BEAU CHESS - the post-work workings-out of a chess amateur: Self-pin

Friday, 1 May 2026

League Chess

PLAYED on board one (of five) for Battersea against Hammersmith in Central London League Division Two last night.

Spanton (1938) - Tony Niccoli (2285)

Spanish Exchange

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.Nc3 f6 6.d4 exd4 7.Qxd4 Qxd4 8.Nxd4 Bd7 9.Be3 0-0-0

This position occurs 279 times in ChessBase's 2026 Mega database

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10.f3

Long castling was played in 222 of those games.

10...Ne7 11.Rd1

Ruling out castling on the queenside - in fact the plan can be to not castle at all.

11...Ng6 12.Kf2!?

Emanuel Lasker often developed his king this way in the Exchange Variation of the Spanish, the idea being the king is well-placed on f2 to later assist an advance of White's pawn-majority. On the other hand, the absence of the king from c1/b1 leaves the white queenside pawns more vulnerable.

12...Ne5 13.Nb3!?

This may be a novelty, and is not liked by Stockfish17.1 or Dragon1. They suggest 13.h4 or 13.b3.

13...b6 14.h3

Preparing f4, without allowing a black piece to land on g4.

14...Nc4 15.Bc1 Bd6 16.f4?!

But, played this early, the move is probably too loosening.

How should Black exploit White's last?

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16...Rde8

Black can seize the initiative with 16...g5!?, when 17.fxg5?! fxg5 gives White an isolani and an exposed king. Better is 17.f5, and the engines suggest 17.Nd4!?, the idea being to meet 17...gxf4 with 18.b3, when 18...Ne5 allows 19.Bxf4, after the engines still much prefer Black, but they reckon even better is 18...Bb4!?, when 19.bxc4 Bxc3 20.Bxf4 equalises the number of pawns, but both 20...Rhe8 and 20...c5 leave Black much better.

17.Rhe1 Bb4 18.Rd3 Re7 19.a3 Bd6 20.Nd2 Bc5+ 21.Kf3 Be6?

Black should swop knights.

How can White exploit Black's last?

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22.Nxc4?

Missing 22.Na4!?, after which Black loses the bishop-pair, and contracts tripled c pawns, as 22...Bd6? is met by 23.Nxb6!

22...Bxc4 23.Rdd1 Rhe8 24.Be3 Bd6

Swopping bishops may be better.
25.Bxb6 Bxa3

How should White proceed?

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26.bxa3?

This is possibly the worst of the plausible choices. Best is probably the engines' 26.Bxc7!, when 26...Bxb2 27.Ba5!? more-or-less obliges Black to give up the bishop-pair with 27...Bxc3, after which the engines reckon White is at least slightly better. If Black tries to preserve the dark-square bishop with 27...Ba3?, White has 28.Na4!, with very strong play as Black does not seem to have a good answer to the threat of Nb6+, forking king and light-square bishop, eg 28...Bb5 29.Nb6+ Kb7 30.c4.

26...cxb6

Black has lost the bishop-pair, but straightened the queenside pawns, so who stands better?

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No one, according to the engines.

27.Rd6 Kc7 28.Red1 Bf7 29.R6d4 Be6!? 30.g4 a5 31.Ne2 Rd7!?
The engines reckon an exchange of rooks favours White.

32.f5!?

The engines prefer 32.Rxd7+ Bxd7, and now 33.f5!?

32...Rxd4 33.Rxd4 Bf7 34.Nf4 b5

Black has a slight edge after 34...g5!? or 34...c5, according to the engines.

35.Nd3 Rd8 36.Ke3 Ba2

Possibly better is 36...Rxd4 37.Kxd4 Kd6, with what the engines agree is complete equality.

37.Nc5 Rd6?

White has at most a slight edge after 37...Rxd4, according to the engines.

38.Rxd6 Kxd6 39.Nb7+ Ke5 40.Nxa5 c5 41.Nb3 Kd6 42.Nd2 Ke5 43.Nf3+ Kd6 44.h4 Bb1 45.Kd3!? b4 46.axb4 cxb4

White to play and maintain a winning position

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47.g5?

The simple 47.Nd2 snuffs out Black's counterplay, and, after 47...Ba2, the time is right to play 48.g5.

47...b3

Exploiting White's self-pin at move 45.

48.Nd4

An only-move.

48...bxc2

White to play and draw

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49.Nxc2?

White holds with 49.Kd2, eg 49...c1=Q+ 50.Kxc1 Bxe4 51.Kd2 Ke5 52.Ne6, or 49...Ke5 50.Ne6.

Black to play and win

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49...Ke5

But not 49...Bxc2+?? 50.Kxc2 Ke5 51.Kd3 Kf4, as 52.gxf6 gxf6 53.Kd4 wins for White, as does 51...fxg5 52.hxg5 Kf4 53.f6.

50.gxf6 gxf6 51.h5 Bxc2+ 52.Kxc2 Kxe4 0-1

TN: "Sorry."

Me: "It was my fault."

