1.Nc3
1.Nc3 d5 2.d4 c5 3.e4!?
White is playing an Albin Countergambit, with colours reversed and an extra tempo (Nc3).
3...dxe4 4.d5 Nf6 5.Be3
Stockfish15 and Komodo13.02 like 5.Nge2, and if 5...e6 then 6.Bg5 or 6.Nf4.
5...Nbd7 6.Nge2 g6 7.Ng3 Bg7 8.Rb1?!
White should probably get on with development, eg 8.Qd2.
8...0-0 9.Ngxe4 b6
The engines give 9...Nxe4 10.Nxe4 Qa5+ 11.Bd2 Qxa2 12.c4 Nf6, when Black is a good pawn up.
10.Bc4?!
The bishop is a target here. Almost certainly better is 10.Be2.
10...Nxe4 11.Nxe4 Nf6?
Better is 11...Ne5, when the engines reckon best is 12.Be2, losing a tempo on lines with 10.Be2.
12.Nxf6+ Bxf6 13.Bh6 Bg7 14.Bxg7 Kxg7 15.0-0 Qd6 16.Re1 Bb7 17.Qd3 a6 18.a4 b5!? 19.axb5 axb5 20.Bxb5 Bxd5 21.c4 Be6 22.Qc3+ Kg8 23.Rbd1 Qf4 24.Qe5 Qxe5 25.Rxe5 Rfc8
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| How would you assess this late-middlegame position? |
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White has a backward b pawn but the potential to create a passed farside pawn. The engines reckon Black has a tiny pull.
26.h3 Kf8 27.Kf1 Bf5 28.g4!? Bc2 29.Rd2 Ba4 30.Bxa4 Rxa4 31.b3 Ra3 32.Rd3 f6!? 33.Re6 Kf7 34.Rde3 Rc7 35.Kg2 Rb7 36.f3 g5 37.Kg3 h6 38.h4 gxh4+ 39.Kxh4 Raxb3 40.Rxe7+ Rxe7 41.Rxb3
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| How would you assess this rook-and-pawn ending? |
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Black has an extra pawn-island but the position is equal, according to the engines.
41...Rd7?!
Probably better is activity with 41...Re1, eg 42.Rb5 Re3 43.Kg3 Re5 44.f4 Re3+ 45.Kf2 Re4.
42.Rb5 Rc7?
Here, activity is definitely better, eg 42...Rd3 43.Kg3 f5 44.Rxc5 fxg4 45.Kxg4 is a draw, according to the Syzygy endgame tablebase.
43.Kh5 Kg7 44.f4 f5!?
Or 44...Kh7 45.Rb6 Kg7 46.f5 etc.
45.gxf5?
White has a simple win with 45.g5.
45...Kf6 46.Kg4 h5+ 47.Kxh5 Kxf5 48.Rb8??
48.Kh6 is a tablebase draw.
48...Rh7#
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