Hi all. I have a historically interesting game to show you. I am going to show you this is probably the
last game that the Leela ID 11248 will play at TCEC. Leela
made it quite a long game actually so this was against Fritz Chess Engine - I believe there
was there is going to be another replay game of where there was a network fault
but this was the last official tournament game of Leela - so against
Fritz. So lets have a look. 1.e4 c5 so Leela playing White. We have the Sicilian defense
and here's the end of the book. e5. Now we have Nb3 Bishop e7 Bishop
e3 Bishop e6 Nd5 Knight takes exd5 so you can see why it has a queen side pawn
majority four pawns here to the three on this side of the board if we cut the
board in half. Queen d2 black castles Knight a5 Queen c7 White castles, Bishop g6
Qc3 offering the exchange of Queens but this would give White
if this happened this would give white some pressure on the b file - it looks
pretty uncomfortable so we have Bishop d8 and Leela takes off the Queens
and plays b4 here. We have Knight d7 Rfc1 Rab8 f3 Rfc8 e4
Bishop takes a5 rook c7 and it looks as though already there's a kind
of fortress in the position I'm not going to give too much commentary on
these positions I just want to take you to something which I find a little bit
special a little bit magical later on we get we have this fortress where it seems
as though it's difficult to break through here very difficult to play
break through so quite a lot of high-level shuffling and it looks as
though you know this this surely is gonna be sent for a draw although Fritz
was getting short on time and playing on its increment. It's time management hasn't
been the greatest throughout the tournament and actually it's tournament placement
reflects that perhaps this like lowest placed in Division one at the time in this game
so was Fritz going be able to draw this or not it seemed very very likely
and we're all waiting and all discussing actually quite a few of us on the on the
Lila live chat a lot of fun which network to send for the Premier Division
so I I said jokingly Lili was like dragging out this this game to help the
network carry on learning it was just dragging out this game it seemed like a
total fortress I didn't really see any way for whites breakthrough but there
was actually a critical moment coming up which someone's asked me to make note of
around here this was the points where it seems as though white could have played
Bishop takes d6 check so this here rook takes and then yeah a whole piece set
for up takes b7 which gives you know classic connects it passed pawns is this
enough for a bishop well it turns out if we follow this continuation it seems
stockfish 10 ends up giving it you know a nice advantage for white hair this
this continuation would have been it seems away for a big advantage and so
there's an outside past pawn their pawn up this should be willing for white so
anyway they wouldn't play Bishop takes d6 check so I move 87 plays this and the
game continues quite a bit so the discussions can't carry it on quite a
bit on the on the new live chat which which discord which i think is one of
the most pleasant real-time chat rooms i've ever seen i was a bit hesitant a
few months better to use them but once you start using it's a very very suave
setup so check out the lila live chat a lot of fun discussions at the moment
about which network to send so yeah and this game did start to drag I just felt
myself as though what is actually going on now is is
there any chance to break the binds the kind of fortress because anytime if
white wants to exchange off bishops it weakens D free so Bishop e2 might not be
that desirable and that bishops not actually doing much there on g4 but it
is it looks like a fortress you know Magnus Coulson said he doesn't
believe in fortresses is this is this just a fortress though is this just a
fortress draw so interesting okay so we have now Bishop take C fiber a change
here Bishop takes e5 critical mole milestone in this game at move 137 and
then so swapping winning that b7 pawn foot for a five and then the game
carries on and it looks as though this is a little bit scary for black King
coming to that my central square again and the continuations of which Lila
networked sent carrion in fact the straw poll was made and it looks as though
yeah one which is not the cutting-edge ID but one which has been fairly well
tested is is a good candidate on the current straw poll of which leader ID to
send so I don't know how many of you been following the Lila self-learning
graph it did spike up in the last day in fact quite dramatically it spikes up in
the last day but you can't just go on on on the graph you need to like test the
ID so here at move 183 there's c5 c5 break so this changes
the pawn structure and it looks for a moment as if the King's a bit awkwardly
placed there as if the King's going to get mated but yeah we have a bit of
interesting stuff happening here but now Bishop c4 check and black has to give
back black has to play this so yeah after this so black has to play that
because if King f 6 then Bishop d5 and this is winning
for whites it'll be a totally winning the exchange up so that has to be taken
and then we have this possession so this is now carrying on here and so the
discussions continue on the live chat which which idea of Leyland sends that I
have actually I've actually checked out a few videos recently on on the size of
this and tried to take out some of the common themes of how to be more decisive
generally about things I think some of the strongest themes were to sort of
whatever you do make sure it aligns to your core goals and beliefs and also to
anything you do do even if it seems a bad decision if it helps you get to a
better version of yourself as a learning experience then it might be worthwhile
upon me something dramatic here happen so the porn is allowed to go to the
seventh Frank and many people were convinced if this happens even may
actually if this happened it doesn't look as though white can make any
progress it's all here this looks like a total fortress if I ask you to pause the
video for five seconds wouldn't you think this is a draw well it's up to you
if you want to do that okay nothing much is gonna change for a moment rook c5
though but there's a slight clue here that rook c5 carries with it the idea of
rook takes b5 to Queen the a pawn just in time you know as an example if
the bishop didn't move to d3 so just as an example then bankrupt xp5
and all the Sun this is a fast queen ER and that wins so that has to be avoided
so we have the bishop moving out of the way but it is a clue which is