Hammersmith won the match 4-1.

My Battersea Season 2025-6

Date Event Colour Rating Opp's Rating Score Season's Perf

16/9/25 CLL W 1936 1952 0 1552

18/9/25 CLL W 1936 1797 = 1675

16/10/25 CLL W 1889 2047 0 1665

23/10/25 CLL B 1889 1823 1 1805

18/11/25 LL W 1891 1980 = 1840

20/11/25 CLL W 1891 1866 1 1911

25/11/25 BCC B 1891 1817 1 1955

9/12/25 LL W 1904 1982 1 2008

16/12/25 LL B 1904 2046 0 1968

18/12/25 CLL B 1904 2066 1 2018

6/1/26 CLL W 1929 2150 = 2066

7/1/26 LL W 1929 1971 = 2058

8/1/26 CLL B 1929 1800? = 2038

13/1/26 LL B 1929 2035 1 2067

27/1/26 LL B 1929 2089 0 2041

29/1/26 CLL B 1929 1882 = 2031

3/2/26 BCC W 1928 1836 1 2043

12/2/26 CDL B 1928 1890 1 2057

25/2/26 LL B 1928 1863 = 2047

26/2/26 CLL B 1928 2015 0 2025

3/3/26 CDL B 1914 1976 1 2043

24/3/26 BCC W 1921 1780 1 2049

26/3/26 CLL B 1921 1942 = 2045

31/3/26 CDL B 1921 2091 0 2030

7/4/26 BCC B 1938 1505* 1 2030

9/4/26 CLL W 1938 2012 = 2029

30/4/26 CLL W 1938 2285 0 2023

CLL: Central London League

LL: London League

BCC: Battersea club championship

CDL: Croydon & District League

I also have a win-by-default in the Central London League

*A win against a 1505 counts as a 1905 performance, so I have excluded this game from calculating my season's performance as it would lower my average despite me winning.

Friday, 5 July 2019

A Caro-Kann Tabiya

PLAYED last night in the fourth round of the Pimlico Summer open section, which is being held over five consecutive Thursday evenings.
Spanton (171) - Anders Lundback (162)
Caro-Kann Classical
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6
This is overwhelmingly the most-popular move in ChessBase's 2019 Mega database.
Grandmaster Joe Gallagher in Starting Out: The Caro-Kann (Everyman Chess, 2002) says 10...e6, 10...Ngf6 and 10...Qc7 are "interchangeable if Black is going to castle queenside, but if he wants to remain flexible on the future home of his king, then 10...e6 and 10...Ngf6 are the better options."
Put like this, it is hard to understand why any strong player would choose 10...Qc7, but it has been a frequent choice of Epishin and has also been played by Korchnoi and Khalifman.
11.Bd2
The most-popular move, but inaccurate, according to Gallagher. He explains: "This move is considered slightly inferior to Bf4 because Black has an easier time in the lines where he castles kingside. The point is that with the bishop on d2, White will have to waste time with Qe2 if he wants to play Ne5, whereas with the bishop on f4 it is possible to play this at once."
What Gallagher means, I believe, is that with the bishop on d2, White would not want to play Ne5 because, after ...Nxe5, dxe5 Qxd3, the queens come off, White gets a backward d pawn and Black gets the d5 square as an outpost for his king's knight. But with the bishop on f4, …Nxe5 can be met by Bxe5.
11...Ngf6 12.0-0-0 Be7

A popular tabiya in the Caro-Kann Classical

There are more than 3,500 games with this position in Mega19. Most popular is 13.Kb1, although Gallagher suggests it is "too slow to cause Black difficulties." In Starting Out he uses a game that saw 13.Qe2 - "White prepares to play Ne5" - the third-commonest move. Other choices by strong players include 13.c4, 13.Rhe1, 13.Rde1 and 13.Nf1!? My choice is second-most popular with almost 1,300 games.
13.Ne4 Nxe4 14.Qxe4 Nf6 15.Qe2 Qd5
Gallagher gives this an exclamation mark. Black's queen attacks a2 and adds to the pressure on h5.
16.c4 Qe4 17.Rhe1!?
Gallagher says "17.Be3 b5! is very dangerous for White," while 17.Qxe4 Nxe4 18.Be3 "is no longer considered a realistic winning attempt."
17...Qxe2 18.Rxe2 0-0-0
The critical and seemingly good 18...Nxh5! was tried in Tim Dean (-) - Zhichao Li (2028), Edmonton Closed 2005. There followed 19.d5 cxd5 20.cxd5 0-0 21.dxe6 fxe6 22.Rxe6 Rac8+ 23.Kb1 Bc5, with an equal position (but 0-1, 49 moves).
19.Ba5 b6 20.Bc3 Bd6
20...Nxh5?! 21.Ne5.
21.Ne5 Bxe5 22.Rxe5 Ng4 23.Re2 Nf6
A tacit offer of a draw.
24.g4 Rd7
If 24...Nxg4, then 25.Rg1 Nf6 26.Rxg7 Nxh5 27.Rxf7 Rd7 28.Rxd7 Kxd7 29.d5 with advantage. This line is pretty forcing, but Black could try 26...Rh7 27.Rxh7 Nxh7, although White's resulting rook-and-bishop combo has good chances of outplaying Black's rook-and-knight.
25.f3 Rhd8 26.Rde1

How would you assess this position, and how should Black proceed?

