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Pathway extension · Opening reference

Your opening repertoire

A compact repertoire is useful only when you can remember its moves, explain its idea and recognise the traps. These cards organise one dependable answer to the common first moves.

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01

Before any line

Four rules stay in force

Control the centre

Visual chess lesson

French Defence centre

White to move

Which pawn chain is Black preparing to challenge, and where is the immediate central tension?

d4: White centree4: White centred5: Central challengec7: Future ...c5 breakTypical ...c5 challenge
Reveal the explanation

White's pawns on d4 and e4 claim space. Black's d5-pawn directly challenges e4, while ...c5 is the usual second attack on White's centre. White must decide whether to advance, exchange or defend the tension.

The French Defence creates a clear central chain and a plan to challenge its base.Position: rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - 2 4

Use pawns and pieces to fight for e4, d4, e5 and d5. An opening line is not permission to ignore the centre.

Develop first

Visual chess lesson

Italian Game: developed and castled

White to move

Which opening goals have both sides already achieved?

f7: Natural pressure pointe4: Central pawne5: Central pawnBishop pressure
Reveal the explanation

Both sides have developed pieces towards the centre and castled. White’s bishop on c4 points at f7; the next task is to complete development and prepare the central break.

A principled Italian Game position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 d6 6.O-O O-O.Position: r1bq1rk1/ppp2ppp/2np1n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQ1RK1 w - - 2 7

Bring each minor piece towards an active square before moving the same piece repeatedly.

Castle early

Visual chess lesson

King’s Indian setup

White to move

Identify Black’s completed setup before choosing the central pawn break.

g7: Fianchettoed bishopd4: White’s centree4: White’s centrePossible ...e5 breakPossible ...c5 break
Reveal the explanation

Black has developed the king’s knight, fianchettoed the bishop and castled. The next decision is whether to challenge White’s centre with ...e5 or ...c5.

The setup is a structure and plan, not merely a memorised move order.Position: rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQ - 2 6

Get the king safe and the rooks connected before the position opens.

Do not grab

Visual chess lesson

Gaining tempi against an early queen

Black to move

Black to move. Which developing move attacks the early queen?

h5: Early queenf6: Developing square1...Nf6Knight attacks queen
Reveal the explanation

1...Nf6 develops the knight and attacks the queen on h5. The move gains a tempo because it improves Black's position while forcing the queen to move again.

Verified line: Nf6

The knight develops to its natural square with an attack on the exposed queen.Position: 3qk1n1/5pp1/8/7Q/8/8/8/6K1 b - - 0 1

When material is offered early, find the opponent’s forcing continuation before accepting.

02

Playing White

One first move, five replies

1...e5

Italian Game setup

Visual chess lesson

Italian Game: developed and castled

White to move

Which opening goals have both sides already achieved?

f7: Natural pressure pointe4: Central pawne5: Central pawnBishop pressure
Reveal the explanation

Both sides have developed pieces towards the centre and castled. White’s bishop on c4 points at f7; the next task is to complete development and prepare the central break.

A principled Italian Game position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 d6 6.O-O O-O.Position: r1bq1rk1/ppp2ppp/2np1n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQ1RK1 w - - 2 7

Use 1.e4, Nf3 and Bc4, castle and prepare the central break. Develop with threats but do not launch before the king is safe.

1...c5

Simple Anti-Sicilian setup

Visual chess lesson

Open Sicilian structure

Black to move

What has changed in the centre after White's d-pawn and Black's c-pawn are exchanged?

e4: White's central pawnd4: Active knightd6: Black's supporting pawnNatural development
Reveal the explanation

White has a central e4-pawn and an active knight on d4. Black has exchanged the c-pawn for White's d-pawn and will normally develop while challenging the centre. The resulting imbalance is a defining feature of many Open Sicilian positions.

The c-pawn exchange creates an asymmetrical centre and active piece play.Position: rnbqkbnr/pp2pppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - 0 4

Meet the asymmetry with simple development, quick castling and a familiar position rather than attempting to memorise every variation.

