Coach Answer Key - Creating Weaknesses
Solutions are organized by the neutral exercise numbering used in the student handout. Lines are intentionally short; the training priority is the structural idea.
Exercise 1
Best move: 1...b5!
Short plan: Start a queenside minority attack immediately. Follow with ...a5 and ...b4 to provoke pawn exchanges and leave fixed targets on the a- and b-files.
Critical line: 1...b5 2 g4 a5 3 Qd1 b4 4 h4 a4 5 Nb1 Ne4
Strategic theme: Minority attack; provoking a fixed queenside weakness
Why the tempting alternative is inferior: A quiet improving move is too slow: White can consolidate. The structural lever ...b5 is valuable precisely because it forces a decision before White reorganizes.
Difficulty: 1/5
Source mapping: original Position 175; E. Perelshteyn - S. Atalik, Philadelphia 2000; exercise printed page 331 / PDF page 332; solution printed page 416 / PDF page 417.
Exercise 2
Best move: 1 h4!
Short plan: Use the kingside pawn majority to create a new weakness. The intended h4-h5 and hxg6 opens lines and leaves Black unable to defend both wings.
Critical line: 1 h4 Rad8 2 Be5 Qa5 3 b4 Qc7 4 h5 Rxd1 5 Qxd1
Strategic theme: Majority attack; opening a second front
Why the tempting alternative is inferior: Rushing with h5 at the wrong moment allows ...Bd4 and unnecessary counterplay. The advance works best when it is prepared and the rest of the position is under control.
Difficulty: 1/5
Source mapping: original Position 176; P. Murdzia - M. Smolovic, Hallsberg 1991; exercise printed page 331 / PDF page 332; solution printed page 416 / PDF page 417.
Exercise 3
Best move: 1 a6!
Short plan: Sacrifice or advance the a-pawn to soften c6. After the b-pawn is deflected, a white knight can occupy c6 and the remaining passed pawn becomes a major asset.
Critical line: 1 a6 bxa6 2 Nc6 Bxc6 3 bxc6
Strategic theme: Creating an entry square by deflecting a pawn
Why the tempting alternative is inferior: An immediate piece jump toward c6 lacks permanence while Black can still control the square with the b-pawn. The pawn move changes the structure first.
Difficulty: 2/5
Source mapping: original Position 178; Zsuzsa Polgar - D. Paunovic, San Sebastian 1991; exercise printed page 331 / PDF page 332; solution printed page 417 / PDF page 418.
Exercise 4
Best move: 1...Nxd4!
Short plan: First remove the knight from c3, then play ...b5-b4. Once the c3 defender is displaced, the minority attack gains time and Black can seize central space with ...d5.
Critical line: 1...Nxd4 2 Qxd4 b5 3 axb5 axb5 4 Nd1 d5 5 e5 Ne4
Strategic theme: Exchange before the pawn break; minority attack plus central restriction
Why the tempting alternative is inferior: The immediate 1...b5 is playable, but exchanging on d4 first is more precise because it dislodges the c3-knight before the queenside structure changes.
Difficulty: 2/5
Source mapping: original Position 179; N. Short - M. Suba, Dortmund 1983; exercise printed page 332 / PDF page 333; solution printed page 417 / PDF page 418.
Exercise 5
Best move: 1...f4!
Short plan: Force a kingside structural concession with ...f4-f3. After White captures, f5 becomes a protected square and Black can use it as a permanent piece outpost.
Critical line: 1...f4 2 Qg4 f3 3 gxf3 Nf5 4 Ba3 h5
Strategic theme: Pawn lever creates a hole and damages the pawn structure
Why the tempting alternative is inferior: A piece maneuver to f5 without changing the pawns would be easier to challenge. The point of ...f4 is to make the f5-square durable before occupying it.
Difficulty: 3/5
Source mapping: original Position 181; V. Vehi Bach - L. Psakhis, Manresa 1996; exercise printed page 332 / PDF page 333; solution printed page 418 / PDF page 419.
