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Ian Nepomniachtchi vs Hikaru Nakamura
Sinquefield Cup (2019), St Louis, MO USA, rd 5, Aug-21
Queen's Gambit Declined: Harrwitz Attack. Main Line (D37)  ·  1-0

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)11...d4 was played in Caruana vs Nakamura, 2018 (0-1)better is 14.b3 g6 15.Nf3 Re8 16.Be2 Be6 17.Ng5 Rad8 18.Nxe6 fxe6 = +0.42 (20 ply) 14...g6 15.a3 Bf6 16.b4 Ne5 17.Be2 Be6 18.Qc7 Nc6 19.b5 = -0.08 (23 ply) ⩲ +0.75 (26 ply)better is 34...Ke6 35.Bxg7 Bxh2 36.Bh6 Be5 37.Be3 Bf6 38.Bb6 Be7 = +0.46 (38 ply) ⩲ +1.03 (42 ply) 57...Ba3 58.Kd4 Bb2+ 59.Ke3 Bc1+ 60.Kf3 Bd2 61.Bd4 Be1 ⩲ +0.80 (64 ply) ± +1.60 (70 ply) 60...fxe4+ 61.Kxe4 Bd2 62.f5+ Kf7 63.Bf4 Be1 64.Bg5 Bc3 ⩲ +1.05 (58 ply)+- +11.64 (35 ply)69...Bb2 70.Bd6 Kd5 71.Be5 Bc1 72.Bc7 Kd4 73.b4 Bd2 74.f5 +- +132.63 (48 ply)1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35434 more games annotated by Stockfish]

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Kibitzer's Corner
Aug-22-19
Premium Chessgames Member
  An Englishman: Good Evening: A bit surprising that White could snatch a pawn on move 15 without losing a piece, but Black always has a piece hanging. Even when Nakamura temporarily regains the pawn, he still has enough of his pawns loose that he must go down a pawn anyway.
Aug-22-19  TheBish: I'm surprised to see only one comment here; maybe because this game wasn't broadcast live on this site. It was one of the better and most interesting games yesterday. Nice win of a pawn by Nepo in the late opening/early middlegame. And surprising push of the pawn by Naka (57...b4) in the endgame, putting the pawn on the same color as the bishops. It's possible that he could still draw after this (haven't checked with a strong engine), but it would have taken the strength of Houdini (the engine, not the magician, although maybe magic is also needed) to find the drawing line (if it exists), and Nakamura was very low on time, down to about 5 minutes at this point I think.
Aug-23-19  sfm: <TheBish ... And surprising push of the pawn by Naka (57...b4) in the endgame, putting the pawn on the same color as the bishops.> I was also surprised, but playing a little around shows that Black is lost no matter what he plays, as he can't hold on to his b-pawn. He can only get the f-pawn in return if he allows the swapping of bishops, which won't work.

15.Bxh7+!! was brilliant. Impossible to know if it wins, but Black is brought to the edge.

An impressive performance by White.

Aug-24-19
Premium Chessgames Member
  HeMateMe: Apparently the endgame is lost for black after 33...Bxh2. White will centralize his King and eventually the black Bishop will run out of moves.
Aug-26-19  Hokey pokey: Isn't the h pawn poisoned after 33.Bd3?
33...Bh2 34.f4 traps the B.

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