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Mobile Pawn Wing
Expansion on "General Principles"

Point Count Chess, NO. 49A to NO. 49B, p76-77

The purpose of this example is to show a Mobile Pawn Wing that ISN'T focused on attacking the position of the enemy King (such as in the first two examples: Typical Morphy Attack and Cramped Position respectively).

Instead, this example looks at how to use a Mobile Pawn Wing to gain Greater Space. And, in another change to the two examples mentioned above, this Pawn Wing is mobilized on the Queenside ...

Beneath the ChessFlash viewer, you'll find my analysis of the two positions featured in Point Count Chess:
  1. PCC, p.76, No. 49A, after 8...Nxg7
  2. PCC, p.77, No. 49B, after 19.Qc7
  3. End of the Mobile Pawn Wing;
  4. Result of the Mobile Pawn Wing.
  5. PGN

Expansion on "General Principles"
My Analysis

Position #1, My Analysis
PCC, p.76, No. 49A, after 8...Nxg7

After: 1.Nf3 Nf6 2.c4 g6 3.b3 Bg7 4.Bb2 O-O 5.g3 d6 6.Bg2 Nbd7 7.O-O Nh5 8.Bxg7 Nxg7

Point Count Chess - IE - Diagram 49A - Page 76
After: 8...Nxg7

We know that White has a Mobile Pawn Wing (on the Queenside), so he must also have Control of the Center and the Superior Development. Let's take a look to how these are met ...

Point Count Chess - IE - Diagram 49A - After 8...Nxg7 - Control of the Center
Mobile Pawn Wing with:
(1 of 3) Control of the Center
Diagram 1 of 3: White has
Control of the Center ...


While Black has a 2:1 control over e5, White controls 2x squares (d4 & d5).

Note also that the square Black controls is in his own territory, whereas the Center square that White's c4-Pawn controls, is in enemy territory (Black's territory).

This greater proportion of control is enough to give White Control of the Center.

Point Count Chess - IE - Diagram 49A - After 8...Nxg7 - Superior Development
Mobile Pawn Wing with:
(2 of 3) Superior Development
Diagram 2 of 3: White has the
Superior Development ...


The units highlighted in green squares are all identical Pawns and Pieces, in identical / mirrored positions. So we can ignore these.

The units highlighted in yellow squares are in a more advanced position than their equivalent enemy counterparts (red squares) on the opposite side of the board.

A quick note comparing the positions of the units that are in more/less advanced positions, has been made, below ...

Taking all that into account, it's the contrast between White's c4-Pawn (which attacks enemy territory -- red arrows) and Black's d6-Pawn (which only contests squares in its own territory -- green arrows), which rams home White's overall Superior Development.

Point Count Chess - IE - Diagram 49A - After 8...Nxg7 - Mobile Pawn Wing
(3 of 3) Mobile Pawn Wing
White's Queenside Flank Pawns
Diagram 3 of 3: White has
a Mobile Pawn Wing, on the Queenside Flank ...


Because White has qualified for both Control of the Center and the Superior Development, he also qualifies for the advantage of a Mobile Pawns Wing, and chooses the partially developed Queenside Pawns, as his Pawn Wing.

The focus of this Pawn Wing, remember, is to gain Greater Space for White's army.

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Position #2, My Analysis
PCC, p.77, No. 49B, after 19.Qc7

After: 9.d4 f5 10.Nc3 c6 11.b4 Nf6 12.a4 Rb8 13.b5 Bd7 14.Qd3 Qe8 15.e4 e5 16.dxe5 dxe5 17.Qd6 fxe4 18.Ng5 Nf5 19.Qc7

Point Count Chess - IE - Diagram 49B - Page 77
After: 19.Qc7

The diagram, (below), shows the moment just before the first Queenside Wing Pawn is advanced, since White qualified for a Mobile Pawn Wing ...

Point Count Chess - IE - Diagram 49B - After 10.Nb1-c3
After: 9.d4 f5 10.Nc3
Note the support going forward that White's Queenside Knight provides from c3.

While our focus is on the mobility of White's Wing Pawns (yellow squares), Nf3 provides support points for four different Pawn advances (yellow arrows to green squares), two of which will be in advanced positions (b5 & d5).

This is a good example of why the c3-square is such a favorite spot for White's Queenside Knight.

From a beginner's perspective, White could choose to move any one of the three Wing Pawns. So, it's good to be able to look at the next position ...

Point Count Chess - IE - Diagram 49B - After 11.b2-b4
After: 10...c6 11.b4
White's Mobile Pawn Wing begins to advance...

