Stockfish reveals a secret shocking breakthrough move vs Leela chess (Modern Defence 2018)

Stockfish reveals a secret shocking breakthrough move vs Leela chess (Modern Defence 2018)

Hi all, I have another fascinating encounter
for you today. Stockfish the mighty number one engine in
the world. He’s playing white this time against Leela
in the Rabash, not rubbish, Rabash modern defense, sometimes known as modern defense. E4, g6, d4, Bg7, Nc3, c6 these are the opening
book moves given to both and here Stockfish chooses Bc4 and you might think this is a
bit surprising, but d5 you might think it was controlled by these two pieces, the d5
square. But in fact there’s a little tactical trick
here. Stockfish takes on d5 but there’s b5 which
is gaining tempo, two tempos while on the bishop. But one to play this and then relieve the
pressure on d5. If C takes, just Bxd5 this is just a clear
pawn up with a big advantage for white. So this is the idea, b5, Bb3, b4, this has
been seen before in over the board chess. Nce2, cxd5. Nf3, Nf6 now here Stockfish decides to play
a3. This does cast some pressure on the a7 pawn
that could be a vulnerable, a vulnerable pawn on semi open file. On the other hand when this happens there’s
pressure down the B file as well to consider. B takes, Rxa3. So activating this rook. Black castles, white castles Nbd7, Re1 in
a high level over the board game Ne5 has been played before. The Grandmaster Ftacnik against
Schneider. So Ftacnik 2610 against Schneider
2420. That was in Vienna 1996. Which was a win eventually for white. So that’s with Ne5 here. But in this game, we see Re1. Nb6 and now Ne5 here. So nope possibility of black even considering
taking on e5 at the moment. So what’s the point of Ne5 here? It’s actually a really nifty idea behind this. It’s not just tactically to think about Nc6. But defensively to be able to neutralize the
pressure down this B file potentially because the knight can support b2. So white wants to have its cake in to e2 to
have pressure on the A file without too much pressure to power it on the B file. We have Ng4 challenging this Knight. So we have the knight coming back to d3. So it is looking at protecting, but it’s also
got an attacking role as well potentially with Nc5. We have a5, c3 which means that the bishop
can come back at some points. But it also of course reinforces the d4 pawn,
that’s pretty solid here now. The Knight goes back, Bc2, Bf5, h3 is though
there is a concern maybe about this Bishop on f5 being a potential target moves like
g4 in the near future. In fact with e6, there’s even more of an issue
now. The bishop hasn’t got a retreat square. So we see Bf4, now Nc4, the pressure starts
on b2 a bit. But white is well prepared to handle that,
Ra2, Qb6 and now you might think this is passive looking. But yes, the Knights actually just reinforce
each other here with this move. Which reinforces b2. So there’s adequate pressure on b2 and the
bishop is controlling b8 here anyway. So it’s actually difficult for blacks put
more pressure on b2 that easily. We see Rfc8 and now g4 and this is very very
interesting after Be4. White plays a very very technically advanced
move here in my view. You might think f3 is possible. This actually is not so good of the e5 whatever
way this is cut. Because Bishop takes, Knight takes, Knight
takes, Bishop takes, Queen takes, there is Qxd4++ here and this should be an even position
and let’s have a look fxe4 instead then exe5, this possession is also quite useful for black
to equalize. So it does seem as though f3 is not really
cutting it here on Nxe5 instead. So Bishop takes, Knight takes. Let’s have a look instead of, sorry instead
of Bishop takes here let’s have a look at Knight takes, there is Nxb2 and again this
position should be about even. So Stockfishes’ move actually gets out of
any tactical liabilities relating to the kind of invisible tactics kind of evidenced in
this variation by playing Bc2 to get this Bishop out of the way as a tactical target,
you know for that Bxc2 in some lines. So we have Ra7 as though there is still the
interest maybe in getting some pressure on this b pawn. But here things kick off. F3, Bishop takes Knight takes. Nd7 this played and now it looks as though
this is really quite nice. It looks as though; well the bishops been
unveiled so e5 might actually be on the cards in some lines. At the moment e5 seems to be sufficiently
controlled. But this next move is dual purposes attacking
and defensive, Kg2 unpins the D pawn. But it also makes way for a pawn chain attack. This pawn chain isn’t so solid. Especially with the absence of the light squared
bishop sometimes even a bad bishop as the solidity of a pawn chain and it seems Stockfish
