| table | TNr | name | elo | pts | - | TNr | name | elo | pts | (w) | - | (b) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 14 | Bigott,Martin | 1747 | 5.5 | - | 1 | Spanton,Tim R | 1912 | 4.5 | - | ||
| 2 | 12 | Abed,David | 1754 | 5 | - | 6 | Klein,Reinhard | 1874 | 4 | - | ||
| 3 | 4 | Eschle,Hubert | 1876 | 4 | - | 41 | Fresow,Boris | 0 | 4 | - | ||
| 4 | 20 | Steuer,Christopher | 1656 | 4 | - | 13 | Bail,Leonhard | 1759 | 4 | - |
Martin Bigott (1747) - Spanton (1912)
Queen's Gambit Declined with Bf4
1.d4 d5 2.Nf3 e6 3.c4 Nf6 4.Nc3 Be7 5.Bf4 0-0 6.e3 c5 7.dxc5 Bxc5
If 7...Na6!?, intending ...Nxc5, my main analysis engines Stockfish14.1 and Komodo12.1.1 give 8.cxd5 Nxd5 9.Nxd5 exd5 10.Bxa6 Qa5+ 11.b4!? Qxa6 12.Nd4, when Black's bishop-pair gives some compensation for being a pawn down.
8.Be2!?
The main moves in ChessBase's 2022 Mega database are 8.Qc2 and 8.a3.
8...Nc6 9.0-0
MB offered a draw.
9...Re8!?
9...dxc4 and 9...a6 are the main moves in Mega22.
10.Bg5 Be7?!
Probably better is 10...dxc4, when the engines reckon White has a slight edge..
11.Bxf6 Bxf6 12.cxd5 exd5 13.Qxd5 Be6!?
13...Qxd5 14.Nxd5 Bxb2 15.Rab1 Be5 16.Nxe5 Rxe5 gives White the upper hand, according to the engines.
14.Qxd8 Rxd8 15.a3 Na5 16.Nd4?!
Giving back the pawn to simplify, and hopefully hold on for a draw. Best, according to the engines, is 16.Rfd1.
16...Bxd4 17.exd4 Nb3 18.Rad1 Nxd4 19.Bf3?!
Seeking more simplification, but it comes at some cost.
19...Nxf3+ 20.gxf3 Bb3 21.Rxd8+ Rxd8 22.Rf1 Ke8 23.Kg2
 |
| How should Black proceed? |
*****
*****
*****
*****
23...Rd6
I rejected 23...Rd2 because of 24.Re2, but the engines reckon 24...Rxe2 25.Nxe2 Ke7 is promising for Black (winning, according to Stockfish14.1; slightly better, according to Komodo12.1.1). However they also reckon 24.Re4!? Rxb2 25.Rb4 is dead-equal, albeit preferring Black after 24...b6 or 24...Be6.
24.Re4 Be6 25.f4?!
This seems weakening. Perhaps best is 25.Rb4 b6 26.Nb5 Rd7, which the engines reckon favours Black.
25...Rc6
The engines like 25...Bd7!?, eg 26.Re3 Bc6+ 27.f3 Rd2+ 28.Re2 Rd3 29.Rf2 Ke7, when Black is more active.
26.Kg3 Rb6 27.Re2 Bc4 28.Re4!?
The more modest 28.Rd2 may be better.
28...Rg6+
The engines' 28...Bf1!? could be best.
29.Kf3 Bf1
 |
| How should White proceed? |
*****
*****
*****
*****
30.f5!
Giving up a pawn, but only temporarily.
30...Bg2+ 31.Kf4 Bxe4 32.fxg6 Bxg6
Black has won a pawn, but after ...
33.Nb5 a6 34.Nd6 b5 35.b4 Ke7 36.Nb7 Ke6 37.Nc5+ Kd5 38.Nxa6
... White has won it back.
 |
| How would you assess this ending? |
*****
*****
*****
*****
Pawns are equal, but Black has bishop versus knight in an ending with rival pawn-majorities. Black also has the slightly more active king. Nevertheless the engines reckon the ending is dead-equal.
38...Bd3 39.Nc5 Bf1
39...Bc2 prevents 40.a4, but White has 40.Na6, and if 40...Kc4 then 41.Nc7.
40.a4 bxa4 41.Nxa4 Kc4 42.Nc5 Kxb4 43.Ne4 f6
There is no way for Black to get an advantage, according to the engines.
44.Nd6 Bd3 45.Ne8 Kc5 46.Nxg7 Kd5 47.Nf5
MB offered a draw.
47...Ke6 48.Ne3 h6 49.Ng4 h5 50.Ne3 Bg6 51.h4 Bd3 52.Nd1 Kd5 53.Ne3+ Kd4 54.Nf5+ Kd5 55.Ng7 Bg6 56.Nxh5!? ½–½
U2000 leaderboard pairings for round eight:
| table | TNr | name | elo | pts | - | TNr | name | elo | pts | (w) | - | (b) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Spanton,Tim R | 1912 | 5 | - | 12 | Abed,David | 1754 | 6 | - | ||
| 2 | 13 | Bail,Leonhard | 1759 | 5 | - | 14 | Bigott,Martin | 1747 | 6 | - | ||
| 3 | 22 | Klein,Robert | 0 | 4.5 | - | 4 | Eschle,Hubert | 1876 | 4.5 | - | ||
| 4 | 41 | Fresow,Boris | 0 | 4.5 | - | 9 | Litfin,Boris | 1818 | 4.5 | - | ||
| 5 | 16 | Kampfmeier,Dirk | 1733 | 4 | - | 11 | Kopischke,Maik | 1800 | 4.5 | - |
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