The b-Pawn (yellow square) is the first to move, since White gained his Mobile Pawn Wing; the move 11.b2-b4 is in response to Black's 10...c7-c6.

White's Pawns double-up against the c5-square. This may be due to the threat of Black's c-Pawn spearheading an attack from c5, on White's d4-Pawn.

Study the image, (below). It shows the result of White's very next move ...

Point Count Chess - IE - Diagram 49B - After 12.a2-a4
After: 11...Nf6 12.a4
White's Mobile Pawn Wing continues to advance...

The a-Pawn is mobilized (11.a2-a4), to join its fellow Queenside Pawns, on the 4th Rank.

With successive moves of his Pawn Wing, White has created a formidable 4-Pawn Phalanx that, with help from the two Knights (Nc3 & Nf3), Controls five squares, all along the 5th Rank, in Black's territory (red squares).

(Still looking at the image, above) Green arrows show the White Pieces that coordinate to support two of the four Pawn. White's b4-Pawn & c4-Pawns are both sitting without defenders, at the moment. But, this is remedied (for White's b-Pawn), on his very next move ...

Point Count Chess - IE - Diagram 49B - After 13.b4-b5
After: 12...Rb8 12.b5
White's Mobile Pawn Wing attacks Black's 2-Pawn Chain...

White's undefended c4-Pawn is allowed to remain, as the b-Pawn is pushed immediately into attacking Black's c6-Pawn, which is at the head of a 2-Pawn Chain (b7,c6).

The red line in the image to helps hammer home the fact that White now occupies an Advanced position with the b5-Pawn ...

White's entire Mobile Pawn Wing forms an Advanced Salient. The benefit of this structure, in this situation, is that Black would still leave White with an Advanced Chain, if he were to attack (e.g. 12...c6xb5, followed by either 13.a4xb5 or 13.c4xb5).

IMPORTANT: Because all three Wing Pawns can still move forward, even thought White's b5-Pawn is now technically under attack (from Black's c6-Pawn), White's Mobile Pawn Wing still exists!

The next part involves a long sequence before White's Mobile Pawn Wing is dissolved. But it's worth taking a look at the build-up, to see how White creates the condition that enables him to convert his Mobile Pawn Wing into his goal of creating Greater Space on the Queenside.

Point Count Chess - IE - Diagram 49B - After 13...Bd7
After: 13...Bd7
First, we see how White "opens a channel" for his Queen along the d-file ...

The diagram, (left), shows that White's own d-Pawn blocks the path of his Queen (Qd1). The d-file (the "channel"), is Closed.

White's Qd1 X-Rays (Definition 2) through to Black's d6-Pawn, which is only defended by the e7-Pawn. White sees this as enough of a vulnerability, (an opportunity), or weakness, that it can be exploited.

The next two-part image series shows how White effectively "opens the channel", through to the d6-square ...

Point Count Chess - IE - Diagram 49B - After 16.dxe5
(Step 1 of 2) After: 14.Qd3 Qe8
15.e4 e5 16.dxe5
(Step 1 of 2) White's d-Pawn is used to create a Half-Open File. This "opens the channel" for his Queen ...

This is kind of like a Clearance Sacrifice -- White's d4-Pawn was in the way, so White chooses to trade it with Black's e-Pawn, in order to clear the Pawn out of the way, to enable White's Queen to access the targeted d6-square.
Point Count Chess - IE - Diagram 49B - After 17.Qd6
(Step 2 of 2) After: 16...dxe5 17.Qd6
(Step 2 of 2) White's Queen dashes through the "open channel" ...

Black's d6-Pawn had already switched files, capturing White's e5-Pawn in the process (16..d6xe5 -- red arrow), so White's Queen simply launches herself forward, landing on d6, but without taking any material.

So, that was the first portion of the long-ish sequence. Now onto the next part that I thought worth noting. Once again, it involves White's Queen ...

Point Count Chess - IE - Diagram 49B - After 19.Qc7
After: 17...fxe4 18.Ng5 Nf5 19.Qc7
Second, we see how White carefully maneuvers his Queen along the dark-squares ...

White maneuvers his Queen into position, ready to attack along Black's 2nd Rank -- Qc7 is ready to strike at Black's undefended a7-Pawn, just as soon as the b7-Pawn is enticed out of the way!

In that sequence, White lost a Pawn (17...f5xe4), and there's been a bit of shuffling about by the Kingside Knights (18.Ng5 Nf5)

Those were the only points worth mentioning, and we're now up to the point of Position #2, as seen in Point Count Chess (Image No. 49B, p77).

After that, White's Mobile Pawn Wing ended ...


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The End of White's Mobile Pawn Wing...

