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Advanced Salient
Salient v. Reverse Salient (4 of 4)

(Not featured in Point Count Chess)
Thelen v. Treybal, 1927

In this example, White's Advanced Salient triumphs over Black's Reverse Salient.

Because the 'Van' (head) of White's Advanced Salient is centered on the e-file, it causes Black to incorporate his f-Pawn into his opposing Reverse Salient. In previous examples (No.24 and Ex.3), when White's Advanced Salient was centered on the d-file, Black's f-Pawn had been used to attack and destroy White's Advanced Salient (striking at the e4-Pawn).

Here, with the head of White's Advanced Salient on the e-file, White has to deal with the threat from the opposite side (from Black's c-Pawn). Having already sacrificed one Knight to create the Advanced Salient, White sacrifices his other Knight, to remove Black's c-Pawn, ensuring his Advanced Salient survives long enough to contribute to White's victory.

Beneath the ChessFlash viewer, you'll find my analysis of a game that features a battle between Salient v. Reverse Salient:
  1. Advanced Salient v. Reverse Salient, after 25.f4
  2. Result of the Salient v. Reverse Salient (4 of 4).
  3. Summary of the Salient v. Reverse Salient (4 of 4).
  4. PGN

Salient v. Reverse Salient (4 of 4)
My Analysis

Position #1, My Analysis
After 25.f4

After: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 h6 9.Bf4 Nh5 10.O-O Nxf4 11.exf4 dxc4 12.Bxc4 Nb6 13.Bb3 Nd5 14.Qd2 Bd7 15.Ne5 Be8 16.Nxd5 cxd5 17.Qd3 Qb6 18.Rfd1 f5 19.Rd2 Bf6 20.Qe3 a5 21.a3 Bxe5 22.fxe5 Bd7 23.Kh1 Rac8 24.Rg1 Be8 25.f4

Point Count Chess - IE - Advanced Salients (Not Featured in Point Count Chess) - Example 4
After: 25.f4

1. The Queen's Gambit Declined, leads to White's Advanced Salient at his K5 (e5).

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 1.d4 d5 2.c4 e6
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 1.d4 d5 2.c4 e6
After 1.d4 d5 2.c4 e6, we see the position of the Queen's Gambit Declined, as White plays the Queen's Gambit (1.d2-d4 d7-d5 2.c2-c4), and Black Declines the option to capture White's c-Pawn, with the development of his e-Pawn (2...e7-e6), into a Chain (f7,e6,d5).

While Black's e-Pawn is already in its position for Black's Reverse Salient, Black's original d-Pawn won't be there, as it will leave to exchange with White's c-Pawn, on c4.

It's actually Black's c-Pawn that will take an opportunity to capture across, to become part of the 'Van' of Black's Reverse Salient, that will oppose White's Advanced Salient, once created.

2. Further development that leads to White's Advanced Salient
at his K5 (e5).

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 3.Nc3 Nf6 4.Bg4 Be7
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 3.Nc3 Nf6 4.Bg4 Be7
After 3.Nc3 Nf6 4.Bg4 Be7, both sides develop a Knight and a Bishop each, but from opposite sides.

White develops both Queenside Minor Pieces (3.Nb1-c3 & 4.Bc1-g5). Note how this combined development works together, to both apply pressure to, and weaken the support of, Black's d5-Pawn (White's Nc3 applies pressure to the d5-Pawn, while his Bg5 Pins Black's Nf6, removing its support of the d5-Pawn).

Black develops both Kingside Minor Pieces (3...Ng8-f6 & 4...Bf8-e7) and is now ready to Castle Kingside.

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 5.e3
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 5.e3
After 5.e3, White's e-Pawn (5.e2-e3) begins it's interesting journey to its position at, what will be, the 'Van' of White's Advanced Salient.

To get to e5, it will capture across onto f4, momentarily forming Doubled Pawns on the f-file, but will then capture back across to get onto e5, as it completes an exchange involving White's King Knight.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 6.Nf3 and 7.Rc1
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 6.Nf3 » 7.Rc1
After 6.Nf3 » 7.Rc1, White develops two Pieces, one FOR the creation of his Advanced Salient, the other for taking advantage of the position that will result FROM the creation of his Advanced Salient.

White's King Knight (6.Ng1-f3) will be posted to the e5-Outpost, where it will wait and tempt Black into exchanging a Piece. Via f4, White's e-Pawn will complete the trade, and slot into the Advanced position of, what will be, his Advanced Salient.

White also anticipates the exchange of c-Pawns, and so develops his Queen Rook (7.Ra1-c1), so it will be left occupying and Controlling the Open File (c-file).

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 7...c6 8.Bd3
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 7...c6 8.Bd3
After 7...c6 8.Bd3, Black develops his c-Pawn (7...c7-c6), into the Chain that supports the d5-Pawn. Black's c-Pawn will actually end up capturing across onto d5, and will become part of the 'Van' of Black's Reverse Salient, opposing White's Advanced Salient.

