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Control of a Useful Open File
The Doubled Rooks (1 of 2)

Point Count Chess, NO. 160A to NO. 160B, p229-230
Gligoric v. Rabar, 1955

In this example, two files become fully Open (c & e). However, the c-file is only Open temporarily, before White semi-closes it, to give Black a Half-open c-file.

The "useful Open file," in this case, is the e-file, as it's closest to the position of the two adverse Kings, which have both Castled Kingside. The Open e-file is the one that both sides should battle to Control.

Beneath the ChessFlash viewer, you'll find my analysis of the two positions featured in Point Count Chess:
  1. PCC, p.229, No. 160A, after 11...exd5
  2. PCC, p.230, No. 160B, after 18.Rae1
  3. Result of the Doubled Rooks (1 of 2).
  4. Summary of the Doubled Rooks (1 of 2).
  5. PGN

The Doubled Rooks (1 of 2)
My Analysis

Position #2, My Analysis
PCC, p.229, No. 160A, after 11...exd5

After: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 b6 7.O-O Bb7 8.Bd2 cxd4 9.exd4 d5 10.cxd5 Bxc3 11.bxc3 exd5

Point Count Chess - IE - Diagram 160A - Page 229
After: 11...exd5

1. Creation of the Half-open e-file

White gains the benefit of the Half-open e-file, during the development phase ...

Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 8.Bd2
Control of a Useful Open File,
Creation of the Half-open e-file,
After 8.Bd2
After 8.Bd2, development reaches a critical point, which includes the creation of two opposing Pawn Chains, which meet at d4 & c5.
Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 8...cxd4 9.exd4
Control of a Useful Open File,
Creation of the Half-open e-file,
After 8...cxd4 9.exd4
After 8...cxd4 9.exd4, White gains the Half-open e-file, after Black initiates the exchange of Pawns on d4, trading his c-Pawn, for White's e-Pawn (8...c5xd4 9.e3xd4).

It's still early in the expansion phase, but White's former e-Pawn, now at d4, creates a support point for White's e5-Outpost, which White goes on to occupy, with his King Knight (14.Nf3-e5), as he builds his Kingside Attack through what will be the Open e-file.

2. Creation of the temporarily Open c-file

Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 9...d5
Control of a Useful Open File,
Creation of the temporary
Open c-file, After 9...d5
After 9...d5, the advance of Black's d-Pawn (9...d7-d5) provokes White into creating the Open c-file, with a Pawn exchange, on d5.
Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 10.cxd5
Control of a Useful Open File,
Creation of the temporary
Open c-file, After 10.cxd5
After 10.cxd5, White captures Black's d5-Pawn (10.c4xd5), to Open the c-file.
Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 10...Bxc3 11.bxc3
Control of a Useful Open File,
Open c-file becomes Black's Half-open file, After 10...Bxc3 11.bxc3
After 10...Bxc3 11.bxc3, Black refrains from immediately opening the e-file, in order to trade his dark-Bishop (10...Bb4xc3) for White's Queen Knight.

White's b-Pawn completes the trade (11.b2xc3), to gain the benefit of a Half-open b-file, and to semi-close the c-file, which becomes a Half-open File, for Black's benefit.

The obvious weakness, is White also gains an Isolated a-Pawn, in the process. However, as White goes on to win this game, it can be noted as a justified weakness, for the benefit of his Kingside attack, which involves gaining and then using the "useful" Open e-file.

3. Creation of the Open e-file (the "useful Open file")

Point Count Chess - IE - Diagram 160A - Control of a Useful Open File, After 11...exd5
Control of a Useful Open File,
Creation of the "useful" Open
e-file, After 11...exd5
After 11...exd5, the e-file becomes fully Open, as Black finally completes the Pawn exchange on d5 (11...e6xd5).

White takes on a further Weak Pawn structure, as his c3-Pawn is now Backward ...

H&M-S say: "After connecting his rooks, Black can bring pressure on White's backward queen bishop pawn (c-Pawn)."

