Has the Jobava London System been REFUTED?

welcome to chess dog where people come to get stronger at chess my name is john and today we're asking the question has the jobava london system been refuted is there a bust to the job london system well let's take a look at our story begins with simon williams who came up with a chessable course on the jobava london system let's look at our starting position d4 d5 knight c3 knight f6 bishop f4 this is the official start of the job of london and in this position another player grand master sam shankland in his program for on chesapeal recommends e6 now in this line in simon williams course he recommended e3 now sam shanklin's program came out after simon williams and in this position sam shanklin recommends bishop to b4 with the idea of putting pressure on that c3 knight the knight on f6 can come into e4 and apply extra pressure to that knight the line progresses something like this bishop to d3 c5 pawn takes knight b to d7 a strong move threatening knight takes c5 knight g to e2 and then a6 taking away that b5 square and in this position black is threatening to play e5 the white bishop goes to g3 and then e4 and that bishop at d3 would be completely trapped so bishop to g3 then knight to h5 going after the bishop pair i won't get too far into the weeds and the analysis of this position suffice to say sam shanklin makes a very good case that black is doing well here and it's pretty convincing so let's go back then if simon williams e3 is not that strong what then should white play well the discussion was advanced by none other than joe baba himself who after sam shanklin came out with his line against the joe bava played this move in a tournament game he's threatening obviously to take knight c7 and of course that would just win the game forking the king and the rook so black is forced to respond with a6 knight to a6 covering the c7 square then e3 bishop to e7 knight f3 castles now this is how the game jobava perez which was played on a title tuesday blitz progressed up until this point now sam shanklin covers this position and he only shows white playing bishop to bishop to e2 but joe bava in this position chooses h3 he wants to preserve that strong bishop at f4 and now if the knight goes to h5 that bishop can go right to h2 tuck itself away and stay on that strong diagonal c6 knight c3 c5 this is how the game with joe bava progressed jobaba plays a3 to keep pieces out of the b4 square bishop to d6 his opponent wants to trade off those dark squared bishops jebaba says now i'm going to keep him on the board plays bishop to g5 pins the f6 knight to the queen now this knight at a6 is offside so perez needs to centralize it so he plays it back to b8 with the idea of coming back to c6 jebaba takes on c5 bishop takes c5 bishop to d3 so now this bishop is aiming at h7 to potentially attack the king and also supporting the e4 pawn push which would help liquidate black's center the knight comes to c6 white castles h6 bishop h4 and now the bishop retreats to e7 so what we have here essentially for white is a slav structure the kind of structure black would get if he played the slav defense but white has that structure himself and in a slob structure the way you combat your opponent is you play the c pawn up two squares or the e pawn up two squares the problem in this position is that white c pawn is blocked by the knight at c3 so the only way he can attack black center is to play e4 so jobaba prepares that move with rook to e1 he wants to play the pawn to e4 black plays b6 so he can develop the bishop on b7 now here jobaba goes ahead and plays e4 he probably should have prepared that move with one more preparatory move such as queen to e2 then after bishop to b7 then e4 knight e4 bishop e7 97 94. and you have a position that is similar to what actually happens in the game after e4 jobs opponent should have played knight takes e4 then after a long complicated line bishop takes e4 bishop h4 knight d5 pawn takes queen d5 with a pin and attack on that c6 knight bishop to b7 knight takes bishop queen takes bishop queen to d7 attacking the b7 bishop rook b8 bishop takes c6 and if bishop takes c6 queen takes c6 you just have an equal position what what black can do here is play rook f to d8 and that hits the queen the queen is forced to go to c7 to stay in defense of the bishop on c6 queen c4 pins the bishop to the queen rookie to d1 hits the rook at d8 then after rook dc8 queen takes bishop rook takes bishop bishop takes in rook to f8 c3 and you have a very complex end game where white has rook bishop and pawn in exchange for a queen that would that is what black should have done instead black plays also a very natural move pawn takes pawn knight e4 bishop to b7 bishop takes bish knight bishop takes bishop c3 the idea of c3 is to blunt that bishop at f6 and keep it from extending all the way down to b2 limit that bishop at f6 mobility also it allows his own bishop at d3 to tuck back to c2 later if bishop to e7 queen to e2 the rook a would go to d1 bishop b1 queen c2 threats along that b1 h7 diagonal so instead black plays queen to e seven the queen still goes to e2 rook f to d8 rook a to