Sicilian Defence — Najdorf
B90 · Played as black · Advanced · Sicilian
Sharp and asymmetric — Black fights for the full point
The main line
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Nbd7 9.Qd2 b5
Strategic ideas
- …a6 prevents Nb5 and keeps options open for both …b5 queenside expansion and …e5
- Expand with …b5–b4 to disrupt White's queenside structure before the kingside attack lands
- Claim central space with …e5 in 6.Be3 lines to deny White's knight the d4 square
- Put permanent pressure on d4 — every Najdorf plan revolves around that square
- Race to generate counterplay before White's kingside attack reaches critical mass
Key themes
- Dynamic — Positions shift constantly as both sides pursue independent attacking plans on opposite wings
- Counterattack — Black ignores early threats to build queenside counterplay rather than defend passively
- King Safety — Both kings are often exposed, making the timing of attacks critical to survival
Typical plans
Black typically delays …e5 and instead builds queenside counterplay with …a5–a4 while White storms the kingside. The asymmetric pawn structures create rich imbalances where the faster attacker wins. Black must time the …d5 or …e5 breaks precisely to avoid being mated before counterplay materialises.
Move by move
- e4 — White claims the centre and opens diagonals for the bishop and queen immediately.
- c5 — Black challenges d4 asymmetrically, aiming for genuine winning chances rather than a level, symmetrical game.
- Nf3 — White develops naturally and prepares d4 to open the centre against the c5 pawn.
- d6 — Black supports a later …e5 break and gives the f6-knight a safe route without walking into an e4–e5 tempo gain.
- d4 — White strikes the centre at once, inviting …cxd4 to gain time and space.
- cxd4 — Black trades the c-pawn for central influence, following through on the plan set by 2…c5.
- Nxd4 — White recaptures with the knight, centralising it on an excellent square while eyeing c6 and b5.
- Nf6 — Black develops and attacks e4, forcing White to spend a move defending it.
- Nc3 — White defends e4 the natural way while completing minor-piece development.
- a6 — The Najdorf's signature move: it rules out Nb5 and Bb5+ intrusions and keeps both …b5 queenside expansion and …e5 in reserve.
- Be3 — White develops toward the queenside, preparing the thematic English Attack setup.
- e5 — