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Alexander Grischuk vs Maxime Vachier-Lagrave
World Cup (2017) (rapid), Tbilisi GEO, rd 4, Sep-14
Zukertort Opening: Sicilian Invitation (A04)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Sep-14-17  jffun1958: MVL wins the armageddon by drawing.
Sep-14-17  Straclonoor: After 43 moves game was totally won for white.
Sep-14-17  ChessHigherCat: <Straclonoor: After 43 moves game was totally won for white.>

We have different definitions of the word "totally". After 43 moves, with R&P vs. B&P, all MVL has to do draw is trade off the pawns. Then Grischuk practically forces MVL to advance his pawn to the 6th rank, while his own is only on the 2nd, making it even more drawish.

Sep-14-17  avidfan: Following yesterday's Aronian vs D Dubov, 2017 game where GM Seirawan showed how to win in a <R+P vs b+p> ending, even he and Eric Hansen on "chessbrah" stream had a hard time showing the win here after move 44...Be3-f4


click for larger view

44. Ra2 g4+ 45.Kh5 g3 46.h3 Be3 47.Kg4 Bf2 48.Kf3 Be1 49.Ra4 Kg7 50.Rg4+ Kh6 51.Ke3 Bf2+ 52.Ke4 Be1 53.Kf5 Bf2 54.Rg8 Be1 55.Rh8+ Kg7 56.Re8 Bf2 57.Re6 Kh7 58.Rg6 Kh8 59.Rg4 Kh7 60.Kf6 Bb6 61.Rxg3 Kh6 62.Rd3 Bf2 63.Kf5 Kh5 64.Rd8 Kh6 65.Re8 Bd4 66.Kg4 Bb2 67.Re1 Ba3 68.h4 Bb4 69.Re2 Bc3 70.h5 Kg7 71.Rh2 Ba1 72.h6+ Kg6 73.h7 Bh8 74.Rh5 Kf6 75.Rg5 Bg7 76.Kf4 Bh8 77.Rg8 Bg7 78.h8=Q Bxh8 79.Rxh8 with a rook + king vs king winning endgame. Mate in 11.

Sep-14-17  JPi: Well to win such ending on time increment is really a difficult task.
Sep-14-17  JimNorCal: Someone posted a YouTube video of MVL and Grischuk chatting. Dang. MVL is short. Really short.
Sep-14-17  cro777: Jonathan Bryant‏: "Anybody who says it's not worth learning theoretical endings should ponder MVL's situation right now."

This game decided on the qualification for the quarterfinals of the World Cup 2017. Grischuk missed to convert a theoretically won R+P vs B+P with pawns on adjacent files endgame and MVL moved on to Final 8.

Position after 41…Bc5


click for larger view

This position is theoretically won after 42.Kh6! (the only winning move).

Grischuk was winning until 64.h4? which was a decisive mistake and the game ended in a draw.

https://www.youtube.com/watch?v=Wo-...

Position after 63…Bf2


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Instead of advancing the pawn, White’s winning plans in the diagram position, according to GM Efstratios Grivas are:

"1. Either to kick the black king away from the h/g files and for this he will need his king on the h-file before anything else.

2. Or to restrict the black king on his last rank and then simply push his h-pawn, assisting by his king, creating a mating net.

But for the second plan Black must ‘cooperate’ so the first plan is the ‘forcing’ one!"

Grivas' full analysis of the endgame you can find here:

https://chessdailynews.com/wp-conte...

"The initial position was winning for White, but how to play accurately till the end with limited time. The only way to do it is to have made your homework and know exactly what and how to do it", concluded Grivas.

Sep-14-17  Marmot PFL: I see from that article that black still had to play very well indeed even once he reached the theoretical draw. As far as doing your homework it helps if the player could know what ending (if any) was going to arise in the game.

I was suspicious of h4 during the game but had no idea what the correct plan should be. This ending seems more complex than the Aronian-Dubov ending from yesterday as here both pawns don't block each other and are able to advance.

Sep-14-17  cro777: <Marmot PFL: This ending seems more complex than the Aronian-Dubov ending from yesterday as here both pawns don't block each other and are able to advance.>

You are quite right. The R+P vs B+P endings with the pawns on adjacent files are more difficult to play than the endings with the pawns on the same file.

Vachier-Lagrave: "I was confident I would hold in this endgame but then I blundered something, I got in real trouble and made this draw by miracle; I got a fortress I probably shouldn't have got."

Sep-14-17  althus: Doesn't it seem like Grischuk gets into these marathon rook endings not infrequently? Or am I just imagining this. I seem to remember a year or so ago in a major tournament there was a game that lasted a hundred and fifty moves or more, that was R+B vs R or some such nightmare, and I feel like he was involved in that one too. I'm fairly sure it was between a super-GM and a slightly second-tier GM like Tomashevsky or such, with the super-GM having the stronger side. Whatever the case, when that's the situation you're virtually obligated as a professional to grind it out.
Sep-14-17  althus: Hrm. I wonder if I'm misremembering this

Ding Liren vs A Giri, 2015

Sep-14-17  tea4twonty: 42. Kh6! - 45. Ra2! - 47. a3!
Sep-15-17  althus: ...and please forgive me for not knowing about this

Game Collection: 47k_RB:R (no pawns)

Dec-31-18  avidfan: Anyone who read my post above will have picked up my errors in <renumbering all moves starting from 44 by incrementing by 1 to 45> to the end - sorry for any inconvenience or confusion caused. Anyhow it is the winning method that is useful to know in the difficult endgame.

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