Exercise 6
Best move: 1...a4!
Short plan: Soften b3 for the knight. If White fixes the queenside with b4, ...Nb3 gains an entry square; then ...c5 prevents c4-c5 and weakens the dark-square complex.
Critical line: 1...a4 2 Bxc5 Nxc5 3 b4 Nb3 4 Rc3 c5
Strategic theme: Provocation; entry square; fixing a pawn chain
Why the tempting alternative is inferior: Playing ...c5 first does not force the same pawn concession and may allow White to organize c4-c5 under better circumstances. ...a4 creates the target before fixing it.
Difficulty: 3/5
Source mapping: original Position 183; R. Aström - J. Hellsten, Sweden 1997; exercise printed page 332 / PDF page 333; solution printed page 419 / PDF page 420.
Exercise 7
Best move: 1...b5!
Short plan: Attack White’s queenside majority and simultaneously free d5 for a knight. After exchanges, the remaining pawns are easier to fix and Black’s pieces gain stable squares.
Critical line: 1...b5 2 cxb5 axb5 3 b4?! Qa6 4 a3 Nb6 5 Ne5 Rc8
Strategic theme: Pawn break with dual purpose: target creation and outpost creation
Why the tempting alternative is inferior: Improving a piece first misses the moment: White’s majority remains mobile. The pawn break is strong because it changes both the pawn structure and the available squares at once.
Difficulty: 4/5
Source mapping: original Position 185; L. Portisch - U. Andersson, Milan 1975; exercise printed page 333 / PDF page 334; solution printed page 419 / PDF page 420.
Exercise 8
Best move: 1 f5!
Short plan: Use the pawn advance to weaken d5. Black cannot resolve the tension without conceding either the d5/e6 squares or king safety, so White can route a knight into d5.
Critical line: 1 f5 Nc5 2 fxg6 hxg6 3 Bxf6 e5 4 Nf3 Nh5
Strategic theme: Creating a central outpost by a flank pawn advance
Why the tempting alternative is inferior: A slow piece maneuver lets Black stabilize the centre. The irreversible pawn move is justified because every major capture choice leaves Black with a lasting square weakness.
Difficulty: 4/5
Source mapping: original Position 186; F. Nijboer - I. Smirin, Wijk aan Zee 1993; exercise printed page 333 / PDF page 334; solution printed page 420 / PDF page 421.
Exercise 9
Best move: 1 h4!
Short plan: Soften g6 and the whole kingside, then switch pieces toward the newly created targets. The knight route Ne2-f4 is especially effective against g6 and e6.
Critical line: 1 h4 h5 2 a5 Qc7 3 Ne2!
Strategic theme: Fixing a kingside weakness, then bringing pieces to the targets
Why the tempting alternative is inferior: The immediate 2 Ne2?! in the source line allows ...Qxa4 and is less clear. First force the kingside concession, then redeploy the knight.
Difficulty: 4/5
Source mapping: original Position 188; J. Lautier - R. Ponomariov, Enghien-les-Bains 1999; exercise printed page 333 / PDF page 334; solution printed page 420 / PDF page 421.
Exercise 10
Best move: 1...h5!
Short plan: Offer a pawn contact to soften f5 for the knight. After gxh5, Black can exchange in the centre and install a knight on f5, while the open h-file and weak dark squares restrict White.
Critical line: 1...h5 2 gxh5 Nxd4 3 Bxd4 Nf5 4 c3 Ra4!
Strategic theme: Pawn lever creates a permanent knight square
Why the tempting alternative is inferior: A direct knight route toward f5 is less convincing while White can still challenge the square. ...h5 first forces a structural change that makes f5 durable.
Difficulty: 5/5
Source mapping: original Position 190; P. Leko - S. Lputian, European Club Cup, Ljubljana 1995; exercise printed page 333 / PDF page 334; solution printed page 421 / PDF page 422.