d1 and now black plays g6 and this weakens his king side structure and this is going to be a problem moving forward jobaba seeing this takes advantage of it first of all he gets rid of that dark squared bishop black has dark squared weaknesses so you get rid of the dark squared bishop queen f6 bishop e4 now let me explain white strategy in this position because it's a very common strategy in the structure that you get in a jobava london essentially white has a queen side pawn majority you see those three highlighted pawns in green on the queen side versus two for black so what white wants to do is advance those three pawns against those two pawns and create one past pawn and then try to get that one past pawn all the way to the eighth rank so he can queen it now black has the palm majority on the other side of the board the problem is those pawns are in front of his king so if he advances them his king will be placed under attack so white is the only one who can really advance and create a past pawn here so white has an advantage now because he has a strategy and black really doesn't black plays knight to a5 to trade off light squared bishops but that's a mistake jobaba plays b4 which means he's able to advance that queenside palm majority with tempo by threatening the knight at a5 the knight has to go back queen to e3 hitting the pawn at age six king to g7 defending that pawn c4 the palm majority begins to roll rook takes rook rook takes rook rook to d8 rook takes rook and knight takes d8 bishop b7 knight to b7 so a bunch of exchanges both rooks and bishops and now looking at the position what white is going to do he's going to use his queen and his knight to help advance his pawn majority while also threatening his opponent's king and by mixing threats back and forth he's going to be able to put black in a position where he can't defend he plays knight to e5 joe bava could have probably just gone ahead and played c5 here pawn takes pawn takes queen to b2 95 the pawn the c pawn is running up the board white threatens knight to g4 hitting h6 with the queen and the knight so that was also a possibility he went ahead and played knight to e5 here knight to d6 c5 pawn takes pawn takes so now the fruit of that pawn majority has become has come to bear he now has his past pawn now he has to find a way to usher that c pawn up the board knight to f5 queen to e4 to get away from the threat of the knight and also to centralize the queen queen d8 and queen to b7 and now that queen at b7 is perfectly placed to help that c pawn march to the queening square of c8 the queen goes to e7 and c6 now if queen takes queen the pawn will take the queen and b would be unstoppable uh to the b8 queening square so black plays king to f6 and this is a critical critical mistake because now white can set up a threat of a discovered check against the king with this move joe baba plays queen to b2 now he's threatening to remove the knight revealing a check against the king and anything that knight happens to threaten black won't be able to defend because he's got to worry about his king being in check first and there's no convenient way to get out of this if he actually tries to play king to g5 to get out of that line of attack white just plays knight to f3 the king goes to h5 g4 is mate the king goes to f4 queen to e5 is mate so there's no way to get out of this discovery black's in big trouble he plays queen to c7 the knight goes to d7 with check the king moves to g5 if the king and move to e7 then queen to c3 holding on to that c pawn and the threat of g4 is simply devastating the it would kick the knight at f5 away and there's no good square for the knight to move to they all lead to a very quick loss for black so he moves instead to g5 queen f6 king f4 if he goes to h5 g4 is mate king to f4 queen to c3 with a threat of queen to f3 check and the king would be have to go to g5 then queen to g4 mate now this is in time pressure this was a blitz game and job actually misses a few uh mating patterns here but i'm sure it was uh in a time scramble black plays e5 and here joe bava could have gone ahead with that queen f3 king g5 queen g4 mate the f6 square is covered by the knight at d7 instead he plays g3 check king to g5 h4 check king g4 knight takes pawn check the knight is defended by the queen at c3 so cannot be captured king to h3 g4 check a discover discovered check via the queen on c3 king h4 pawn takes knight pawn takes pawn queen g3 check king h5 and f4 with a threat of queen to h3 mate so black plays queen to e7 with the hopes of blocking that attack but after queen h3 black actually resigned in this position because he would be forced to play queen h4 and then queen f5 check would force the queen back to g5 and then pawn takes queen so this is a good line against the uh job of london it's true but the job of london is still very much playable after the move right up here after e6 the move knight to b5 is the right way to go thank you for joining us at chess dog see you again soon goodbye

Channel: ChessDawg

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Id: E6apRXqvx-A

Length: 13min 13sec (793 seconds)

Published: Tue Nov 09 2021