Réti
1.Nf3 d5 2.c4 e6 3.b3 Nf6 4.g3 c5 5.Bg2 Nc6 6.e3!?
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| How should Black proceed? |
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6...dxc4 7.bxc4 Qd3!?
All eight games in ChessBase's 2023 Mega database to reach the position after 7.bxc4 continued in this way, but Stockfish15.1 and Komodo14.1 are unimpressed, preferring White.
8.Na3 Be7 9.Qb3 Nb4
Exchanging on b3 is too cooperative, so instead the engines suggest retreating the queen to d7 or d8.
10.Ne5!? Qxb3
This is Komodo14.1's top choice, but Stockfish15.1 still prefers retreating the queen, this time to f5 or d8.
11.axb3 Bd6!?
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| What should White play? |
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12.f4!?
This and 12.d4!? are liked by the engines.
12...Bxe5?!
It was probably better to castle, although the engines give White the upper hand.
13.fxe5 Nd3+ 14.Ke2 Nxe5 15.Nb5
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| White is temporarily a pawn down but has the bishop-pair and a strong queenside initiative |
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15...0-0 16.Rxa7!
The engines reckon this is even stronger than 16.Ba3 in Colin McNab (2379) - John Richardson (2293), 4NCL Team Championship (West Bromwich) 2013. That game continued 16...Nfd7 17.d4 Nc6 18.dxc5 with a winning advantage for White, according to the engines (1-0, 35 moves).
16...Rxa7 17.Nxa7 Bd7?!
The engines fluctuate between 17...Ng6, 17...Re8, 17...h6, 17...Rd8 and 17...b6, but agree White is winning.
18.Bb2 Ra8 19.Ra1 Nc6
A tad better may be 19...Ng6.
20.Nxc6 Rxa1 21.Ne7+ Kf8 22.Bxa1 Kxe7 23.Bxb7 Kd6 24.d4 Ne8 25.Bb2 Bc6!?
The engines do not like this, but at least White is deprived of the bishop-pair.
26.Bxc6 Kxc6 27.Ba3 cxd4 28.exd4 Nf6 29.b4 Ne4 30.b5+ Kb6 31.Bb4 f5 32.Ke3 g5 33.Be7 g4 34.Bd8+ Kb7 35.Kf4 Nd6 36.c5?
White wins easily after 36.Ke5 Nxc4+ 37.Kxe6.
36...Nxb5 37.Ke5 Kc6 38.Ba5 Kd7 39.d5 exd5 40.Kxd5
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| Komodo14.1 is convinced White is still winning, but Stockfish15.1 gives White only a slight edge |
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40...Na7 41.Bd2 Nc6 42.Be3 h5?!
The engines agree 42...Na5 is better, but differ as to whether White is winning (Komodo14.1) or merely has a slight edge (Stockfish15.1).
43.Bg1 Nb4+ 44.Ke5 Nc6?
Black loses tamely after this, but gets practical chances with 44...Nd3+ 45.Kxf5 Ne1, after which White seems to have only one winning plan.
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| Can you find White's winning plan? |
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The 'natural' 46.Bf2 Nf3 draws, but 46.Kg5! (46.Kg6 comes to the same thing) Nf3+ 47.Kxh5 Nxg1 48.Kxg4 is a tablebase win, according to Syzygy.
The game finished:
45.Kxf5 1-0
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