1...e6

Meeting the French

Visual chess lesson

French Defence centre

White to move

Which pawn chain is Black preparing to challenge, and where is the immediate central tension?

d4: White centree4: White centred5: Central challengec7: Future ...c5 breakTypical ...c5 challenge
Reveal the explanation

White's pawns on d4 and e4 claim space. Black's d5-pawn directly challenges e4, while ...c5 is the usual second attack on White's centre. White must decide whether to advance, exchange or defend the tension.

The French Defence creates a clear central chain and a plan to challenge its base.Position: rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - 2 4

Build the centre, develop naturally and be ready for the tension created by Black’s ...c5 break.

1...c6 or 1...d5

Caro-Kann and Scandinavian

Visual chess lesson

Caro-Kann central exchange

Black to move

After the central exchange, what should Black do before looking for tactics?

e4: Central white knightc6: Caro-Kann support pawnc8: Bishop ready to developDevelop the bishop
Reveal the explanation

White's knight has recaptured on e4. Black should develop with ...Bf5 or ...Nd7 and complete kingside development. The Caro-Kann aims for a sound structure and active development rather than an immediate material raid.

The exchanged centre leaves Black with a clear development task and a sound pawn structure.Position: rnbqkbnr/pp2pppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - 0 4

Develop with tempo when the queen appears, maintain the centre and avoid drifting into a passive setup.

Anything unusual

Standard development

Visual chess lesson

Candidate moves

White to move

White to move. Identify several plausible developing candidates before calculating one.

g1: Castling destinatione3: Develop the bishopc3: Prepare d4Candidate: O-OCandidate: Be3Candidate: c3
Reveal the explanation

Castling, Be3 and c3 are all plausible candidates in this Italian Game position. The exercise is to form a short list before committing calculation time to the first move noticed.

One quiet opening position presents several sound candidates with different purposes.Position: r1bqk2r/ppp2ppp/2np1n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - 2 6

Use Nf3, Bc4, castling and then Nc3 when the position permits. If the opponent’s move creates no urgent threat, continue developing normally.

03

Playing Black

Reliable answers without reinvention

Against 1.e4

Mirror and equalise

Visual chess lesson

Italian Game: developed and castled

White to move

Which opening goals have both sides already achieved?

f7: Natural pressure pointe4: Central pawne5: Central pawnBishop pressure
Reveal the explanation

Both sides have developed pieces towards the centre and castled. White’s bishop on c4 points at f7; the next task is to complete development and prepare the central break.

A principled Italian Game position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 d6 6.O-O O-O.Position: r1bq1rk1/ppp2ppp/2np1n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQ1RK1 w - - 2 7

Meet the centre, develop the king’s knight, bring the bishop out and castle. Do not chase equality with premature pawn grabs.

Early deviations

Decline the bait

Visual chess lesson

Poisoned b-pawn

Black to move

What must Black calculate before taking the pawn on b2?

b2: Apparently free pawnb1: Rook tempoc3: Knight restricts queenCandidate ...Qxb2Rb1 gains tempo
Reveal the explanation

After ...Qxb2, White can gain a tempo with Rb1 and may combine it with the knight on c3 to restrict the queen's escape squares. The pawn is poisoned only if the concrete trapping line works.

The b-pawn appears free, but the rook tempo and nearby knight make the queen's route the real calculation.Position: 6k1/8/1q6/8/8/2N5/1P6/R6K b - - 0 1

Against gambits and surprise pawn offers, make principled developing moves and force the attacker to prove the compensation.

Against 1.d4

King’s Indian setup

Visual chess lesson

King’s Indian setup

White to move

Identify Black’s completed setup before choosing the central pawn break.

g7: Fianchettoed bishopd4: White’s centree4: White’s centrePossible ...e5 breakPossible ...c5 break
Reveal the explanation

Black has developed the king’s knight, fianchettoed the bishop and castled. The next decision is whether to challenge White’s centre with ...e5 or ...c5.