In a similar way as seen in the Typical Morphy Attack example, White dissolves his own Mobile Pawn Wing by capturing enemy material with one of the three Wing Pawns ...

Point Count Chess - IE - Diagram 49B - After 20.bxc6 - Mobile Pawn Wing Ends
After: 19...e3 20.bxc6
This capture (20.bxc6) destroys the overall mobility of the entire structure, and so the Mobile Pawn Wing ends.

The catalyst for White's decision appears to be the attack on White's f2-Pawn, by Black's e3-Pawn (19...e4-e3). The f2-Pawn dare not capture as Black's Nf5 is ready to take it on e3 and flow straight into a Knight Fork Attack on White's Rf1 & Bb2 ... White's Rook would be toast.
Point Count Chess - IE - Diagram 49B - After 21.Qxa7
After: 20...bxc6 21.Qxa7
The capture that led to the end of the Mobile Pawn Wing, leads to White's Queen taking-out Black's a7-Pawn.

Black's b7-Pawn was forced to capture White's Pawn (20...bxc6), else risk either losing the Bd7 (21.c6xd7) or itself (21.c6xb7). The latter would have benefited White's pursuit to Promote a Pawn (also, on b7, White's Pawn would be inducing some serious cramp on Black's Rb8).

We can now analyze the before-and-after positions of this Mobile Pawn Wing example, to assess the Greater Space gained by White ...


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The Result of White's Mobile Pawn Wing...

White's objective was to gain Greater Space on the Queenside. So that's how I'm assessing the result of White's Mobile Pawn Wing.

The following analysis is based on Yasser Seirawan's explanation of Territorial Domination (see Winning Chess Strategies, Chapter 8, p159-175), which involves determining space gained, by how far up the board the Pawns have traveled (plus whether enemy Pawns are able to attack in behind the position of an opposing pawn on an adjacent file).

Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing Start 8...Nxg7 - No Highlights
(START) Mobile Pawn Wing,
After: 8...Nxg7
Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing Start 8...Nxg7
(START) Mobile Pawn Wing,
After: 8...Nxg7
Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing Pre-End 19...e3 - No Highlights
(PRE-END) Mobile Pawn Wing,
After: 19...e3
Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing Pre-End 19...e3
(PRE-END) Mobile Pawn Wing,
After: 19...e3
Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing End 20.bxc6 - No Highlights
(END) Mobile Pawn Wing,
After: 20.bxc6
Point Count Chess - IE - Diagram 49A to 49B - Result, Mobile Pawn Wing End 20.bxc6
(END) Mobile Pawn Wing,
After: 20.bxc6
Point Count Chess - IE - Diagram 49A to 49B - Result, White's Space Gain 21.Qxa7 - No Highlights
(RESULT) White's Space Gain,
After: 21.Qxa7
Point Count Chess - IE - Diagram 49A to 49B - Result, White's Space Gain 21.Qxa7
(RESULT) White's Space Gain,
After: 21.Qxa7

By the end of this sequence, White has converted his Mobile Pawn Wing into an Outside Passed Pawn (a4 -- green arrow), which has support from Qa7 ahead, plus Ra1 & Nc3 from the rear (yellow arrows).

In addition, White claims a Territorial Domination advantage of 6x squares (green) versus 2x squares (red) that Black claims with his Isolated Pawn (c6-Pawn), which, incidentally, is attacked by White's Fianchettoed Bg2, and is another converted benefit resulting from White's Mobile Pawn Wing.


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PGN

[Event "Hastings-B 2425"]
[Site "Hastings"]
[Date "1924.??.??"]
[EventDate "1924.12.??"]
[Round "2"]
[Result "1-0"]
[White "Savielly Tartakower"]
[Black "Harold Saunders"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "65"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O Nh5 8. Bxg7 Nxg7 {PCC p.76 No. 49A} 9. d4 f5 10. Nc3 c6 11. b4 Nf6 12. a4 Rb8 13. b5 Bd7 14. Qd3 Qe8 15. e4 e5 16. dxe5 dxe5 17. Qd6 fxe4 18. Ng5 Nf5 19. Qc7 {PCC p.77 No. 49B} e3 20. bxc6 bxc6 21. Qxa7 h6 22. Nge4 Ng4 23. Rae1 exf2+ 24. Nxf2 h5 25. Nxg4 hxg4 26. Qc5 Qf7 27. Rxe5 Be6 28. Be4 Rb2 29. Qxc6 Bxc4 30. Bxf5 Qa7+ 31. Kh1 Bxf1 32. Qxg6+ Qg7 33. Be6+ 1-0

End.

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