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Up Topic The Rybka Lounge / Computer Chess / CCC: Stockfish 1 Thread vs. 250 Threads (or 2 x A100) !!?!
- - By MrKris (***) Date 2021-03-24 02:01
Stockfish is doing amazingly well, I think:

It of course lost to Dragon but came in ahead of Ethereal:
https://www.chess.com/computer-chess-championship#event=stockfish-one-thread-challenge

In progress little after the .jpeg below, Stockfish is only -2 to Lc0 in the II:
https://www.chess.com/computer-chess-championship#event=stockfish-one-thread-challenge-ii
Parent - - By sarona (*) Date 2021-03-24 03:14 Upvotes 1
You should have a look at the 25.5-24.5 victory for K_Dragon over Stockfish in the TCEC 20 FRC3 Final (+2 =47 -1). Komodo getting a win with Black in game 26 after the wheels fell off for Stockfish after 28. Qh6.

Always value your analysis of such games.
Parent - - By MrKris (***) Date 2021-03-25 05:21 Upvotes 1
Thanks! I missed that.

Stockfish might to better next time:

https://tcec-chess.com/#div=frc3f&game=1&season=20
Start time
04:48:25 2021-03-14
End time
06:44:29 2021-03-16


https://abrok.eu/stockfish/
Author: Vizvezdenec
Date: Fri Mar 19 11:58:17 2021 +0100
Timestamp: 1616151497
Add a specific FRC correction from classical to NNUE

... Which corresponds to approximately 40 Elo ...


_ _ _ _ _ _

But Game 26 involved a very near normal-type situation.
TCEC 28. Qh6 {0.00} -Diagram- Ng7 29. Ng4 {-1.08 oops}
2r1r1k1/p3p3/2b1np1Q/6p1/1PP5/P1BqN2P/5PP1/2R3KB b - - 1 28


On my old machine the latest Stockfish could not find 28...Ng7! at all,
at PV=9 it could not find it either,
only at PV=12 (?!?!) it finally found it in a few minutes and eventually moved it to best with an advantage to black.

Arena, restarted before each:
FEN: 2r1r1k1/p3p3/2b1np1Q/6p1/1PP5/P1BqN2P/5PP1/2R3KB b - - 1 28
AMD PhII X6, Sy.6
Stockfish_21032417_x64: Found 510 tablebases NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 52/58  08:28   1,364,787k  2,685k   0.00  28. ... Nf4 29.Rd1 Qxc3 30.g3 Rcd8 31.Bd5+ Bxd5 32.cxd5 Rf8 33.gxf4 Rf7 34.fxg5 Rh7 35.Qg6+ Rg7 36.Qe4 Rxg5+ 37.Kh2 Kf8 38.h4 Qe5+ 39.Qxe5 Rxe5 40.Rc1 e6 41.dxe6 Rxe6 42.Rc7 Ra6 43.h5 Rxa3 44.h6 Kg8 45.Nf5 Rdd3 46.f3 Ra1 47.Kg3 Rg1+ 48.Kf4 Rb3 49.Rxa7 Rxb4+ 50.Ke3 Rb3+ 51.Kf4

