The previous Tuesday saw exactly the same match-up in the same division and at the same venue except that time I was on board one for Battersea 2.
Last week's game can be seen at DV1, while last night's game is below.
Spanton (2040) - Roberts (2056)
Sicilian Accelerated Dragon
1.Nc3 c5
Our previous game saw 1...e6 2.d4 c5 3.d5, becoming a Benoni in which I obtained a winning position but lost.
2.e4
Most popular is keeping the game in independent 1.Nc3 lines with 2.Nf3, when the main line in ChessBase's 2022 Mega database runs 2...Nc6 3.d4!? cxd4 (Stockfish14.1 and Komodo12.1.1 much prefer 4...d5!?) 4.Nxd4, which is how 1.Nc3 pioneer Dick van Geet liked to play.
2...g6 3.Nf3 Bg7 4.d4 cxd4 5.Nxd4 Nc6 6.Nxc6!?
The main move is 6.Be3 but, as I have noted before, the text can also lead to interesting play.
6...bxc6 7.Bc4 Qa5!?
The main line in Mega22 runs 7...d6 8.0-0 Nf6 9.e5!? dxe5 10.Qxd8+ Kxd8 11.Re1 (not 11.Bxf7? e6) with a position from which White scores well in practice but that needs more tests .
8.Bd2 Rb8 9.0-0!?
This pawn sacrifice may be a novelty. Known moves are 9.Bb3, 9.Qf3 and 9.Rb1.
9...Rxb2!?
This may be too greedy. The engines prefer 9...Nf6, when Stockfish14.1 continues 10.Qe1!? 0-0 11.Rd1, claiming a slight edge for White, while Komodo12.1.1 gives 10.Nd5 Qc5 11.Nxf6+ Bxf6 12.b3!? Bxa1 13.Qxa1 f6 14.Be3, reckoning White has at least full compensation for the exchange.
10.Qf3 Nf6
 |
| How should White proceed? |
*****
*****
*****
*****
11.e5?
There is no need for this extravagance - White is better after the simple 11.Bb3, eg 11....0-0 12.Rad1 with Bc1 to come.
11...Qxe5 12.Rfe1 Qh5
Even stronger, according to the engines, is 12...Qd4.
13.Qe3?
The engines reckon White should settle for exchanging queens followed by trapping the black queen's rook with Bb3
13...0-0 14.h3!?
The engines slightly prefer 14.Bb3, but then comes 14...Ng4 15.Qg3 Be5, while 14.Qxe7? fails to 14...Rxc2.
14...Rxc2 15.Bb3 Rxd2 16.Qxd2 d5?!
This is good enough for a large advantage, but almost certainly better is the simple 16...e6.
17.Rxe7 Ne4 18.Nxe4 Bxa1 19.Ng3 Qh4 20.Rxa7 Qf6
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| The smoke has cleared - Black is 'only' a pawn up but has the bishop-pair and powerful, connected passed pawns |
*****
*****
*****
*****
21.Qe2 h5 22.Ra4 Bd7 23.Qd2 Be5 24.Ra6 Qe7 25.Ra7 Qd6 26.Nf1 Re8 27.Bd1
*****
*****
*****
*****
*****
27...Bf4??
*****
*****
*****
*****
*****
28.Qc3??
As MR pointed out after the game, White has 28.Rxd7, when 28...Qxd7 29.Qxf4 is dead-equal, according to Stockfish14.1, although Komodo12.1.1 gives Black a tiny edge.
The game finished:
28...d4 29.Qa5 Be6 30.Ra8 Rxa8 31.Qxa8 Kg7 32.Bf3 Bd5 33.Bxd5 Qxd5 34.Qa4 c5 35.g3 Bh6 36.Qc2 c4 37.Nd2 Bxd2 38.Qxd2 Qe4 39.f3 Qe3+ 40.Qxe3 dxe3 41.Kf1 c3 42.Ke2 c2 0-1
Lewisham 2 won the match 6.5-1.5.
Lewisham 2 won the match 6.5-1.5.
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