now has got an incredibly powerful plan especially with this bishop without a counterpart to
try and damage this pawn chain and we see what happens now Qd8. We have Qe2, it’s like every move almost
is directed to this pawn chain either the head or the two heads of the pawn chain in
particular are on the scrutiny. This Nb6 encourages the bishops drop back. But now under scrutiny this one, this is the
pawn chain head which is now going to be under scrutiny with h5 and it’s not possible for
black. So take on h4, because of g5 trapping the
Queen. For example Bb6 black would have to give up
the Queen and that’s not very good. That’s a winning advantage for white. So we have Bd6, yes, this pawn chain is under
scrutiny now. It’s official. Bxd6, Knight takes Rh1 with the idea of h5,
very very logical play from Stockfish. A4 and blacks Queen side pressure has amounted
to nothing at the moment. There’s no real pressure on b2 at all. So it seems yeah Leela is in big trouble here
at this point, Qf6. Hg chipping away at the pawn chain. Hg, and Qf2, a very very nifty move indeed. The idea of this sometimes the Queen will
pop in to h4 to look at you know the Kings side squares. So we have a3 and now another move putting
scrutiny at the heads of the pawn chain Ne6 now is looking at e6. Yeah and you might think, so there’s two pawns
on the scrutiny here from the two minor pieces. Yeah and there’s also the possibility of Rh6
to add more pressure to g6. So Leela is under huge pressure, that pawn
chain around the king is a valuable shield and it could be stripped away. And also you will note that there’s no dark
square bishop. So these dark square weaknesses around the
King are more pronounced. So without the dark square bishop we have
Nb7 on Ne8. It seems as though Rxa3 is just going to be
a good position for white. This end game is just a pawn up for not much. It’s just a good advantage there. So we have Nb7 and here a really incredible
move is played, and this does really demonstrate actually, especially Stockfish can play some
super beautiful chess. Can you guess what white plays if I give you
five seconds? It’s a really advanced tactic. But it’s positionally motivated in a way to
undermine the pawn chain around blacks King and that move is Nxe6, fascinating tactic. On Qxe6 then there’s a weakness of the last
move. It’s not covering h4 and in fact Queen h4
you might think what about the check? Doesn’t do anything. So this check here is just slaughter time
for example Bxg6++, Qxg6 and once the whole shield has been taken away around the black
King, this is not very good what happens. It’s not very good at all. Yeah black just gets exterminated in this
variation and ends up losing all the material etc. So yeah it seems Qh4 there’s no real defence.
if Kf8, white casually here plays this to just get control of the E file to cuts out
the escape square to make this a lot more effective, any check a lot more effective. So for example check and yeah white, it’s
just going to go to the E File for example. There’s no real stopping that because blacks’
pieces are actually the ones that are so called spectator pieces here. They’re all just spectator pieces. This is just horrible and in fact black could
end up losing material like this as well. So it does seem as though Qxe6 hasn’t got
a lot going for it. So let’s see Ra8 trying to ignore it. That’s just g5 lodging the Queen away. Then Qh4 with the same kind of effects. In fact Re1, this one just controlling that
E file pretty efficient in this line with a big advantage. So it seems as though Queen takes is not possible,
and you might think okay what about f takes? Let’s look at F takes now. So on F takes, Rh6. Yeah, it’s like destroying a pawn chain from
its head or heads here. Kf7, Rxg6 and once the shield’s gone then
especially with these pieces just huddled over here, real spectator pieces. The Queen and rook are more than sufficient
to cause a lot of damage here. Yeah if this is the best move, then that’s
not very good. A good situation, it’s not a good situation. Yeah, the b-pawn, the rook can sacrifice itself
and the queen with the pawns are just winning here. So it seems a very very powerful move Nxe6. A bolt from the blue is some classic annotators have sometimes said. A bolt from the blue. Nc4, we have now g5 just nudging the Queen
away from protecting h4 by force. For this Qh4 now threatening checkmate. We have Kf8 getting out of there. On Qe2++, yeah this really doesn’t help, this
position. This is a very casual move here and it seems
to leave even if there’s a check here it doesn’t matter, nothing matters. Now this is a good tactical line, because
rook takes, Knight takes is check. White just plays Rxe3 and after Qf1, Bf5++. This is a very very tactical line. Just opening up the Queen for coordination