FEN: 2r1r1k1/p3p3/2b1np1Q/6p1/1PP5/P1BqN2P/5PP1/2R3KB b - - 1 28
(best at bottom)
Stockfish_21032417_x64: PV=9 ---------------------------------------------------------------------------
 44/29  13:04   2,145,704k  2,736k   0.00  28. ... a6 29.Ng4 Nf4 30.Kh2 Ne2 31.Bxf6 exf6 32.Nxf6+ Kf7 33.Nxe8 Rxe8 34.Qh5+ Kf6 35.g3 Nxc1 36.Bxc6 Re2 37.Qh8+ Ke7 38.Qe8+ Kd6 39.Qd7+ Ke5 40.Qg7+ Kd6
 44/8  13:04   2,145,704k  2,736k   0.00  28. ... Rf8 29.Rd1 Qxc3 30.Qg6+ Kh8 31.Qh5+ Kg8
 44/33  13:04   2,145,704k  2,736k   0.00  28. ... Red8 29.Bxf6 exf6 30.Qxf6 Ng7 31.Rd1 Qxd1+ 32.Nxd1 Rxd1+ 33.Kh2 Be4 34.Qc3 Re8 35.c5 Bd5 36.c6 Ree1 37.c7 Rxh1+ 38.Kg3 Be6 39.c8Q+ Bxc8 40.Qxc8+ Kh7 41.Qc2+ Kh6 42.Qc6+ Kh7
 44/17  13:04   2,145,704k  2,736k   0.00  28. ... Bb7 29.Bxf6 exf6 30.Rd1 Qe4 31.Ng4 Rf8 32.c5 Qc2 33.Rd6 Qf5 34.Rxe6 Qxe6 35.Qg6+ Kh8 36.Qh6+
 44/15  13:04   2,145,704k  2,736k   0.00  28. ... Kf7 29.Qh5+ Qg6 30.Qxg6+ Kxg6 31.g3 Bxh1 32.Kxh1 Kf7 33.Kg2 Red8 34.Kf1 Rh8 35.Kg2
 44/7  13:04   2,145,704k  2,736k   0.00  28. ... Ba8 29.Rd1 Qxc3 30.Qg6+ Kf8 31.Qh6+
 44/9  13:04   2,145,704k  2,736k   0.00  28. ... Be4 29.g4 Bxh1 30.Nf5 Qf3 31.Qg6+ Kf8 32.Qh6+
 44/11  13:04   2,145,704k  2,736k   0.00  28. ... Rcd8 29.g4 Bxh1 30.Nf5 Be4 31.Qg6+ Kf8 32.Qh6+ Kg8
 44/64  13:04   2,145,704k  2,736k   0.00  28. ... Nf4 29.Rd1 Qxc3 30.g3 Rcd8 31.Bd5+ Bxd5 32.cxd5 Rf8 33.gxf4 Rf7 34.fxg5 Rh7 35.Qg6+ Rg7 36.Qe4 Rxg5+ 37.Kh2 Kf8 38.h4 Qe5+ 39.Qxe5 Rxe5 40.Rc1 e6 41.dxe6 Rxe6 42.Kg3 Rd3 43.Kf4 Rxa3 44.h5 Kf7 45.Rc7+ Re7 46.Rc6 Rb3 47.Nd5 Rd7 48.Rxf6+ Kg8 49.Ke4 Rb1 50.Rg6+ Kf7 51.Rf6+ Kg7 52.Rg6+ Kf7

