Sunday, 13 March 2022

Bad Wörishofen Round Two

Father Kneipp ... his presence is everywhere in Bad Wörishofen
Simon Bogner (1732) - Spanton (1912)
U2000
Chigorin
1.d4 d5 2.c4 Nc6 3.e3!?
A quiet-looking continuation that has been tried by Réti, Tartakower, Rubinstein, Anand, Bareev and other strong players.
3...e5 4.cxd5!?
Stockfish14.1 and Komodo12.1.1 prefer this to the slightly more popular 4.dxe5, which usually continues 4...d4 5.a3.
4...Qxd5 5.Nc3 Bb4 6.a3!?
Much more popular is 6.Bd2.
6...Bxc3+ 7.bxc3 Nf6 8.c4 Qd6 9.Nf3!?
This is not in ChessBase's 2022 Mega database. Normal is 9.d5.
9...e4!?
The engines much prefer 9...exd4.
10.Nd2 Bg4?
How should White proceed?
*****
*****
*****
*****
*****
11.Be2?
11.Nxe4 wins a pawn.
11...Bxe2 12.Qxe2 0-0 13.0-0 Rfe8 14.Bb2 Rad8 15.Nb3 b6 16.d5!?
The engines prefer developing a rook, eg 16.Rfc1.
16...Ne5 17.Bxe5 Rxe5 18.Nd4 Rh5 19.h3 a5 20.Nc6 Re8 21.a4 Rh4 22.f4?
Contrary to first appearances, Black was not really threatening 22...Ng4 as White has 23.g3 Rxh3 24.Qxg4 Qh6 25.Ne7+ Kf8 26.Qxe4 Rxe7 27.Qg2 with what the engines reckon is equality. White can therefore develop a rook, rather the text, which is a mistake.
22...exf3 23.Rxf3 Qc5 24.g4
24.Rc1 can be met by 24...Nxd5.
24...Ne4 25.Kg2 Ng5 26.Raf1!
The best move in a bad position. 26.Rg3 fails to a capture on h3, eg 26...Nxh3! 27.Rxh3 Rxh3 28.Kxh3 Rxe3+ etc.
26...Nxf3
The engines prefer adding to the pressure with 26...h5!?, eg 27.Rxf7 Rxh3!?
27.Qxf3 f6 28.Nd4 Rh6 29.Nf5 Rg6 30.Qf4 Re5 31.Kh2 Qb4 32.Rf2 Qxa4?
White to play and win
*****
*****
*****
*****
*****
33.Qxe5!
The start of a combination that changes White from being the exchange down to being a rook up.
33...Qd7
33...fxe5 34.Ne7+ Kh8 35.Rf8#.
34.Ne7+ Kf7 35.Nxg6 hxg6 36.Qe6+!? Qxe6 37.dxe6+ Kxe6 38.Rd2 (1-0, 45 moves).

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