White clears his light-Bishop (8.Bf1-d3) from the back rank, in preparation for Castling Kingside.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 8...h6 9.Bf4 Nh5 10.O-O
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 8...h6 9.Bf4 Nh5 10.O-O
After 8...h6 9.Bf4 Nh5 10.O-O, we see the short phase of play that leads to the position prior to White's e-Pawn capturing across onto f4, on its journey to e5.

It starts with Black's h-Pawn (8...h7-h6) driving back White's dark-Bishop (9.Bg5-f4), to break the Pin on his Nf6, which in turn goes after White's Bf4 (9...Nf6-h5).

Appearing to accept the loss of his dark-Bishop, White Castles Kingside (10.O-O) ...

But, of course, White appears to have deliberately played for the imminent exchange of his Bishop, for the sake of getting his e-Pawn beyond Black's d5-Pawn, onto the target e5-square, which is vital for the creation of White's Advanced Salient.

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 10...Nxf4 11.exf4
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 10...Nxf4 11.exf4
After 10...Nxf4 11.exf4, White's e-Pawn makes its detour to the e5-square, and its place at the head of White's Advanced Salient, as it captures across onto f4, to complete the trade of Black's Knight, for White's dark-Bishop (10...Ng5xf4 11.e3xf4).
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 11...dxc4 12.Bxc4
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 11...dxc4 12.Bxc4
After 11...dxc4 12.Bxc4, Black's original d-Pawn leaves the d-file, to capture White's c-Pawn (11...d5xc4). Black's c6-Pawn will eventually capture across onto d5, and into part of the 'Van' of, what will be, Black's Reverse Salient.

Meanwhile, White's light-Bishop completes the trade (12.Bd3xc4).
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 12...Nb6 13.Bb3 Nd5
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 12...Nb6 13.Bb3 Nd5
After 12...Nb6 13.Bb3 Nd5, Black's Queen Knight chases away White's light-Bishop (12...Nd7-b5 13.Bc4-b3).

Black's Knight ends up on the d5-square (13...Nb6-d5). This is significant, because this leads to White exchanging his Nc3 onto d5, which in turn brings Black's c6-Pawn across onto the d5-square, for its role in Black's impending Reverse Salient. This will also cause the c-file to become Open, leaving White's Rc1 in Control of the Open File.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 14.Qd2 Bd7 15.Ne5
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 14.Qd2 Bd7 15.Ne5
After 14.Qd2 Bd7 15.Ne5, White develops his Queen (14.Qd1-d2), Connecting the Rooks, so they can work together on the c-file, when it becomes Open. White's Queen will also be in position to help defend all three Pawns that when they're in the Advanced Salient.

Following the development of Black's light-Bishop (14...Bc8-d7), White posts his Nf3 to the e5-Outpost (15.Nf3-e5), supported by the d4-Pawn.

White will allow his Ne5 to be exchanged with Black's dark-Bishop, and that's how his f4-Pawn will reach the target e5-square.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 15...Be8
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 15...Be8
After 15...Be8, Black moves his light-Bishop (15...Bd7-e8), getting it out of the way of his Qd8, so she can provide support for the c6-Pawn, which is about to capture across onto d5, after the imminent exchange of Knights.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 16.Nxd5 cxd5
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 16.Nxd5 cxd5
After 16.Nxd5 cxd5, White sacrifices his Knight (Nd5), in an exchange that helps to remove Black's c-Pawn from the c-file, getting rid of the Pawn threat that could otherwise destroy White's impending Advanced Salient.

Black's c-Pawn becomes the replacement d5-Pawn, which will be part of Black's Reverse Salient, that will oppose White's Advanced Salient.

White exchanges Knights on d5 (16.Nc3xd5). When Black's c-Pawn completes the trade (16...c6xd5), it leaves the White's Rc1 occupying the Open c-file.

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 17.Qd3 and 18.Rfd1 f5
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 17.Qd3 » 18.Rfd1 f5
After 17.Qd3 » 18.Rfd1 f5, Black gains his Reverse Salient (d5,e6,f5).

It may be the threat of Checkmate, at h7, from White's Queen (17.Qd2-d3), backed-up by the King Rook (18.Rf1-d1) and the potential Bb3-c2 support, forced Black into closing the diagonal with the advance of his f-Pawn (18...f7-f5), which completed the formation of Black's Reverse Salient.

3. The Minor Piece Exchange, that leads to White's Advanced Salient at his K5 (e5)

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 19.Rd2 to 21.a3
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 19.Rd2 to 21.a3
After 19.Rd2 to 21.a3, there's a brief spell of further play, before the exchange that puts White's f4-Pawn onto the target e5-square.