FEN: 2r1r1k1/p3p3/2b1np1Q/6p1/1PP5/P1BqN2P/5PP1/2R3KB b - - 1 28
(best at bottom, + =good for mover black; - =bad for mover black)
Stockfish_21032417_x64: PV=12 ---------------------------------------------------------------------------
 36/58  08:01   1,318,393k  2,737k  -0.17  28. ... Qe4 29.Ng4 Qh7 30.Qxh7+ Kxh7 31.Bxf6 exf6 32.Nxf6+ Kg7 33.Nxe8+ Bxe8 34.g3 Rd8 35.a4 Bxa4 36.Bd5 Nd4 37.Ra1 Bb3 38.Rxa7+ Kf6 39.Rf7+ Kg6 40.Rc7 Kf6 41.Bg2 Rb8 42.b5 Ne6 43.Rc6 Ke7 44.Bd5 Nd4 45.Rc7+ Kd6 46.Rg7 Kc5 47.Kg2 Bxc4 48.Bxc4 Kxc4 49.Rxg5 Rxb5 50.Rg8 Kd5 51.h4 Rb6 52.Rd8+ Ke4 53.h5 Rh6 54.Re8+ Ne6 55.f3+ Ke5 56.g4
 36/50  08:01   1,318,393k  2,737k  -0.05  28. ... Qh7 29.Qxh7+ Kxh7 30.Kh2 Red8 31.b5 Be4 32.Bb4 Nc5 33.g3 Bxh1 34.Rxh1 e6 35.h4 gxh4 36.Kg2 Kg6 37.Rxh4 f5 38.Nc2 Ne4 39.c5 Nxc5 40.Nd4 Rd5 41.Nc6 Rc7 42.Rc4 Nd3 43.Ne7+ Rxe7 44.Bxe7 Rxb5 45.Rc3 Ne5 46.a4 Rb2 47.Bc5 Ng4 48.Bxa7 Ra2 49.Rc6 Rxa4 50.Bb6 Kf7 51.Rc7+ Kg6
 36/48  08:01   1,318,393k  2,737k   0.00  28. ... Kf7 29.Qh5+ Qg6 30.Qxg6+ Kxg6 31.g3 Bxh1 32.Kxh1 Kf7 33.Kg2 Red8 34.Kf1 Nd4 35.c5 Nb5 36.a4 Nd4 37.Bb2 Nb3 38.Rc3 Nd2+ 39.Kg2 Ne4 40.Rc4 Nxf2 41.Bxf6 Kxf6 42.Kxf2 Ke5 43.Kf3 Rd4 44.Ng4+ Kd5 45.Ne3+
 36/36  08:01   1,318,393k  2,737k   0.00  28. ... a6 29.Ng4 Nf4 30.Kh2 Ne2 31.Bxf6 exf6 32.Nxf6+ Kf7 33.Nxe8 Rxe8 34.Qh5+ Kf6 35.g3 Nxc1 36.Bxc6 Re2 37.Qh8+ Ke7 38.Qg7+ Kd6 39.Qf6+ Kc7 40.Bd5 Qe3 41.Kg1 Qd2 42.Qc6+ Kd8 43.Qa8+ Ke7 44.Qb7+ Kd8
 36/49  08:01   1,318,393k  2,737k   0.00  28. ... Bb7 29.Bxf6 exf6 30.Rd1 Qe4 31.Ng4 Rf8 32.c5 Qc2 33.Re1 Bd5 34.g3 Bxh1 35.Kxh1 Qf5 36.Rxe6 Qxe6 37.Qg6+ Kh8 38.Qh6+
