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Vassily Ivanchuk vs Magnus Carlsen
Amber Tournament (Rapid) (2008) (rapid), Nice FRA, rd 1, Mar-15
Sicilian Defense: Delayed Alapin Variation (B40)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Mar-15-08  sheaf: what 47. f4 ?? e4 is winning; is the scoresheet right...
Mar-15-08  Eurotrash: <sheaf> sure its right. 47..e4 is not winning for black, white king is in time to stop the pawn, if thats what you're worrying about.
Mar-15-08
Premium Chessgames Member
  tamar: yes, I missed that trick too. 47...e4 is a bit of an optical illusion. The King can take the "long" way back 48 Kh4 and get within the queening square.
Mar-15-08  sheaf: <tamar> <eurotrash> true :-0 , i am ashamed of myself
Mar-15-08  shakh.i.shekh: I think Ivanchuk got too fancy. With 36 PXP PXP; 37 NXP N-C3 the Queen side pawns are liquidated but White emerges a pawn up with a centralized King and a continuous threat of creating a passed rook pawn. This should be enough to win. At least that is what my chess engine thinks. Any comments from endgame experts or analysts with top flight chess engines?
Mar-15-08  Ideefixe: <acirce> was right, the absurd looking move 41.Kd3 is a winning move after the tempting 41...Nxe5+ 42.Kd4 Nc6+ (42...Nxg4 loses on the spot) 43.Kc5. However Black can play first 41...Ke7. Now white activates his h pawn, trying to play at both flanks, with his a and h pawns. The h pawn will pin the black knight at g6 and so it will become a kings affair...and humble pawns of course. It can go as follows 42.h6 Nxe5+ 43.Kd4 Kd6 44.a5 Ng6 45.h7 Kc6 46.Kc4 The position arising.


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Maybe 46...Nh8 can follow, but I am too tired to look into this right now... Any willing chess fans from the other hemisphere are most welcome though. Keep analyzing!

Mar-16-08  Magnusch: <Iddefixe> It looks (in my very primitive mind) like white is winning in your position (after 46. Kc4).

A good plan (in my mind) is to move the a5 pawn forcing black king to stop it. Then go to the e8 square with the king (if black tries to stop the way with the king there is another a-pawn to move..). From e8 the white king threatening the pawn at f7, but more important - it can go and eliminate the black knight! And then a queen will appear => White is winning.

The only chance for black seems to try something with the 3-2 pawn majority on the king side. But I'm pretty sure it's not going to work because it is to slow.

So - in my "primind" this is an (easy) win for white.

Mar-16-08  Magnusch: <Ideefixe> Sorry misspelling!

Btw. I wonder about what the engines are suggesting in your position (after Kc4). Ten years ago I dont think they could find an idea of the kind I suggested. But now they look much deeper. But my intuition about Chess Programming (?) says they dont find it. But I am very unsure about this..

Mar-16-08  Ideefixe: <Magnusch> Seems like a nice plan. So, if 46...Nh8 we can have 47.a6 Kb6 48.a7 Kxa7 48.Kc5 Kb7 50.Kd6 Ng6 51.Kd7 Nf8+ 52.Ke8 Nxh7 (the black knight is doomed after this capture) 53.Kxf7 Kc6 54.Kg7 Nf8 55.Kxf8 Kd5 and now the a pawn decides the outcome of the battle. You can never trust engines to find the winning idea when at endgames. Feed them the idea though and they will do their duty. As for the mispelling, dont fret about it, this id has all the charm in its sound.
Mar-16-08  Magnusch: <Ideefixe> Agree in something like your suggested line. About computers..They surely dont like to give a way a passed pawn (or two! or in some variations here maybe three!!). I haven't counted all the moves here but it is probably to many for those engines.

About this name..Ideefixe.. I will try to remember who it is. I see the picture/image (a little dog I think) but for the moment I dont know. Dont help me here. I will find out. Of course there is INTERNET!

Mar-24-08
Premium Chessgames Member
  offramp: Magnus Carlsen must have nearly crashed his autogyro after 36.Nxa3.

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