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White's space advantage and superior minor piece (there is a lot of pawns on the board, but the knight is unlikely to find a good outpost) give an advantage - worth from 0.4 pawns (Komodo9) to about 0.75 pawns (Stockfish10). But much manoeuvring is in prospect and there is no need for Black to panic.
26...c5?
A mistaken bid for freedom.
27.dxc5 bxc5 28.Re5 Rd3
The engines suggest Black's best may be to sac the exchange by 28...Rc7!? 29.Ba5 Rd4 30.Bxc7 Rxc4+ 31.Kb1 Kxc7, but then 32.Rc1 forces an exchange of rooks, leaving Black with a pretty hopeless knight-versus-rook ending.
29.Rxc5+ Kb7 30.Ba5 R8d7 31.Rb5+
The engines want White to play the passive 31.Rf1!? I rejected it because of 31...Re3, missing that Black is hardly in a position to double rooks on White's third rank as White replies Rc7+.
31...Ka6 32.Bc3 Rxf3 33.Ree5 Rf1+ 34.Be1??
Self-pinning is very rarely a good idea, and here it is catastrophic. I rejected the winning 34.Kc2 because, after 34...Rf2+ 35.Kb3 Rb7, White's attack has come to an end. This is true - up to a point. White's queenside attack is over, but White can switch to the kingside with 36.g5, eg 36...hxg5 37.Rxg5 Rxb5 38.cxb5+ Kb7, when the engines continue 39.Bxf6 gxf6 40.Rg7 with a large advantage.
34...Nxg4 35.Re2
A humiliating retreat, but the only way to stay in the game as 35.Re4??, for example, hoping for 35...Nf6?? 37.Re3, fails to 35...Nf2.
35...Rc7?!
The engines prefer an immediate 35...Rb7, with a small edge to Black after 36.Ra5+ Kb6. The drawback of the text will be explained later.
36.b3 Rb7
There is a better chance for a tiny edge, according to the engines, with 36...Nf6 or the pin-breaking 36...Rf5!?
37.Ra5+ Kb6 38.Kc2?!
More accurate is 38.Kb2. The point is that if Black proceeds with 38...Rf3, which the engines recommend after the text, White has 39.Rg2.
38...a6
The engines prefer 38...Rf3, when 39.Rg2?? now loses to 39...Ne3+. This seems to be why the engines did not like Black's 35th - it gave White a tempo to free the b2 square for his king!
39.c5+ Ka7 40.Bc3 e5?!
40...Rb5 41.Ra4 Nf6 42.Rc4 is dead equal, according to the engines, despite Black's pawn-plus.
41.b4?!
The simple 41.Bxe5 Nxe5 (not 41...Re7?? 42.Bb8+) 42.Rxe5 is slightly better for White.
41...Rf5?
The rook-and-pawn ending after 41...Rb5 42.Rxb5 axb5 43.Bxe5 Nxe5 44.Rxe5 is even, according to the engines, but looks easier for White to play.
Also reasonable was 41...f6, although White remains more active thanks to his queenside play.
42.c6?
Better was 42.Rd2, threatening Rd6, eg 42...Rf6 43.a4 (threatening 44.b5) Rc7 44.Kb3, with strong pressure.
42...Rc7
Black may also hold with 42...Rb5!?, the engines giving 43.c7 Kb7 44.Rxa6 Kxc7 45.a4 Rd5 46.Ra7+ Kb8! (better than advancing the king, apparently) 47.Re7, with a position hard to assess (the engines vary from preferring White to reckoning Black has equality).
43.b5 Kb6 44.bxa6 Ka7?
Black is in trouble after this. The engines give best play as 44...Rf6 45.Ra4 Rfxc6 46.a7! Rxa7 (46...Rxc3?! costs Black the exchange, although he does get two pawns for it) 47.Rb4+ Kc7 48.Rxg4 Rxa2+ 49.Kd1 Rxe2 50.Ba5+ Kd7 51.Kxe2, when White has rook, bishop and pawn versus rook and four pawns - equal, according to the engines.
45.Re4 Nf6 46.Rc4 Rxh5
White is also winning after 46...Rf4 47.Rxf4 exf4 48.Bd4+ Ka8 49.Bxf6 gxf6 50.Rc5.
47.Bxe5 Rxe5
Not much better is 47...Rc8, eg 48.Kb3 Rh3+ 49.Ka4 Rd3 50.Rb5 h5 (Black has no useful moves) 51.Bb8+!
48.Rxe5 Kxa6 49.Re3 Kb6 50.Rb3+ Ka5 51.Rb7 Ne8 52.Kb3 1-0