White's Rook (19.Rd1-d2) and Queen (20.Qd2-e3) are rearranged to give support for potentially vulnerable Pawns.

First, they both reinforce support for the d4-Pawn, which will become part of the Base of White's Advanced Salient, and which had been under pressure from Black's Qb6.

Second, White prepares to move his Bb3, which had been shielding the undefended b2-Pawn. White's Rd2 now ensures Black's Qb6 won't capture the b2-Pawn, if/when the Bb3 is moved elsewhere.

Notice also that Black has moved his dark-Bishop (19...Be7-f6), into position to attack White's e5-Outpost Knight. These are the two Pieces that White wants exchanged, to get his f4-Pawn onto the e5-square.

Lastly, the opposing a-Pawns are advanced, which are both left guarding the b4-square.

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 21...Bxe5 22.fxe5
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 21...Bxe5 22.fxe5
After 21...Bxe5 22.fxe5, White's e-Pawn, having made its detour via f4, captures back across, completing the Minor Piece exchange (21...Bf6xe5 22.f4xe5) on e5, so it now sits in at the 'Van' of the Advanced Chain (d4,e5), awaiting the formation of the Advanced Salient.
Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 22...Bd7 to 24...Be8
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 22...Bd7 to 24...Be8
After 22...Bd7 to 24...Be8, Black successfully forces White's Rc1 to flee from the Open c-file, which is the last act of play before White gains his Advanced Salient.

Black's light-Bishop (22...Be8-d7) Connects the Rooks, while also attacking the c8-square.

White is forced to make room for his Rook to flee to a position of safety, as White isn't prepared to meet Black's readiness to exchange Rooks ...

First, White moves his King into the corner (23.Kg1-h1); and then the Rook can come across to the dark g1-square (24.Rc1-g1).

The purpose of this is because White is about to advance his f-Pawn, which will leave White's Qe3 in a position to co-defend the Rg1, along with the Kh1. This is vital, with Black's Queen and Rooks able to form a Battery along the Open c-file, and invade en masse, with a potential Back Rank Mate on offer.

Anyway, Black ends this sequence of play with his Queen Rook now occupying the Open c-file, and Connecte with its fellow Rook (Rf8), and he returns his light-Bishop back to e8 (24...Bd7-e8), so it can guard diagonals in two directions (a4-e8 & h5-e8), both of which could be vulnerable to a White attack.

It's worth pointing out that White manages to wrestle back Control of the Open c-file, putting both his Rooks onto it, in Battery formation, before successfully invading.

Point Count Chess - IE - Example 4 - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 25.f4
The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 25.f4
After 25.f4, White gains his Advanced Salient (d4,e5,f4), with the advance of his f-Pawn (25.f2-f4).

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The Result of the Salient v. Reverse Salient (4 of 4)...

Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 25.f4 to 30.Rdc2
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 25.f4 to 30.Rdc2
After 25.f4 to 30.Rdc2, following the creation of White's Advanced Salient, Black tries to maneuver around the Salient blockage, eventually deciding to bring his Pieces to bear against the Kingside portion of the opposing Salient structures. This allows White to bring both his Rooks into Battery formation, on the Open c-file, which White now Controls.
White's focus now is to invade Black's territory, via the c-file.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 30...Qh4 to 39.Qc1
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 30...Qh4 to 39.Qc1
After 30...Qh4 to 39.Qc1, White shuffles up his Rooks, and brings his Queen onto the Open c-file, forming a massive Battery, as he seeks to whittle down Black's heavy Pieces, targeting first Black's Rd8, which cannot be defended by Black's Qb8, and will be forced to into the exchange, because of the vulnerable position of Black's Kf8.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 39...Be8 to 41...Qb7
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 39...Be8 to 41...Qb7
After 39...Be8 to 41...Qb7, White has successfully exchanged one pair of adverse Rooks, and now sits Pinning Black's Be8, having forced Black's Queen to flee from the back rank.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 42.a4
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 42.a4
After 42.a4, White pushes his a-Pawn up (42.a3-a4), to blockade Black's a-Pawn.

While White's a-Pawn also supports the Bb5, it's worth noting the Pin on Black's Be8 prevents it from capturing White's Bishop, for now.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 42...g6 and 43...g5 44.g3
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 42...g6 » 43...g5 44.g3
After 42...g6 » 43...g5 44.g3, Black's attention now turns to trying to destroy the Kingside portion of White's Advanced Salient, but White has that threat covered ...

Black's g-Pawn is brought down (42...g7-g6 » 43...g6-g5), to attack the Kingside Base of White's Advanced Salient.

