Tuesday, 21 May 2024

Winning Chess

AUSTRIAN Fide master Siegfried Neuschmied won the Bodensee Senioren with +5=2-0, gaining 25.8 rating points.
His most important game was probably in round six, when he was upfloated on board one against the clear tournament leader, Polish international master Henryk Dobosz.

Neuschmied (2234) - Dobosz (2314)
Spanish Cozio
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7!? 4.0-0
This is easily the most popular continuation in ChessBase's 2024 Mega database, and is treated as the main move by Alexey Dreev in his 2014 Chess Stars book Anti-Spanish: The Cozio Defence.
4...g6 5.d4
Dreev pays most attention to 5.c3.
5...exd4 6.Nxd4 Bg7
"The position is not promising for White" - Dreev
*****
*****
*****
*****
*****
7.Be3 0-0 8.Nc3
How should Black proceed?
*****
*****
*****
*****
*****
8...d6
Dreev awards an exclamation mark to 8...d5, stating: "This is no doubt Black's best move and it equalises without any problems. (The text) is not so energetic and it does not clarify the situation in the centre." There is no record in Mega24 of Dobosz having played the Cozio, although he has one game with 3...g6, so it seems on this occasion he played an opening with which he was not familiar. Stockfish16 and Komodo14.1 change to yellow after 8...d6, meaning they regard it as dubious.
9.Qd2
Dreev: "White's chances seems to be preferable, thanks to his space advantage."
9...a6 10.Bxc6!? Nxc6 11.Nxc6 bxc6 12.Bh6!?
White has damaged Black's pawn-structure and now ensures Black does not have the bishop-pair as compensation.
12...f5!?
This seems to be a novelty - 12...Rb8 is known - and is not liked by the engines.
13.Bxg7 Kxg7 14.f4!? Rb8 15.b3 c5 16.Rae1 fxe4!?
This opens the c8-h3 diagonal for the bishop, but activates the knight and makes the black king look a little less safe. The engines suggest 16...Rb4, with what they reckon is a slight edge for White.
17.Nxe4 Bf5 18.Ng3 Rb4 19.c3 Rb8 20.Re3 Qf6 21.Qe2 a5 22.Qa6 Ra8 23.Qc6 Ra7 24.Rfe1
How should Black respond to White's threats?
*****
*****
*****
*****
*****
24...Bc8?
I suspect most, or at least many, club players would choose 24...Rf7, which is also the engines' choice.
25.Re7+ Kh6!?
This is best, according to the engines, but the white position is much easier to play.
26.f5
The engines reckon best is 26.Qd5!?
26...Qxc3 27.Kh1!? Bb7?
Black has better, eg 27...Bxf5, when the engines reckon that, to keep a large advantage, White needs to find 28.R7e3!?, a possible continuation being 28...Qd4 29.Rf3 Kg7 30.h3!? Qh4 31.Re8 Rxe8 32.Qxe8, with what the engines reckon is a winning attack.
28.Qd7 Rf7 29.Qe8 Bd5 30.Rxf7 Bxf7 31.Qe7
This bishop is immune because, if captured, the white rook would be hanging.
31...c6 32.Qf8+ Qg7 33.Qxd6 Bd5?!
A bad move in a bad position, but the better 33...Qd4 does not bring much relief, eg 34.Qf8+ Kg5 35.Ne4+ Kxf5 36.Nd6+ etc.
34.Qf4+ 1-0

No comments:

Post a Comment