 36/25  08:01   1,318,393k  2,737k   0.00  28. ... Red8 29.Ng4 Be4 30.Bxf6 exf6 31.Qxf6 Bd5 32.g3 Rxc4 33.Re1 Qd2 34.Qg6+ Kf8 35.Qf6+
 36/30  08:01   1,318,393k  2,737k   0.00  28. ... Ba8 29.Ng4 Rxc4 30.Ne5 fxe5 31.Qxe6+ Kf8 32.Qxe5 Rec8 33.Re1 Qxc3 34.Qxe7+ Kg8 35.Qe6+ Kg7 36.Qd7+ Kh8 37.Re8+ Rxe8 38.Qxe8+ Kg7 39.Qd7+ Kg6 40.Qe6+ Kg7
 36/9  08:01   1,318,393k  2,737k   0.00  28. ... Be4 29.g4 Bxh1 30.Nf5 Be4 31.Qg6+ Kf8 32.Qh6+
 36/25  08:01   1,318,393k  2,737k   0.00  28. ... Rf8 29.b5 Be4 30.Bb4 Rf7 31.Qh5 Nf4 32.Qg4 Ne2+ 33.Kh2 f5 34.Qxg5+ Rg7 35.Qh6 Nxc1 36.Qe6+ Kh7 37.Qxc8 Qe2 38.Qe8 Qxf2 39.Qh5+ Kg8 40.Qe8+
 36/9  08:01   1,318,393k  2,737k   0.00  28. ... Rcd8 29.g4 Bxh1 30.Nf5 Qf3 31.Qg6+ Kf8 32.Qh6+
 36/41  08:01   1,318,393k  2,737k   0.00  28. ... Nf4 29.Rd1 Qxc3 30.g3 Rcd8 31.Bd5+ Bxd5 32.cxd5 Rf8 33.gxf4 Rf7 34.fxg5 Rh7 35.Qg6+ Rg7 36.Qe4 Rxg5+ 37.Kh2 Qe5+ 38.Qxe5 Rxe5 39.Rc1 Rd7 40.Rc4 Kf7 41.a4 e6 42.dxe6+ Rxe6 43.Kg3 Red6 44.Nf5 Rd2 45.f3 Kg6 46.Kg4 R2d5 47.Nh4+ Kg7 48.Nf5+
 36/55  08:01   1,318,393k  2,737k  +1.11  28. ... Ng7 29.c5 Kf7 30.Ng4 Qf5 31.Re1 Rh8 32.Rxe7+ Kxe7 33.Qxg7+ Ke6 34.Kh2 Rh7 35.Qxf6+ Qxf6 36.Bxf6 Rg8 37.Bc3 Rd8 38.Ne5 Be4 39.f3 Ba8 40.g4 Rd1 41.Bg2 Rc1 42.Bd4 Re1 43.f4 Bxg2 44.Kxg2 Kd5 45.fxg5 Re2+ 46.Kf3 Kxd4 47.Kxe2 Kxe5 48.g6 Rg7 49.b5 Rxg6 50.Kf3 Kd5 51.c6
Parent - - By sarona (*) Date 2021-03-26 03:10 Edited 2021-03-26 03:17
Thanks for the data. Did your 2700X crash?