on e7 and say Kc6. Yeah, the black king is just hunted down in
this line there’s too much pressure and this is a neat trick as well. So white ends up a total rook up here with
totally winning possession. You might be asking in this position hold
on a sec not so quick, hasn’t black got axb2 queening? White has Rxe8 and on queening check, now
if Kc8 here then that wins the Queen Ra8++ forces the Queen to drop back and we just
take the Queen rook up and also in this line let’s have a look at Kd8. There’s actually Rh7 and the two rooks are
still winning here against the Queen. If check then the King goes to e5, if check
then Kf6 and there’s no more checks. So that’s the end of black cause Ra8 is coming. So that’s pretty clear and you might think
hold on what about the check on b8, was that anything to explore? Not really. The King just goes to g5, I’ve checked the
same sort of thing. King finds a place where there’s no more checks. So that’s a winning position for white. So in the game Qxe6 here. Qh4, we have Kf8. It sorts of throwing in the check. Re1, this essentially wins the Queen in this
configuration. Is it’s cutting off the escape square of the
King and? There’s going to be Qh8# if the Queen you
know moved just to put that on the board. This is certainly a checkmate. So we have Qxe1. Here you might think Oh hold on Ne3++, there’s
Kf2. If Nf5 there’s check and then actually Qxc8
is best here casually with a big advantage. So in the game Qxe1, queen takes. The Knight come to d6, b takes, Re7, Qh4++,
Kg1, Kg8. We have Qf4, Ne8, Rb2. Knight takes, rook takes yes, White’s got
a material advantage and now it’s the passed A pawn which is a key trump card here. Check, the rook tries to get behind it but
now Qe5, Re8. There’s no point trying to defend the D pawn
it seems. Because this kind of thing with Rb8 is simplifying
in White’s favor with a big advantage. So Re8, we have Queen takes and it looks for
a moment actually the rooks might be a little bit dangerous. Because they’re coordinating certain, we’ve
seen that there’s a bit of coordination. But it’s not really cutting it here. This, the two rooks unlike don’t really cut
it enough. If for example check here, Ke2++, the King
can just escape like this to c4. So we have check and now Kg7. On check here there’s actually Kh3, for example
check, Rh2. Yeah that second rank can be used as defense. So black try Kg7 leaders in big trouble with
this Queen. Because actually it can also potentially be
used as a defensive mechanism once f4 is played to control key squares. Check and there’s no point in playing another
check here. Rxg5 was played. If Rh1, Rh2 again. So Rxg5, but that f4 which of course opens
up the defensive role of the Queen, check, the rooks at least well kept the coordinator
for a moment. Check, but it’s leading nowhere check and
you might think well there’s a lot of checks though. Kg1, we have Rh1. On Nh4++ here, check there’s just Kg3 this
configuration. The checks are basically running out. Yeah bang. Qxh1. So yeah that doesn’t really help. So Rh1, we have Qa3. So coordination of the Queen’s begins the
extra Queen, it’s played to the depth this game, no adjudication. Check, on Reg1 check, then Kf2, the King just
goes over here. So it’s gone really the position. It’s actually gone check, here so the Queen’s
controlling h1. Rxf4 we have now white on the offensive with
the checks and absolutely winning. Scooping everything up oh brother actually
efficiently, officially not trolling actually just efficiently checkmating. Okay I thought it was an enjoyable game. Leela is still evolving and Stockfish is the
world champion of chess engines and can play beautiful chess and for the moment it is my
number one analytical assistance. So a lot of the beautiful variations that
I put in videos you know Stockfish. So I’m not against Stockfish, I just find
Leela also a super fascinating thing and it’s great to have competition for Stockfish for
great, you know greater and greater versions. So we’re in a really fascinating time for
computer chess, a really fun time and it’s only fair to show the beautiful Stockfish
wins of course. If you enjoyed this game video as much as
me then please click the top left box which should appear shortly to become a member of, to play all the youtubers. So that’s my reference code 1053. You can also check all the YouTube analysis
s answers here in advance when the improved menu learn from the Masters and then you click
YouTube audio, you’ll see the analysis which sometimes gets updated. Okay comments, questions, likes, shares, subscribes
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43 thoughts on “Stockfish reveals a secret shocking breakthrough move vs Leela chess (Modern Defence 2018)

