Bb5(+) Sicilian
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7 Qxd7 5.0-0 Nc6 6.Qe2
The mainline in ChessBase's 2022 Mega database runs 6.c3 Nf6 7.Re1 e6 8.d4 cxd4 9.cxd4 d5 10.e5 Ne4 11.Nbd2 Nxd2 12.Bxd2 with a completely equal position, according to Stockfish15 and Komodo13.02.
6...Nf6 7.Rd1 g5!?
This extravagant-looking move is the top choice of the engines.
8.c3
Not 8.Nxg5? as 8...Nd4 is very strong, eg 9.Qd3 Qg4 10.Nf3 Rg8 11.Ne1 Qxd1.
8...g4 9.Nh4 0-0-0!?
The mainline in Mega22, albeit from just 54 games, runs 9...Qe6 10.d3 d5 with an equal position, according to the engines.
10.d4 d5!?
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| How should White proceed? |
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11.exd5?!
All seven games in Mega22 saw 11.e5 Ne4, and now the engines like 12.Nd2!?, which was played in Rauf Mamedov (2662) - Leinier Domínguez Pérez (2723), Russian Team Championship (Loo, Sochi) 2013, which continued 12...Nxd2 13.Bxd2 cxd4 14.b4!? d3 15.Qxd3 Bg7 16.Bf4 Nxe5 17.Qe3 Nc4 18.Qxa7 e5 19.Bg5 f6 20.Be3 with an unbalanced position but one which the engines reckon is completely equal (½–½, 27 moves).
11...Nxd5 12.g3?!
Slow. Probably better is 12.Na3 cxd4 13.cxd4 but the engines agree Black has a large advantage after 13...e5!? Also possible is 12.c4, eg 12...Ndb4 13.d5, but the engines much prefer Black after 13...Nd4.
12...cxd4 13.cxd4 h5?!
This does not really achieve anything and so wastes time. The engines like 13...e5!?, and if 14.dxe5 then 14...Nf4 with a big attack.
14.Nc3 e6 15.Nxd5 Qxd5 16.Be3 Bg7 17.Rac1 Kb8 18.Rc5?!
A dubious pawn sacrifice. The engines give 18.Rc4, preferring Black after, for example, 18...Ka8!?
18...Qxa2 19.Qb5?!
The engines do not like this, but their 19.d5!? Rxd5 20.Rcxd5 exd5 21.Nf5 Be5 leaves White with not much for two pawns.
19...Nxd4 20.Qf1!?
This is best, according to the engines, but hardly what White wants to play when behind on material.
20...Qa6!?
Black gives up some of his advantage to get queens off the board and reduce the chances of a white combinational attack.
21.Qxa6 bxa6 22.Rd2 Bf6 23.Bf4+ Ka8 24.Be5 Bxe5 25.Rxe5 f6 26.Ra5 Kb7
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| The position has stabilised and Black remains two pawns up, albeit with doubled a pawns |
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27.Kf1 e5 28.Rd1 Nb3 29.Rxd8 Rxd8 30.Ra4 a5 31.Ra3 Rd3 32.Ke1 Kb6 33.Nf5 Nc5 34.Ng7 Rxa3 35.bxa3 Kb5 36.Nxh5 Nd7
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| White is now only one pawn down, and Black's extra pawn is doubled, but a3 cannot be saved and so the game is lost |
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37.f3!?
Desperation.
37...gxf3 38.h4 Ka4 39.Ng7 Nf8 40.h5 Kxa3 41.h6 a4 42.g4 Kb2 43.Ne6 Nh7 0-1
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