Personally, I think the TCEC result was not very conclusive as to the superiority of either engine over the other. 25 games is a pretty small sample.

I am thinking of playing a match using K_Dragon 1.0 and Stockfish_21031911 (Vizvezdenec) using all 960 FRC starting positions (a list available here: https://www.mark-weeks.com/cfaa/chess960/c960strt.zip Big thank you to Mark Weeks whose site I very much enjoy) with reversed colors. Not sure of the time control yet. Certainly not 30'+5", though!
Parent - - By MrKris (***) Date 2021-03-26 19:57

> Thanks for the data. Did your 2700X crash?


I hope to have it back up soon with Ubuntu 21.04 ('daily build' first, I think it will update itself okay when it comes out 4/22).
Two problems: 1) I got a little larger M.2 instead of SDD, but I have not had time to finish.
2) I've been fascinated about my old machine - I did not know on it, even with no avx etc. etc., Sf NNUE can still easily beat the same version with NNUE off (Classical), almost as much as on newer machines I think; close enough for me though I did not test how much.

> K_Dragon 1.0 and Stockfish_21031911 (Vizvezdenec)


It would be interesting to see if Sf improves, though TCEC did have many games as you say.

Thanks for the site!
Parent - - By sarona (*) Date 2021-03-28 03:17 Edited 2021-03-28 03:38
If I recall correctly, that was the computer used during the old Immortal days when you would often create detailed analytical threads.  I have never used a Linux OS with chess.  My wife uses Linux Mint 20 (Cinnamon) with an octal, but I am not allowed to use it for chess. Some nonsense about viruses (with Linux?) or other nefarious purposes (she has read some of the troll posts on a certain other chess forum). :evil:

I assume that is why you use Arena. I think CuteChess has Linux builds as well. I am not sure how successful WINE is with analysis using Chessbase or Fritz. Wondering if there is a performance slowdown due to emulation or bugs (in WINE). You do not seem to be having any problems, though. I might try it one day. One good thing: most Linux builds do not not cost a few hundred bucks like Windows!

There was a new development build released regarding FRC today. https://github.com/official-stockfish/Stockfish/commit/62a0b65ff886f8f4895d854705c0c870e6a2a834

[Edit] I just noticed that there is a Linux build for LiGround 0.2.0, too. This project has much promise. https://github.com/ml-research/liground/releases/tag/0.2.0

Parent - By MrKris (***) Date 2021-03-29 00:19

> My wife uses Linux Mint 20 (Cinnamon) with an octal, but I am not allowed to use it for chess.


I wish I had bought Windows for my new machine.

