WTF happened here? Leela C Zero destroys Stoofvlees in 13 moves - TCEC season 17 Premier division

Hello chessfriends and welcome to the season 17 of the TCEC. The tournament starts with a Qualification League where all newcomers will be featured, including new AB engines and Neural Networks. The best engines of the Qualification League will promote to League 2 and then to the League 1 and finally, the best placed 2 engines from League 1 will qualify for the Premier Division. The best two engines of the Premier division will play then in the superfinal. In the last season LC ZERO won the tournament and now all the engines have improved and we will have the best engine chess tournament in history.
Today I wanted to show you a great game by Leela C Zero destroey another top engine after only 13 moves.
HERE IS THE PGN OF THE GAME:
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. h4 e5 8. Nf5 Nc6 9. Ne3 Be7 10. Bd3 Nh7 11. g5 hxg5 12. hxg5 Be6 13. Ned5 Bxg5 14. Bxg5 Qxg5 15. Nc7+ Ke7 16. Nxa8 Qg2 17. Qh5 Ng5 18. Qxh8 Nf3+ 19. Kd1 Qxf2 20. Nb1 Nb4 21. Nc7 Bg4 22. Qe8+ Kf6 23. Qd8+ Kg6 24. Qxd6+ f6 25. Qxb4 Qg2 26. Rf1 a5 27. Qe7 Qh2 28. Ne6 Nd4+ 29. Kc1 Bxe6 30. Nd2 a4 31. b3 Bh3 32. Kb2 Qxd2 33. Rg1+ Bg2 34. Rad1 Qf2 35. Rxg2+ Qxg2 36. bxa4 Qg4 37. Rc1 Qg2 38. Qxb7 Qd2 39. Rg1+ Kh5 40. Qxg7 Qb4+ 41. Kc1 Qa3+ 42. Kd1 Nf3 43. Qh7# 1-0

[@MTd2]

It's interesting that Leela did not respect any of the principles teach to beginners: no castling, did not develop the pieces ( queen side was underdeloped); sacrificed way to many paws, at the king side, living him unprotected. Some people saw other insane violation of basic theory.

[@johndoublew3060]

"Fuck chess principles" Bobby Fischer

[@youareelonmusk5517]

Picasso said it best: 'Learn the rules like a pro, so you can break them like an artist.'

[@Jozarovschesschannel]

Hahahah, Fischer had really his way to tell things

[@Jozarovschesschannel]

Great quote

[@cyrilogana4204]

Aah, Leela, my kind of girl :)

[@lemonriver3995]

E5 in move 7 is in the given opening, maybe stoofvlees doesn't want to play it either.

[@zwz.zdenek]

They let the engines play a game on each end of that same opening.

[@tvelichkov]

Hi, thank you for the video and the analysis, but maybe it will be good to mention what opening book were given to the engines and when they start to play on their own. For this game specifically they were given 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. h4 e5 8. Nf5 Nc6

[@Jozarovschesschannel]

Ok thanks. I didn't know that

[@tvelichkov]

@@Jozarovschesschannel so basically all moves in green (when you browse the game from tcec-chess.com) are given to the engines (there is also no Evaluation/Depth/Speed/.. etc data for these moves, it only says book).

[@clintonmead]

I'm pretty sure the first 8 moves are the book given not the choice of the engines. So criticising Stoofvlees for e5 Is silly because it's just the book move it had no choice.

[@rogerlie4176]

You should check out the reverse game as well. Stoofvlees got nothing in the opening and the game ended in a draw after 52 moves.

[@Jozarovschesschannel]

Roger Lie yeah The two games showed really the difference between this two engines

[@saarike]

Leela C Zero totally controls the game from nearly beginning of the battle. Stoofvlees has been totally crushed. Excellent explanation and vid, thanks.

[@Jozarovschesschannel]

Thanks for the support

[@thewarlordscalling6537]

U should highlight wre the opening book ends.

[@n8style]

Great video! Very nice analysis thank you!

[@Jozarovschesschannel]

Thumbs up

[@luwangth999]

Great analysis.. keep it up ..well analyzed

[@Jozarovschesschannel]

Thanks a lot

[@cronaldinho]

Congratulation on 8000 subsribers......

[@isolatedpawn8824]

Hi, I do not know, if you mentioned it, but until move 8. ...Nc6, these move where book moves given by TCEC, so no choice for the engines or neural network respectively. Furthermore, this setup is more a Sveshnikov Sicilian, not a Najdorf, because the pawn is not on a6 and normally, you do not play e5 in Najdorf, except in the line which is called English attack where white plays Be3. Thank you for the great content.