interesting that that could contain the seed of the structure that idea of rook
takes b5 but it's not evident here it seems to me at least how that could be
used so we carry on this game and people why is this game carrying on and there's
multiple evaluations if you follow this at CSEC of other entities which also did
think white has a certain winning probability it wasn't set at zero so
we're wondering what is this what why isn't it why isn't this just the draw
they all got it wrong that they're fallible so what on earth could happen
which really transforms this position into any sort of advantage for a it
looks as though Linda was just messing around it should should just be a draw
right this should be a total draw so what could possibly go wrong for black
in this position as long as that rook takes b5 tactic is avoided surely this
is a certain 100 percent sense well i unclad draw except here g4 at moved 280
G for this is a real shocker this is putting a pawn to be captured by two
opponent pawns and why is this a way of losing the position so this is very very
interesting fraught for me because actually it's a very very subtle way of
creating a fork if we think of a fork as something unpleasant for the opponent
because they have to juggle two issues with one move that is a very important
way of winning games yes or so on in his tactics but mention that the double
attack is one of the key like pillars of most tactical combinations even very
advanced once the fork is like a fundamental pillar and he's occurring
other writers on tactics so how does this g4 relate to any kind of fork in
this position now if you remember the rook takes B 5/10 equate crates
sometimes a winning past pawn so what what is making that into a fork it's
very very interesting here now on F takes G for
this wasn't played H takes G for was played this examine F takes G for rook
befriend this position here there is a kind of full even here of potentially
playing things like f5 so let's carry on here
King d2 this is just a variation just the variation but we end up where white
plays f5 through zugzwang in this position now I'm not sure yet there was
there was no other move here right this the bishop I can't go here because a
rook takes b5 can't go to D free cos King taste and the rooks handling II one
so the King is moving away from f5 so a witness of the loss move to play f5 now
once f5 is played it turns out here this is a little bit more Zulte swaggy than
before because we reach a position where here black is losing material in this
critical position on my last is g3 happens I believe the reason for this is
our after king g6 rook tanks b v eh6 g4 it's important here to play King takes e
- it's about to answer g2 with King f2 and that's winning 4y clearly if in this
position off the g3 one plays a7 rather casually black has a tempo gaining
resource after a a queening not Queen which allows Queen G a check but to play
a 1 and then black is the one that's better
after queening with check so overall in this line it seems as though yeah this F
takes G for line just just to recap that there's a revision this happens just as
a recap as an example so basically blacks driven it's kind of
zugzwang territory here rook d5 where G phrase prompted and that G
so eh porn energy palm drop off and that's going to be willing for wise so
interesting resources in these end games very intricate resources subtle stuff so
in this position g-free has to be played and then check rook takes h5 check and
then black is getting scooped up this is a big advantage for white with that
extra pawn now so in the game actually H takes g4 was played and it still seems
well what is this is this just we're losing blacks got another pass porn here
you have check routes e7 rope b5 King going to d2 so the Kings cuts off but
now look look after up c5 so threatening rook tanks b5 the bishop moves rook c5
bridge up c4 and now the point is H 5 H 5 so undermining the F 5 point believe
that or not and now here now that F 5 is weaker it isn't supported by g6 porn
this makes a crucial difference for actually forking b5 with f5 here now
King f6 was playing with c5 Bishop d3 Brooke c6 check
Brooksie free and now here rook c5 and you see the point Black's faced with
rook tanks f5 or rook takes b5 and if Bishop d3 there's a check and then
taking on d3 so we've put that on board there's a check and we could just take
on d3 knowing that the pawns not queening so um here after rook c5 black
gives up that pawn and now it's become clear cut as a win for white as if by
magic and I just felt really dumb about this never seeing this possibility at
all whatsoever I was absolutely convinced it was a stone-cold draw
fortress draw and the chess place interface gave up at
move 300 by the way the game actually ended in 308 moves but I can't easily
show you that here so 308 moves it was the longest game of T SEC Division one
it seems yeah the longest game so anyway if you found that point about the magic
folk instructive I mean I did I found it kind of magical this was a new thing for
making this being able to win this this game as a new thing I just absolutely
convinced it was raw what we're all been wasting our time watching this game
endless is if something was gonna happen but we kind of were mostly convinced
nothing was gonna happen isn't that amazing so anyway if you
enjoyed this game video then please click on the top left box which should
appear shortly to commemorate chess well done and play against other youtubers
you want to check the YouTube analysis of this game in advance or all these
games in advance with the improve menu learn from the master youtube order
button comments question installation to see description link share subscribe to
notification now really appreciate it and also the new teespring store in the
description ok thanks very much
addendum this is the final cross table for the record so lunar dominated
division 1 so this is quite some way that neil has come from two seasons ago
where it was barely winning any game in Division four so it's a conquer division
one like this is a phenomenal achievement Parrilla so she'll be
heading into the premier division now along with the comodo engine which uses
also the Monte Carlo tree search but not the neural network component yet from
animating positions but it might do in the future so congratulations to both
for for being promoted to the Premier Division but yeah there's one game of
leader which actually wasn't a losses to be replayed so barring that doesn't
change the end result leaders dominated division 1 in spectacular fashion so
congrats through the whole the other team
and let's see what we can do in the premier division as you much