  1. Early materialism and not developing properly cost Leela this game IMO. But learning involves making mistakes… they say an expert is the one that has made any possible mistake already, and learned from it. Good game, thanks KC!

  2. Do you just go through the first comments on each video pasting “cheers, k” no matter what that comment actually says? 😂

  3. A fantastic win for Stockfish, which as you say can play some wonderful chess. Fine analysis too. Thanks KC keep up the good work

  4. Please be certain to remain objective and show Leela's losses as well as her wins. PS- Am I correct in assuming that you live and breathe chess?

  5. Really stunning this one, did leela go wild and stockfish punished the coming queen right sexy stuff thx KC 😻😽😸

  6. Did Leela blunder with Nb7 just before StockFish’s thunderclap Nxe6 move? Couldn’t Leela have calculated that StockFish’s Knight sacrifice with Nxe6 would be very strong in that her pawn protection around the King would be blown to smithereens?

  7. Thanks Tryfon for another amazing match.. Could I ask you to analyse some Bird's opening games, please? 🙂 Cheers!

  8. sir,i love your analysis very much, leela is the future of computer chess. i know that stockfish is super super strong, but for a short time , and i really love the aproach behind leelachess0.

  9. I appreciated your comments starting at 18:25. I am a huge opensource fan and couldn't be happier an opensource engine is the best chess engine in the world. At the same time, there is no denying that Leela (also opensource) is a force and will probably overtake traditional engines in the next one to two years. I use Stockfish9 to analyze my own games, but sometimes the depth of the calculations makes it difficult to really learn from it. On the other hand, your coverage of Leela (and your excellent analysis and explanation) has greatly increased my understanding of key chess concepts. The Leela series has become my favorite chess coverage on all of youtube. I hope to eventually watch all of the videos in the playlist.

  10. Nope, I would never wilfully put my King to the mercy of Two Rooks and a Knight Combo in the corner and a make defending a walk in the park. Great Work the Stockfish!

  11. At 14:45 why not knight check on e3 ten regardless what white plays, took to e8? It brings opportunity for discoveries depending where the king moves. The king move in and of itself would have to be very well thought out…

  12. What about @13:22 instead of the immediate …axb2 first black plays …Rxe3 Kxe3 then axb2 with the idea of b1Q? White seems unable to stop the queening with his rook or king in this line?

  13. Glad to see SF getting some recognition for great games too now and then before NNs make the SF project less relevant (or SF gets a NN of its own!)

  14. I read a casual comment on a Leela thread yesterday that they don't really expect to see Leela fully level up to SF until the 40,000 series. The 20,000 series was an experiment to see whether a slower learning rate would lead to a higher plateau (so far, it's looking like it will, but the training continues to see where it finally ends up). I didn't read about the impetus behind the 30,000 series, but it was portrayed as a fairly conservative evolution. It's the 40,000 series where many ideas floating around behind the scenes about improving bandit search might make it into the tree, included some recent theory that post-dates Google's own efforts.

    The paper A Survey of Online Experiment Design with the Stochastic Multi-Armed Bandit (2015) was cited as a good entry point into the rapidly evolving field of banditry, with several opinions expressed that Thompson Search looks good for a future Leela in limited initial evaluation, seeming to favour a slightly wider search that goes slightly less deep.

    The reason Leela progresses slowly is that search and training are codependent, and you can't really know if your choices play well together at the rarefied 3500 m flight deck until you spend six months furiously pedaling your inhuman-powered glider up hill.

  15. Stockfish rubbished Leela's Robatsch Defense … End of Era. ..NOT. Leela's Queenside pieces in Siberia while Stockfish sacks the Kingside. Love the commentary KC. There is beauty even in Leela's losses. Nice balance in your coverage. Leela snapping at Stockfish' heels, and it's just a matter of time before the Fish Teacher becomes the Student.

  16. Yes, I too am in love with Leela. Here's a thought: Leela devs should give her a human female voice ala the classic 1996 (PowerChess for Windows 95) & 1998 (PowerChess 98 for Windows 98) Power Chess Queen by Sierra Online. That would really give Leela a soul. See this voice commentary by the Power Chess Queen and you will know what I mean. She not only told you if you move was good or bad. She told you why. Hmm… whom today would be a great voice actor for Leela?

  17. It was a forced opening, and Leela was black. Leela would not play it if she was given a choice. Stockfish is the master of tactics. Stockfish wins this battle, but the war is not over.

  18. There is a huge potential to make even better chess engines. Traditional chess engine builders can try to explicitly formulate additional rules they can learn from Leela (better pawn play, thorn pawns, forcing pieces to not be able to reach their full potential, etc) to make their engines even stronger. While new additional new AI engines can maybe not only learn from playing against themselves but can potentially also learn from playing millions of games against the latest versions of Stockfish, Komodo and Houdini. It's fascinating to follow.

  19. "The pawn chain" "More pressure" "Heads of the pawn chain" "Eyeing" "Under scrutiny"


  20. You know, even though Stockfish defeated Leela in this game, I feel that Leela is still superior to Stockfish.  Stockfish's Ne6 move was brutally crushing, but that's the kind of move that brute force engines typically find…IMHO there is nothing special about it from a "chess novelty breakthough" standpoint.  Alpha Zero and Leela, on the other hand, find amazing, mind blowing, moves that both humans and brute force engines have never found before and that makes Alpha Zero and Leela better at chess as they are actually advancing human thought as to how to play the game.

  21. Excellent video, I love watching engines play and try to learn from them. I tend to play by homemade "rules" being self taught. One of my "rules" is to always consider capturing last, other tactical or positional moves may take priority. "Capturing is the last thing one should consider", at 13:40 you recommend RxQ I instantly saw this as wrong since Re8+ is much stronger, winning the queen not the exchange.

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