[@Jozarovschesschannel]

The commonNajdorf goes with e5

[@BongelaMnguni]

I think stoofvles went for that variation because black ends up with an attacking position for a rook. Possibly black was winning a lot during self-play because of mutual blunders

[@Jozarovschesschannel]

Probably It was abaoout bad calculations.

[@smashu2]

Ok so e5 was book it is given to give an advantage to white so you could analyse how leela played the black side of this and manage to draw.

[@alexstarseeker8693]

Video starts at 2:00

[@MTd2]

Stoofvlees is not weak. It is a very powerful engine, or it wouldn't be in the Premium Tournament. If it did not behave "properly" it is becaue it saw something odd with Leela.

[@enesklnc6951]

Woww amazing game and beatiful analyssing

[@Jozarovschesschannel]

Thanks

[@MTd2]

There is a new hardware, more powerful, for both NN and AB engines. Leela gets stronger with more nodes than other engines. So, if you increase x100 the nodes for Leela and for other engine, she will benefit. Right now, she is at the same level, or slighly superior, to A0. At the superfinal, if she qualifies, she will be more powerful than A0, with longer time controls.

[@Jozarovschesschannel]

But still this game was really shocking

[@MTd2]

@@Jozarovschesschannel You should enter Lc0 discord. It's a lively community. KingCrusher is a member there, and knowing about Leela would improve your videos. For example, this NN was trained by Sergio Vieri, a collaborator, using games from the main run. This NN is larger and more powerful. There is a lot of information there.

[@Jozarovschesschannel]

Ok I'll do that

[@Radjehuty]

Lc0 is without question much stronger than A0 at this point. A0 was only a proof of concept not intended to be competing in an environment like tcec.

[@kuhaku9635]

This thumbnail and board is really familiar 🤔🤔🤔 I Believe I have seen it somewhere

[@Stockfish1511]

Problem with nn engines is that they dont use tablebase like ab engines. So there is always chance for them to make blunders that are leading to complete loss. Stockfish can also make mistakes that lead to a loss, but not imediate loss but overtime by opponent improving on that mistake. However eith nn they do every now and then those kind of blunders that makes them lose badly. Ofc those mistakes become much lesser when the nets are training. Stoofvlees is very strong engine, but it still needs much more training to not make those misstakes. Lc0 still does similiar blunders, but far lesser than it was doing year ago.

[@luisllontopbarahona3188]

Good game. Thank you for sharing and your comments on the game

[@leuteriskost8500]

It was a great game and a great analysis, keep going.

[@Jozarovschesschannel]

giannis tsilis7 thanks

[@MordimersChessChannel]

I see some inspiration in the title ;)

[@Jozarovschesschannel]

Yeah It was really a WTF moment for me

[@shauryabihany8662]

What a match!

[@Jozarovschesschannel]

Saket Bihany tcec and ccc superfinAl. Great chess

[@luciengrondin5802]

The time when Leela's tactical skills were her weakness seems long gone. She's sharp AF nowadays.

[@Jozarovschesschannel]

It will be a sharp final I think, Stockfish vs Leela.

[@-_Nuke_-]

"Stoofvlees" sounds is like "Rufus" and "Dufus" mixed with each other some weird way XD

[@truthincorporated5475]

13...Bxg5 is of course a blunder. It's difficult to comprehend that a chess engine with a rating of way over 3000 could make a mistake like this.

[@balazsio]

Blundering the rook didn't help I guess. With Kings Indian defense I have a feeling it would give more resistance.

[@kostaspramatias320]

Very nice game Jozarov. That's some kind of defensive moves only computers find. And Hikaru Nakamura of course but that's another matter.

[@Jozarovschesschannel]

Hikaru is a legend. I should probably publish one of his games again.

[@ivanzonder5228]

Is Hikaru that great ? so among super GMs only him can find that move ? why is that

[@vladiracer]

Is a flaw in the programming, of course exists millions of flaws in the programming of these engines, the matter is that only arises in few games, but if the chess engines play hundreds of millions of games we will have a full library of stupid mistakes by chess engines

[@dannygjk]

No, if an engine misses a crucial line it is not a 'flaw in the programming'. Every engine can miss a crucial line. They have to choose which lines to look at. They can't always see all the bad lines because there are too many lines. The programming alone is not everything that is used for engine decisions. The programming code is only half of the engine decision making. The combination in this game is so deep and complex the engine might miss a crucial line.