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Position #2, My Analysis
PCC, p.230, No. 160B, after 18.Rae1

After: 12.Bg5 Qd6 13.Bxf6 Qxf6 14.Ne5 Qd6 15.Qh5 g6 16.Qh6 Ba6 17.Bxa6 Nxa6 18.Rae1

Point Count Chess - IE - Diagram 160B - Page 230
After: 18.Rae1

Following the creation of the Open e-file, the next phase, for White, involves expanding his army out toward Black's Kingside, as well as removing threats that could derail his White's Kingside attack. Everything that evolves takes place through the "useful" Open e-file ...

Point Count Chess - IE - Diagram 160B - Control of a Useful Open File, After 12.Bg5 to 13...Qxf6
Control of a Useful Open File,
Expanding through the Open e-file,
After 12.Bg5 to 13...Qxf6
After 12.Bg5 to 13...Qxf6, White trades his light-Bishop for Black's King Knight (12.Bd2-g5 » 13.Bg5xf6).

Black's Queen completing the trade (13...Qd6xf6), so as not to unnecessarily weaken the Kingside Pawn structure (via 13...g7xf6).

From White's perspective, Black's Nf6 had to go, as it guarded the h5-square, preventing White's Queen going there, to force the creation of the h6-Hole.

So, that was worth White trading his light-Bishop.

Point Count Chess - IE - Diagram 160B - Control of a Useful Open File, After 14.Ne5
Control of a Useful Open File,
Expanding through the Open e-file,
After 14.Ne5
After 14.Ne5, White King Knight now occupies his e5-Outpost (14.Nf3-e5). Black's Queen, being more valuable, is too vulnerable to remove White's Outpost Ne5.

In addition to gaining a useful spot close to Black's King, White's Ne5 also guards the d7-square, which prevents Black's Nb8 from coming across to help defend against White's invasion.
Point Count Chess - IE - Diagram 160B - Control of a Useful Open File, After 15.Qh5 g6 16.Qh6
Control of a Useful Open File,
Expanding through the Open e-file,
After 15.Qh5 g6 16.Qh6
After 15.Qh5 g6 16.Qh6, the threat from White's Queen, at h5 (15.Qd1-h5), forces Black to try and defend his Kingside position with his g-Pawn (15...g7-g6).

This only serves to create the h6-Hole, which White immediately occupies with his Queen (16.Qh5-h6). It also shows how vital it was, for White, to have exchanged Black's Nf6 off the board ...

Otherwise, Black would have had no need to weaken his Kingside Pawn structure.
Point Count Chess - IE - Diagram 160B - Control of a Useful Open File, After 16...Ba6 17.Bxa6 Nxa6
Control of a Useful Open File,
Expanding through the Open e-file,
After 16...Ba6 17.Bxa6 Nxa6
After 16...Ba6 17.Bxa6 Nxa6, there is an exchange of light-Bishops. Black provokes it (16...Bc8-a6), and White accepts (17.Bd3xa6).

Black's Knight is there to complete the exchange (17...Nb8xa6).

Next comes the result, as White mobilizes his Rooks, to take Control of the useful Open e-file ...


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The Result of the Doubled Rooks (1 of 2)...

Point Count Chess - IE - Diagram 160A to 160B - Control of a Useful Open File, The Doubled Pawns (1 of 2), After 18.Rae1 and 19.Re3
(RESULT) Control of a Useful Open File, The Doubled Pawns (1 of 2),
After 18.Rae1 » 19.Re3
After 18.Rae1 » 19.Re3, White brings his Queen Rook across to the Open e-file (18.Ra1-e1), then lifts it up as far as it can safely go, at present (19.Re1-e3).
Point Count Chess - IE - Diagram 160A to 160B - Control of a Useful Open File, The Doubled Pawns (1 of 2), After 20.Rfe1
(RESULT) Control of a Useful Open File, The Doubled Pawns (1 of 2),
After 20.Rfe1
After 20.Rfe1, White's King Rook re-connects with the Queen Rook, forming a Battery along the Open e-file.
Point Count Chess - IE - Diagram 160A to 160B - Control of a Useful Open File, The Doubled Pawns (1 of 2), After 20...f6 21.Ng4
(RESULT) Control of a Useful Open File, The Doubled Pawns (1 of 2),
After 20...f6 21.Ng4
After 20...f6 21.Ng4, Black's f-Pawn, forcing White's Knight off the e5-Outpost (20...f7-f6 21.Ne5-g4) only serves to unleash the full power of White's Rook Battery, along the Open e-file.
Point Count Chess - IE - Diagram 160A to 160B - Control of a Useful Open File, The Doubled Pawns (1 of 2), After 21...Qd8 22.Re8
(RESULT) Control of a Useful Open File, The Doubled Pawns (1 of 2),
After 21...Qd8 22.Re8
After 21...Qd8 22.Re8, Black's Queen returns to the back rank (21...Qd6-d8), and White's leading Rook infiltrates (22.Re3-e8) ...