White pushes his g-Pawn forward (44.g2-g3), to meet the attack on his Advanced Salient, providing support for the f4-Pawn.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 44...gxf4 45.gxf4
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 44...gxf4 45.gxf4
After 44...gxf4 45.gxf4, an exchange of Pawns on f4 (44...g5xf4 45.g3xf4), ensures White maintains his Advanced Salient, in opposition to Black's Reverse Salient.
Point Count Chess - IE - Example 4 (Result) - The Advanced Salient, Salient v. Reverse Salient (4 of 4), After 49.Rc7+
(RESULT) The Advanced Salient,
Salient v. Reverse Salient (4 of 4),
After 49.Rc7+
After 49.Rc7+, Black resigns, with White's Advanced Salient still holding strong against Black's Reverse Salient.

If Black chose to play on, White's Absolute Rook Fork wins Black's Queen (49...Re8-e7 50.Rc7xb7). Then, after 50...Re7xb7, White, with his Queen, would have a winning advantage, against Black, with just his Rook to defend the Pawns and King.

Black's resignation ends this example of how White's Advanced Salient can triumph against Black's Reverse Salient.


[Jump to ChessFlash Viewer]

Summary of the Salient v. Reverse Salient (4 of 4)...

  1. The Queen's Gambit Declined (1.d2-d4 d7-d5 2.c2-c4 e7-e6), leads to White's Advanced Salient at his K5 (e5). Having the Advanced Salient in this position means Black's opposing Reverse Salient will incorporate Black's f-Pawn, which in turn leaves Black's c-Pawn as the primary Pawn threat to the survivability of White's Advanced Salient. White will also have to contend with an attack from Black's g-Pawn, but probably not until much later in the game, as it will most likely be guarding Black's Kingside Castled King.

  2. White exchanges his e-Pawn (e3-f4-e5), all the way up to the Advanced position (of the Advanced Salient), at e5. White achieves this with two Minor Piece exchanges: the first trade, of his dark-Bishop (9.Bg5-f4 9...Nf6-h5 » 10...Ng5xf4) gets his e-Pawn onto f4 (11.e3xf4), and then the King Knight, having been sent to the e5-Outpost (6.Ng1-f3 » 15.Nf3-e5), is allowed to be exchanged (15...Bd7-e8 » 21...Bf6xe5) to get White's f4-Pawn onto e5 (22.f4xe5), and into the Advanced position.

  3. White deals with the threat from Black's c-Pawn, against the Queenside portion of his Advanced Salient, by exchanging his Queen Knight on d5 (16.Nc3xd5). This pulls Black's c-Pawn onto d5 (16...c6xd5), where it forms the Queenside portion of Black's Reverse Salient.

  4. White can attack through the Open c-file, after the opposing Salient formations have become fixed. This is where White invades, with his Rooks and Queen in Battery formation.

  5. White has to deal with a late attack on the Kingside portion of his Advanced Salient, from Black's g-Pawn (42...g7-g6 &#raquo; 43...g6-g5).

  6. White exchanges g-Pawns (44...g5xf4 45.g3xf4), to maintain his Advanced Salient, which blockades Black's Reverse Salient, all the way to the end of the game, when Black resigns.

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PGN

[Event "Prague Evony"]
[Site "Prague"]
[Date "1927"]
[EventDate "?"]
[Round "10"]
[Result "1-0"]
[White "Bedrich Thelen"]
[Black "Frantisek Treybal"]
[ECO "D66"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "97"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 {Black Salient: c6,d5,e6} 8.Bd3 h6 9.Bf4 Nh5 10.O-O Nxf4 11.exf4 dxc4 12.Bxc4 Nb6 13.Bb3 Nd5 14.Qd2 Bd7 15.Ne5 Be8 16.Nxd5 cxd5 17.Qd3 Qb6 18.Rfd1 f5 {Black Reverse Salient: d5,e6,f5} 19.Rd2 Bf6 20.Qe3 a5 21.a3 Bxe5 22.fxe5 {White Advanced Chain: d4,e5 ... leading to the Advanced Salient} Bd7 23.Kh1 Rac8 24.Rg1 Be8 25.f4 {White Advanced Salient: d4,e5,f4 ... develops from the Advanced Chain, and is much better than Black's Reverse Salient} Bg6 26.Bc2 Rc7 27.Bd3 Bh7 28.h3 Rcf7 29.Rc1 Qd8 30.Rdc2 Qh4 31.Kh2 Qd8 32.Rc5 Re7 33.Qe1 b6 34.Rc6 Qb8 35.Qh4 Rfe8 36.Bb5 Kf8 37.R1c3 Rd8 38.Qe1 Bg6 39.Qc1 Be8 40.Rc8 Rxc8 41.Rxc8 Qb7 42.a4 g6 43.Qc3 g5 44.g3 gxf4 45.gxf4 h5 46.Kh1 h4 47.Kh2 Kf7 48.Bxe8+ Rxe8 49.Rc7+ 1-0

End.

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