[@vladiracer]

Partly agree, but if an engine cant see a line then must make a choice, in fact the engines cant see all the lines, have a limit, when make a mistake is not blindness is a flaw, this is the job of the programmer, make these flaws less notorius

[@dannygjk]

@@vladiracer It is impossible for an engine to see all lines even 'only' to the depth of the combination in this game. Do you have any idea of how quickly the game tree expands?

[@chesslessonscom]

Great video keep up the good work and share the donation button. Thanks for sharing pgn.

[@smashu2]

odds are e5 is losing by force...

[@GaryKatch]

I’ve learned that in chess it’s rare for things to be simple, yet in your analysis you said “simply” fifteen times! (3:16 5:21 5:26 7:41 8:10 8:22 8:41 8:51 9:02 9:06 10:25 10:50 10:56 11:45 13:01)

[@Jozarovschesschannel]

I think there are some moves we can call simple if you apply the main principles in chess. This tactical level is of course not possible for a human to reach, but still i try to explain the main principles even in this top engine leve. Maybe my bad English makes me to repeat a word many times. I hope that you still enjoyed the game

[@jaanuskiipli4647]

If I play, I get destroyed right out of the opening most of the time

[@Jozarovschesschannel]

My problem most of the times is tactical calclulation in the middlegame

[@stopover1238]

I think you said It's game over even after 5 moves..you are smarter than leela

[@Jozarovschesschannel]

Strategy my friend, strategy

[@shantoreywilkins651]

#wow

[@dimitriskontoleon6787]

Lc0 7 wins! With over 99,99% change lc0 stockfish superfinal... I love this. I love lc0 ideas much more than stockfish ideas. Is much more posissional style.

[@Jozarovschesschannel]

Me too

[@parth3614]

Can you tell me theme of your board?

[@Jozarovschesschannel]

It's from chess.com. I think it is the most beautiful one

[@parth3614]

@@Jozarovschesschannel can u pls tell name of the theme. I also found it most beautiful

[@Jozarovschesschannel]

@@parth3614 Dark wood theme

[@LuaChels]

If you're gonna cover more engine and NN matches, check this website www.ccrl.chessdom.com. It shows head to head comparisons for Engines and NNs in different time frames and game modes. This website might increase your information about the NNs and the Engines

[@Jozarovschesschannel]

Thanks for the info

[@user-iz7yq1pk4h]

Game 65 watched ❤

[@abraham8104]

Is Leela chess zero same as alpha zero??

[@Jozarovschesschannel]

No but similar

[@abraham8104]

@@Jozarovschesschannel I know that both are neural network and it is different from a normal engine. But my doubt is like how they related, is on an update of other or are they both from same company or are they both totally different neural networks

[@puremercury]

@@abraham8104 According to wiki: Leela Chess Zero (abbreviated as LCZero, lc0) is a free, open-source, and neural network-based chess engine and distributed computing project. Development has been spearheaded by programmer Gary Linscott, who is also a developer for the Stockfish chess engine. Leela Chess Zero was adapted from the Leela Zero Go engine,[1] which in turn was based on Google's AlphaGo Zero project,[2] also to verify the methods in the AlphaZero paper as applied to the game of chess.

[@Radjehuty]

@@abraham8104 you can think of Leela as something of a little sister of alpha zero, though at this moment she is far more evolved now. Alpha zero was created by deep mind owned by Google. Leela is an open source project developed by Gary Linscott not affiliated with Google as a way to continue the zero ai concept after alpha zero was discontinued.

[@abraham8104]

@@Radjehuty Ok so correct me if I am wrong. Leela is an open source platform. Alpha zero was made from Leela(something analogous to Ubuntu and Debian made from Linux) Then again why was alpha zero discontinued

[@adventuresofdavid]

Leela would be the annoying hot girlfriend of your friends who destroyed your chess club.... multipass!!!!

[@Jozarovschesschannel]

Lee Loo ;)

[@davidsaint8866]

Please speak louder.

[@cronaldinho]

First

[@humanrightsadvocate]

First get your chess principles right, then distort them at your leisure.

[@shantoreywilkins651]

#😷😷

[@orvillemedina2183]

Youre,good but please limit your talking

[@orvillemedina2183]

Youre,good but please limit your talking

[@Jozarovschesschannel]

Ok will do

[@orvillemedina2183]

Thank you and sorry but i really like your choice of games

[@Jozarovschesschannel]

Yeah i sometimes talk too much