Tuesday 28 June 2022

Kraków Round Four

FACED a Ukrainian junior (born 2009) yesterday.

Saints Peter & Paul Church, built 1597-1619

Spanton (1861) - Vladyslav Garsky (1860)
U2200
Caro-Kann Tartakower
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6
Currently very fashionable.
6.c3 Bd6 7.Bd3 0-0 8.Ne2 Re8 9.0-0
The mainline in ChessBase's 2022 Mega database runs 9.Qc2 h5 10.Be3 Nd7 11.0-0-0 with an unclear position although one from which Black scores an excellent 52%.
9...Nd7 10.Ng3 Nf8
How should White proceed?
*****
*****
*****
*****
*****
11.Nf5
Seeking to deprive Black of the bishop-pair, but Stockfish15 and Komodo13.02 like 11.f4!?, continuing 11...c5 12.d5 g6 13.c4, preferring White.
11...Bxf5!?
Black gives up the bishop-pair but does so by moving an unmoved piece to capture a knight that has spent three tempi to reach f5.
12.Bxf5 Qc7 13.h3?!
There is a lot to be said for 13.g3 - White has the only light-square bishop, and a pawn on g3 would restrict the options of Black's remaining bishop.
13...Re7 14.Re1 Rae8 15.Rxe7 Qxe7 16.Bd2 Bb8
The engines like 16...Ne6, or 16...g6 followed by ...Ne6.
17.Qe1 Qd6
Not 17...Qc7?? 18.Qxe8 Qh2+ 19.Kf1 Qh1+ 20.Ke2 Qxa1 21.Qxb8.
18.Qf1 Qd6 19.g3 Qd5 20.Bc2 c5?
The engines reckon Black should attack on the kingside with 20...h5 or 20...f5.
21.Bb3?
Stronger is 21.Qb5, hitting the black rook as well as the c5 pawn.
21...Qd7 22.Qc4 Rc8?
The engines point out 22...cxd4 is playable as 23.Ba4?! Rc8 is fine for Black, but 23.cxd4 gives White a passed, albeit isolated, pawn.
23.dxc5 b5 24.Qg4 f5!?
Probably objectively better is to accept an exchange of queens, but White would be well on top.
25.Qd4 Qc6 26.Re1 Ne6 27.Bxe6 fxe6 28.b4
Even stronger seems to be the engines' 28.Bf4, eg 28...Bxf4 29.Qxf4 Qxc5 30.Rxe6.
28...e5 29.Qe3?!
Probably better is 29.Qd3.
29...h6?!
The engines reckon 29...Rd8 leaves White on top, but is Black's best try. If 29...Qd5, one line given by the engines runs 30.Qe2 Qxa2 31.Qd3, claiming a large advantage for White.
30.c4?!
Creating unnecessary complications. The engines reckon 30.Qe2 is winning.
30...bxc4 31.Bc3 Re8
Perhaps stronger is the engines' 31...a5 32.a3 axb4 33.axb4 Qd5, although White is clearly better.
32.f4?
Weakening. The simple 32.Qe2 is strong.
32...a5 33.a3?
If I had seen Black's next I would have preferred 33.b5 Qxb5 34.fxe5 with a complicated but, according to the engines, balanced position.
What should Black play?
*****
*****
*****
*****
*****
33...Rd8!
This gives Black strong counterplay.
34.Bxe5?!
Almost certainly better is the engines' 34.Qf2!?, but 34...e4 is good for Black.
34...Rd3 35.Qf2 Ba7?
Winning is 35...c3, or 35...axb4 followed by ...c3.
36.Bxg7??
I saw what was wrong with this even as I captured the pawn. Instead 36.Qg2 is winning, according to the engines.
36...Kxg7 37.Qb2+
Or 37.Re7+ Kf6 38.Rxa7 Rd1+ etc.
37...c3 38.Re7+ Kf8 39.Qe2 Rxg3+ 40.Kh2 Qg2+ 0-1

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