user17004: We have now GPUs, Quad-cores, i7s, i5s, i3s, and so on. However, I am wondering what is the best chess engine for 1 CPU. ChessBase offers Fritz 11 for free. Fritz 11 works very well with 1 CPU. Also, Stockfish has many versions, which one is the best for 1 CPU? Same question for Komodo. Komodo 12 is free, but what is the best Komodo for 1 CPU?
I tried Stockfish 14.1 and put my computer in trouble, even though is a new desktop, but with a Celeron processor. (Intel(R) Celeron(R) J4105 CPU @ 1.50GHz). It is impossible to analyze in my computer with Stockfish 14 because the computer freezes. I tried to use Stockfish 9 and Stockfish 10 but I did not find them in the Stockfish website. I only found Stockfish 14.
Update 12/24
I installed the last free version of Komodo (Komodo 12), and it is running without freezing my computer. I can analyze with this engine without problems. The same with Fritz 11. However, Stockfish 14 freezes my computer.
I am running the chess engines over the free GUI ChessBase Reader 17. You can find it in the following link:
https://en.chessbase.com/post/chessbase-reader-2017
You can download the free version of Komodo from the website: https://komodochess.com/
Update 12/25/2021
I found the old versions of Stockfish!

Go to https://stockfishchess.org/download/
Other Versions (At the end of the page)
Old (archived) releases of Stockfish



user15223: Stockfish is the unchallenged best CPU engine right now (it's most probably the best engine, period, as well). This applies regardless of the hardware you have, as long as it's a fair comparison - i.e. you run all your competing CPU engines on the same hardware.
Choose the latest version of Stockfish, or if you prefer, choose the latest stable release (v14.1).

17004: <p>We have now GPUs, Quad-cores, i7s, i5s, i3s, and so on. However, I am wondering what is the best chess engine for 1 CPU. ChessBase offers Fritz 11 for free. Fritz 11 works very well with 1 CPU. Also, Stockfish has many versions, which one is the best for 1 CPU? Same question for Komodo. Komodo 12 is free, but what is the best Komodo for 1 CPU?</p>
<p>I tried Stockfish 14.1 and put my computer in trouble, even though is a new desktop, but with a Celeron processor. (Intel(R) Celeron(R) J4105 CPU @ 1.50GHz). It is impossible to analyze in my computer with Stockfish 14 because the computer freezes. I tried to use Stockfish 9 and Stockfish 10 but I did not find them in the Stockfish website. I only found Stockfish 14.</p>
<p><em><strong>Update 12/24</strong></em></p>
<p>I installed the last free version of Komodo (Komodo 12), and it is running without freezing my computer. I can analyze with this engine without problems. The same with Fritz 11. However, Stockfish 14 freezes my computer.</p>
<p>I am running the chess engines over the free GUI ChessBase Reader 17. You can find it in the following link:</p>
<p><a href="https://en.chessbase.com/post/chessbase-reader-2017" rel="nofollow noreferrer">https://en.chessbase.com/post/chessbase-reader-2017</a></p>
<p>You can download the free version of Komodo from the website: <a href="https://komodochess.com/" rel="nofollow noreferrer">https://komodochess.com/</a></p>
<p><em><strong>Update 12/25/2021</strong></em></p>
<p>I found the old versions of Stockfish!</p>
<ol>
<li>Go to <a href="https://stockfishchess.org/download/" rel="nofollow noreferrer">https://stockfishchess.org/download/</a></li>
<li>Other Versions (At the end of the page)</li>
<li>Old (archived) releases of Stockfish</li>
</ol>
<p><a href="https://i.stack.imgur.com/hknNJ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hknNJ.jpg" alt="Fritz 1 CPU" /></a></p>
 15223: <p>Stockfish is the unchallenged best CPU engine right now (it's most probably the best engine, period, as well). This applies regardless of the hardware you have, as long as it's a fair comparison - i.e. you run all your competing CPU engines on the same hardware.</p>
<p>Choose the <a href="https://abrok.eu/stockfish/" rel="noreferrer">latest version</a> of Stockfish, or if you prefer, choose the latest stable release (<a href="https://stockfishchess.org/download/" rel="noreferrer">v14.1</a>).</p>