My Ubuntu standard auto-update Manager suddenly said:
"Not all updates can be installed
This can be caused by:

...{one of several} -Unofficial software packages not supplied by Ubuntu."
https://askubuntu.com/questions/16494/upgrade-manager-wants-me-to-do-a-partial-upgrade

I know from experience  years ago this can be a real mess, far beyond what is said in the above link.
-Firstly back then I made the mistake of clicking 'Partial Upgrade', the only alternative to leaving it un-updated - then it removed anything 'unofficial' regardless the effect on what I was using/had installed.
I had to fiddle and mess and web search and repeat for hours to get everything I wanted working again, though it was fine before the automatic Ubuntu Update Manager complained.
-Secondly Linux is not completed, not a unified effort: so what if I installed Linux software supposedly Debian/Ubuntu compatible but not directedly from Ubuntu-which as very, very, little that is useful to non-programmers: its Linux and if my Ubuntu knows "Not all updates can be installed" then why can't it tell my why not?
-Thirdly, I suspect my "Unoffical" problem is from Nvidia's Cuda, ect., or Lc0 itself from the Linux instructions here: https://github.com/LeelaChessZero/lc0 , or something about my (done by Ubuntu) upgrade from 19.04, I am not sure.
-Rather than make it worse with 'Partial Upgrade' (see other nightmares on the web about that) it will be easier to start with a new Ubuntu, reinstall everything (just for chess in my case) and transfer old data later.

> I assume that is why you use Arena. I think CuteChess has Linux builds as well. I am not sure how successful WINE is with analysis using Chessbase or Fritz. Wondering if there is a performance slowdown due to emulation or bugs (in WINE).


I use Arena so I can edit and post a game from an event that I've run in CuteChess GUI, for both Linux and Windows. (their .pgn's work well with each other, Arena's evaluation graph works with CuteChess games).
Chessbase is hopeless for WINE though, Fitz 8 I think is the highest on the App Database below* but I do not have it.

I do not use WINE, Windows Arena seems fine but Windows Lc0 needs Nvidia's Display Driver & Cuda, the Windows versions not the ones Linux is using, I do not know if anyone has succeeded, or will be able to, in that yet.
WINE tries to fix some things all the time but in general if something does not work its authors (like Chessbase) do not care and will not help.
WINE does not slow anything down (I believe Ivanhoe was basically the only thing in the world that did work but slower - it had something very rarely used, then lately Rybka did not work on my old Wine 4.0 - a newer Wine might work, I am sure older ones did, it is not important to me though).
See https://superuser.com/questions/14594/why-is-wine-not-an-emulator , and
"Wine (recursive backronym for Wine Is Not an Emulator)" https://en.wikipedia.org/wiki/Wine

Only a very small fraction of Windows programs run in WINE.
*You can check here: https://appdb.winehq.org/ -- but use the "Browse Apps" on the left, NOT the top search bar (which just goes to Google/the web).

> You do not seem to be having any problems, though.


Sorry for the confusion: my above is real reason I bought a M.2 (upgrade to my SSD) was to start completely over from scratch (nothing but the new Ubuntu on M.2, having to reinstall everything) and still have my old on SSD although overdue for the regular periodic upgrading (should be okay for awhile). It worked fine a first. I had planned on being done by now and/or figuring out what I did, but no.

Ultimately it will be my fault, but in my view: my fault in not being a certified/degreed Linux programmer so I would know what directions on the web I followed but should not have.

What works for one might not work for another: Each Linux machine becomes unique - dependencies are loaded in and change the OS for the software that the user installs -- Windows is generally fine regardless of the apps installed, and it often has a good 'uninstall'.
Linux does not have anything like Windows Restore.

- So do not ask your wife to help me, I'll be fine, I can afford the REAL and permanent fix of buying Windows if necessary!

-- I'll see how far I can get today on my Ubuntu 21.04 Daily Build - and post here about it when I am done.

P.S. thanks for the interesting FRC hint (though I actually do not play that), and the LiGround link! (Someday I might have time for Gothic/Capablanca!)
Parent - - By MrKris (***) Date 2021-03-31 05:03

> You do not seem to be having any problems, though.


But, like in my post above, I've paid a lot of time for Linux and not buying Windows.
Its much, much, harder for an amateur like myself than it looks.
As in my post above I felt forced into restarting completely from a blank M.2 with a new Ubuntu install, re-installing all my software etc., and I do see that as quite a problem.