That Fork leads to an exchange of Rooks (22...Rf8xe8 23.Re1xe8+) and White's game-winning position, following a Royal Fork, by White's Ng4 (23...Qd8xe8 24.Ng4xf6+), winning Black's Queen.

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Summary of the Doubled Rooks (1 of 2)...

  1. Opening development leads to the formation of the two opposing Pawn Chains (after 8.Bc1-d2), and subsequent expansion leads to the creation of White's Half-open e-file (after 9.e3xd4).

  2. The c-file becomes fully Open, albeit temporarily, as an exchange of Black's dark-Bishop, for White's Queen Knight (10...Bb4xc3) leads to White's b-Pawn giving Black the Half-open c-file (11.b2xc3). White also gains a Half-open b-file, and an Isolated a-Pawn.

  3. The "useful Open e-file" created, as Black's e-Pawn captures White's d5-Pawn (11...e6xd5).

  4. White expands his army out of the "useful" Open e-file, towards Black's Kingside (12.Bc1-g5 to 22.Re3-e8).

  5. During that period of expansion through the Open e-file (No.4), White makes sure to trade Black's Nf6 off the board (12.Bd2-g5 » 13.Bg5xf6 Qd6xf6), to enable his Queen to launch the Kingside attack (15.Qd1-h5) that leads to the creation of the h6-Hole (15...g7-g6), and the occupation of it by White's Queen (16.Qh5-h6).

  6. During that period of expansion through the Open e-file (No.4), White also occupies his e5-Outpost, with his King Knight (14.Nf3-e5). While it's later forced off the e5-Outpost (20...f7-f6), White's Knight relocates to a superior position (21.Ne5-g4), from where it launches a game winning attack, with a Royal Fork, which wins Black's Queen (24.Ng4xf6+).

  7. During that period of expansion through the Open e-file (No.4), White also forms his two Rooks into a Battery, on the "useful" Open e-file (18.Ra1-e1 » 19.Re1-e3, and 20.Rf1-e1).

  8. The lead Rook, in White's e-file Battery, is subsequently involved in a Rook exchange (22.Re3-e8 22...Rf8xe8 23.Re1xe8+), which results in Black's Queen being Deflected into position (23...Qd8xe8), for White's game winning Royal Fork (No.6).

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PGN

[Event "YUG-ch"]
[Site "Novi Sad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1-0"]
[White "Svetozar Gligoric"]
[Black "Braslav Rabar"]
[ECO "E47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 b6 7.O-O Bb7 8.Bd2 cxd4 9.exd4 d5 10.cxd5 Bxc3 11.bxc3 exd5 {PCC p.229 No.160A} 12.Bg5 Qd6 13.Bxf6 Qxf6 14.Ne5 Qd6 15.Qh5 g6 16.Qh6 Ba6 17.Bxa6 Nxa6 18.Rae1 {PCC p.230 No.160B} Rac8 19.Re3 Rc7 20.Rfe1 f6 21.Ng4 Qd8 22.Re8 Rxe8 23.Rxe8+ Qxe8 24.Nxf6+ Kf7 25.Nxe8 Kxe8 26.h4 Rf7 27.h5 gxh5 28.Qe6+ 1-0

End.

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