/P2R2QR/2B1KB2 w - - 0 1"]

update from OPs comment: In the board, it's whites turn to play.

user4418: 
When I move, I always get Error of chess.com, Why?
Error means That i will lose, Not invalid move.

Nxe6 is winning. You take a piece for free and threaten another piece. Meanwhile black has no threats.
[FEN "2r1k3/p2np1b1/1qp1bnpr/1p1p1pN1/1P1P1P1P/N1P1P3/P2R2QR/2B1KB2 w - - 0 1"]

1. Nxe6


31637: <p>I'm trying to make a correct move but I can't find one.</p>
<p>When I move, I always get a warning message from chess.com.</p>
<pre><code>[Event &quot;?&quot;]
[Site &quot;?&quot;]
[Date &quot;12.29.2021&quot;]
[Round &quot;?&quot;]
[White &quot;Fmbalbuena&quot;]
[Black &quot;AI (600 ELO)&quot;]
[Result &quot;*&quot;]
[SetUp &quot;1&quot;]
[FEN &quot;2r1k3/p2np1b1/1qp1bnpr/1p1p1pN1/1P1P1P1P/N1P1P3/P2R2QR/2B1KB2 w - - 0 1&quot;]
</code></pre>
<p>update from OPs comment: In the board, it's whites turn to play.</p>
 4418: <blockquote>
<p>When I move, I always get Error of chess.com, Why?<br />
Error means That i will lose, Not invalid move.</p>
</blockquote>
<p>Nxe6 is winning. You take a piece for free and threaten another piece. Meanwhile black has no threats.</p>
<pre><code>[FEN &quot;2r1k3/p2np1b1/1qp1bnpr/1p1p1pN1/1P1P1P1P/N1P1P3/P2R2QR/2B1KB2 w - - 0 1&quot;]

1. Nxe6
</code></pre>