My 2700X/RTX 2060 is back up (hopefully)!
On the bright side I made my own generic way to compile Lc0 with 2 important aspects:
  1) All "apt install" from Ubuntu repositories (except cudnn), only the default Ubuntu sources in my "Software and Updates" (No Nvidia or any other keys/repositories).
Ubuntu's 'nvidia-cuda-toolkit' (Cuda not from Nvidia's site), Ubuntu's install-supplied xserver-xorg-video-nvidia-460 (driver not from Nvidia's site) ect.
  2) Latest and greatest versions: Ubuntu 21.04 (daily build) GCC 10, Cuda 11.2 ect., not the old ones referenced in Lc0's github instructions.

I was shocked when it actually worked - I'll make a post when I am sure it actually is working okay.

Meanwhile, preliminarily it looks good.
Below Lc0 is using a very small net for more of a stress test, though the latest settings MultiGather true, MaxOutOfOrderEvalsFactor 2.4.
Stockfish is the lastest from abrok.

In the first game Stockfish is playing with an unsound opening as a handicap, still I was surprised a little that the small net won.
In the second, no book, Stockfish as black again, Lc0 played a main opening safely and drew. [Event "40moves/5mins no Syzygy"]
[Site "2700X | RTX 2060"]
[Date "2021.03.30"]
[Round ""]
[White "Lc0-0.27--J104.1-30"]
[Black "Stockfish_21032717_avx2"]
[Result "1-0"]
[ECO "C40"]
[GameDuration "00:10:03"]
[GameEndTime "2021-03-30T19:12:17.583 PDT"]
[GameStartTime "2021-03-30T19:02:14.198 PDT"]
[Opening "QP counter-gambit"]
[PlyCount "84"]
[Termination "adjudication"]
[TimeControl "40/300"]
[Variation "Maroczy gambit"]

1. e4 {book} e5 {book} 2. Nf3 {book} d5 {book} 3. exd5 {book} Bd6 {book}
4. d4 {+0.58/18 12s} e4 {-1.57/33 12s} 5. Ne5 {+0.59/20 5.1s}
Nf6 {-1.31/29 1.9s} 6. Bb5+ {+0.61/19 3.0s} Nbd7 {-1.19/28 3.8s}
7. Bg5 {+0.64/18 4.5s} Be7 {-1.54/33 21s} 8. Bxf6 {+0.68/20 9.6s}
gxf6 {-1.52/29 2.4s} 9. Nc4 {+0.71/23 4.5s} f5 {-1.77/32 7.3s}
10. Nc3 {+0.75/16 19s} O-O {-1.44/29 4.9s} 11. Bxd7 {+0.77/17 0.27s}
Bxd7 {-1.48/31 3.1s} 12. Qh5 {+0.80/16 2.3s} Bb4 {-1.39/31 3.4s}
13. O-O {+1.08/17 13s} b5 {-1.41/32 7.2s} 14. Ne5 {+0.91/20 9.2s}
Bxc3 {-1.58/36 6.7s} 15. bxc3 {+0.90/20 5.1s} f6 {-1.37/33 4.5s}
16. Nc6 {+1.15/21 5.7s} Qe8 {-1.77/36 10s} 17. Qxe8 {+1.19/19 0.95s}
Rfxe8 {-1.62/32 6.1s} 18. a4 {+1.22/18 1.2s} a6 {-1.43/30 4.3s}
19. Rfe1 {+1.36/17 2.9s} Bxc6 {-1.90/40 39s} 20. dxc6 {+1.42/19 9.4s}
Kf7 {-1.60/33 3.9s} 21. Kf1 {+1.63/18 6.4s} Reb8 {-2.13/38 33s}
22. f3 {+2.18/19 13s} bxa4 {-1.81/26 2.4s} 23. fxe4 {+1.70/21 6.4s}
Rb2 {-1.93/31 6.5s} 24. Ke2 {+1.66/24 1.3s} fxe4 {-2.21/35 25s}
25. Kd2 {+1.69/24 1.7s} f5 {-2.59/32 3.8s} 26. Rxa4 {+1.78/23 2.6s}
Kf6 {-2.58/35 16s} 27. c4 {+2.29/21 16s} Rg8 {-2.72/35 4.0s}
28. g3 {+2.26/25 0.21s} Rb6 {-2.76/34 6.3s} 29. Rea1 {+2.31/23 0.90s}
Rd8 {-2.95/33 7.1s} 30. d5 {+2.50/22 7.1s} Ke5 {-3.22/34 17s}
31. Kc3 {+2.35/22 13s} h5 {-3.43/31 6.5s} 32. Ra5 {+2.76/23 5.4s}
h4 {-4.03/34 11s} 33. d6+ {+3.01/22 2.5s} Ke6 {-2.33/26 0.97s}
34. dxc7 {+3.17/21 4.2s} Rc8 {-3.09/34 6.4s} 35. Rf1 {+3.39/20 5.9s}
Rxc6 {-3.28/31 6.1s} 36. Rfxf5 {+3.71/18 10s} hxg3 {-3.47/31 3.7s}
37. hxg3 {+3.83/18 7.0s} Kd6 {-3.56/29 2.0s} 38. Rf6+ {+6.62/18 11s}
Kxc7 {-2.46/23 0.15s} 39. Rxc6+ {+6.87/17 0.21s} Kxc6 {-4.19/31 0.80s}
40. Rxa6+ {+7.49/16 4.0s} Kb7 {-3.95/27 0.12s} 41. Rg6 {+10.35/15 46s}
Re8 {-7.47/48 16s} 42. Kd2 {+10.93/14 0.22s}
e3+ {-7.76/45 15s, White wins by adjudication} 1-0

