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Zukertort Opening A05

A — Flank openings · Family: Zukertort Opening

1. Nf3 Nf6

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The Zukertort Opening with 1.Nf3 Nf6 is the symmetric flank start: both sides develop the king's knight before touching the center. Black mirrors the same flexible philosophy — no target is offered, and the fight moves to move two, where White's choice of 2.c4 (Réti), 2.d4 (queen's-pawn and Indian positions), 2.g3 (King's Indian Attack) or 2.b3 defines the game.

Independence is the charm of the A05 move-order: in systems like the Réti or King's Indian Attack the extra knight move is often the most accurate order, dodging the sharpest replies to an early d4 or c4. Typical plans revolve around hypermodern pressure on the center from the flanks — b2/g2 bishops, d3/e4 or c4/d3 support points, and central breaks (d4 or e4) played only when Black's structure has already committed.

Play through the moves on the board above, explore the variations tree below — click any move of any branch — then test yourself against the engine from the position you picked.

• Position after 2 half-moves — White to move.
• Material is balanced.
• Family “Zukertort Opening” contains 47 recorded variation(s) here.

Variations tree of the Zukertort Opening family

Click any move to jump to that position; switch branches at any point with the alternative moves. Test your knowledge plays the shown position against the engine.

Variations of this family

Related puzzles

Lichess tactics played in this opening — solve them right on the board:

Related openings

Nearby ECO codes in the A — Flank openings volume — compare the move orders:

• Zukertort Opening (A04)
• Zukertort Opening (A06)
• King's Indian Attack (A07)
• Bird Opening (A02)
• Nimzo-Larsen Attack (A01)
• Réti Opening (A09)