The setup is a structure and plan, not merely a memorised move order.Position: rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQ - 2 6

Use ...Nf6, ...g6, ...Bg7 and ...0-0 as the standard setup, then choose the central pawn break after seeing White’s structure.

Against the London

Challenge the system

Visual chess lesson

London System setup

White to move

Which white pieces and pawns form the recognisable London structure?

f4: Bishop outside the chaind4: Central pawnc3: Supports d4e3: Supports the centreBlack challenges the centre
Reveal the explanation

White has pawns on d4, e3 and c3, the bishop developed outside the pawn chain on f4, and knights on f3 and d2. The setup supplies a dependable structure, but White must still respond to Black's ...c5 pressure rather than play it mechanically.

A familiar London structure is a starting position for plans, not a substitute for reading the board.Position: r1bqk2r/pp3ppp/2nbpn2/2pp4/3P1B2/2P1PN2/PP1N1PPP/R2QKB1R w KQkq - 2 7

Develop with purpose, question the centre and do not surrender the same comfortable setup without asking it a concrete question.

04

Early warning

Trap warning signs

Scholar’s Mate

Visual chess lesson

Scholar’s Mate defence

Black to move

Black to move. What are White’s queen and bishop threatening?

f7: Mating targetQueen attacks f7Bishop supports f7
Reveal the explanation

White threatens Qxf7#. Black must defend f7 while developing. The continuation 3...g6 4.Qf3 Nf6 meets the immediate threat and develops a defender.

Verified line: g6 Qf3 Nf6

The queen on h5 and bishop on c4 form a battery against f7.Position: r1bqkbnr/pppp1ppp/2n5/4p2Q/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 3 3

The queen and bishop point towards f7 or f2. Defend the square while developing and attack the early queen when safe.

Fried Liver Attack

Visual chess lesson

Fried Liver Attack

White to move

After the inaccurate 5...Nxd5?, White can exploit the exposed king. Find the forcing move.

f7: Fork squared8: Queenh8: Rook6.Nxf7
Reveal the explanation

6.Nxf7 forks the queen on d8 and rook on h8. After 6...Kxf7, 7.Qf3+ continues the forcing attack against Black's exposed king.

Verified line: Nxf7 Kxf7 Qf3+

The f7 fork and follow-up queen check are the tactical consequences of Black’s inaccurate recapture on d5.Position: r1bqkb1r/ppp2ppp/2n5/3np1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - 0 6

The knight lands on g5 and pressure builds on f7. Use the central break at the correct moment and avoid the inaccurate ...Nxd5 recapture.

Halloween Gambit and early piece sacrifices

Visual chess lesson

Halloween Gambit warning

Black to move

White has sacrificed a knight for a pawn centre. What should Black value before accepting further material?

e5: Attacked black knightd4: Pawn advance with tempoe4: White pawn centreThe pawn attacks the knight
Reveal the explanation

White has given a knight for a pawn and gained tempi by attacking the knight on e5 with d4. Black should preserve the extra piece, complete development and avoid returning material without a concrete reason. The warning sign is an early sacrifice followed by pawn moves with tempo.

An early piece sacrifice can buy space and tempi, but accurate defence protects the material advantage.Position: r1bqkb1r/pppp1ppp/5n2/4n3/3PP3/5N2/PPP2PPP/R1BQKB1R b KQkq - 0 5

A piece is offered very early for central pawns or tempi. Count material, check whether the attack continues and decline the sacrifice when the follow-up is unclear.

Golden rule: develop, castle and do not panic. Those three habits neutralise most early tricks.

05

One-page system

What to write on your repertoire card

  • Your first move as White and its purpose in one sentence.
  • Your response to each common Black reply, with three moves and three ideas.
  • Your answer to 1.e4 and 1.d4 as Black, including the intended pawn break.
  • The trap warning attached to each line.
  • An opening review after ten moves: development, king safety and a middlegame plan.

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