[Event "40moves/5mins no Syzygy"]
[Site "2700X | RTX 2060"]
[Date "2021.03.30"]
[Round ""]
[White "Lc0-0.27--J104.1-30"]
[Black "Stockfish_21032717_avx2"]
[Result "1/2-1/2"]
[ECO "C67"]
[GameDuration "00:07:45"]
[GameEndTime "2021-03-30T18:54:17.809 PDT"]
[GameStartTime "2021-03-30T18:46:32.634 PDT"]
[Opening "Ruy Lopez"]
[PlyCount "70"]
[Termination "adjudication"]
[TimeControl "40/300"]
[Variation "Berlin defense, Open Variation"]

1. e4 {+0.12/14 21s} e5 {-0.16/36 8.9s} 2. Nf3 {+0.15/17 4.2s}
Nc6 {-0.12/33 5.7s} 3. Bb5 {+0.15/17 1.9s} Nf6 {-0.21/35 2.6s}
4. O-O {+0.15/19 3.3s} Nxe4 {-0.14/36 3.8s} 5. Re1 {+0.15/18 1.0s}
Nd6 {-0.17/37 2.8s} 6. Nxe5 {+0.15/17 0.59s} Be7 {-0.17/37 7.9s}
7. Bf1 {+0.16/15 4.5s} Nxe5 {-0.17/37 2.8s} 8. Rxe5 {+0.14/17 4.8s}
O-O {-0.11/37 5.4s} 9. d4 {+0.14/16 1.6s} Bf6 {-0.09/34 2.9s}
10. Re1 {+0.14/15 3.8s} Re8 {-0.13/35 3.8s} 11. c3 {+0.14/15 4.1s}
Rxe1 {-0.11/33 3.9s} 12. Qxe1 {+0.13/13 2.8s} Ne8 {-0.11/34 4.0s}
13. Bf4 {+0.17/10 17s} d5 {-0.15/32 6.1s} 14. Bd3 {+0.17/11 4.9s}
g6 {0.00/34 7.2s} 15. Nd2 {+0.17/12 6.6s} Ng7 {0.00/33 4.0s}
16. Nf3 {+0.14/12 28s} Bf5 {-0.11/33 5.4s} 17. Bxf5 {+0.14/1 0.004s}
Nxf5 {-0.04/33 4.1s} 18. h3 {+0.14/11 8.4s} Ng7 {-0.08/32 5.3s}
19. Qd2 {+0.11/10 22s} Qd7 {0.00/34 8.1s} 20. Re1 {+0.08/11 17s}
Re8 {0.00/37 5.4s} 21. Ne5 {+0.08/10 0.21s} Qd8 {0.00/40 15s}
22. b4 {+0.07/10 11s} h5 {0.00/35 4.2s} 23. a4 {+0.07/10 3.4s} a6 {0.00/42 9.9s}
24. a5 {+0.07/10 7.4s} c6 {0.00/42 6.6s} 25. Kf1 {+0.07/10 7.4s}
g5 {0.00/41 4.9s} 26. Bg3 {+0.05/13 5.8s} Be7 {0.00/42 5.2s}
27. Nd3 {+0.05/12 4.4s} h4 {0.00/43 7.1s} 28. Bh2 {+0.05/15 4.2s}
f6 {0.00/44 5.7s} 29. f4 {+0.10/16 4.9s} Bd6 {0.00/46 7.9s}
30. Kg1 {+0.09/17 0.65s} Rxe1+ {0.00/50 5.9s} 31. Qxe1 {+0.08/16 2.0s}
Qc7 {0.00/46 6.3s} 32. Qe2 {+0.07/14 5.1s} Kf7 {0.00/46 6.6s}
33. Kh1 {+0.06/15 22s} Kg6 {0.00/70 13s} 34. Qg4 {+0.05/13 0.21s}
Nf5 {0.00/50 7.4s} 35. Qf3 {+0.04/13 12s}
Qb8 {0.00/56 8.9s, Draw by adjudication} 1/2-1/2
       _
|   _ | |
|_ |_ |_| v0.27.0 built Mar 30 2021
go nodes 1000
Found pb network file: /*mylocationforit*/J104.1-30
Creating backend [cudnn-auto]...
Switching to [cudnn-fp16]...
CUDA Runtime version: 11.2.0
Cudnn version: 8.1.1
Latest version of CUDA supported by the driver: 11.2.0
GPU: GeForce RTX 2060
GPU memory: 5.78766 GiB
GPU clock frequency: 1680 MHz
GPU compute capability: 7.5
info depth 1 seldepth 2 time 1175 nodes 4 score cp 14 nps 4000 tbhits 0 pv e2e4 c7c5
...
info depth 6 seldepth 14 time 1215 nodes 1101 score cp 14 nps 27525 tbhits 0 pv e2e4 c7c5 g1f3 e7e6 b1c3 b8c6 d2d4 c5d4 f3d4 g8f6 d4b5 d7d6
bestmove e2e4 ponder c7c5
Parent - - By sarona (*) Date 2021-04-02 02:10
Thanks for the detailed information. These experiences should help me when certain challenges arise. 

I might experiment with a Linux OS over the summer when I have a much less hectic schedule (COVID-19 has not affected my employment). I have been told by others that Linux Mint is not the way to go with this. Sara (my wife) was introduced to Linux by her father who is a computer technician. Our children and I often listen to her mutter "sudo" repeatedly some evenings.

I have successfully built Windows Lc0 binaries using Visual Studio - but not without a severe learning curve. I had problems with Meson and Python. Some path issues. The compilation process would break and I was going nuts trying to find out why. Probably should have visited the Lc0 Discord more often, but I prefer a conventional forum design like here and TalkChess (as well as Ed's forum). Its much easier to look up older, archived posts/threads.

"I was shocked when it actually worked"

I know that feeling! Before success was achieved, I was beginning to think why am I spending so much time on this?? Sort of like the fun I am having with perl and python. But, in most cases, the rewards are worth the effort.
Parent - By MrKris (***) Date 2021-04-02 10:42
Interesting! Thank you for explaining your situation.

For me Linux (Ubuntu only in my case) is a hobby I started to avoid buying Windows just for the free chess engines/GUI's on my chess machine, nothing against Windows.

My setup just survived a 80 package upgrade from Ubuntu as its becoming the final 21.04.
In a few days I will, if it is still going well, I'll make a new thread about my Lc0 experience, since I kept a log from myself if I needed it.
Unfortunately I did not timestamp my entries, something like $200 Retail Win10Pro divided by hours might have been noteworthy. The time from the research I needed to do to try to be certain about each step since I am still a beginner, of course not the steps themselves.
I made no manual/text path settings at all - everything worked together just from their install commands (sudo apt install xxx) only.
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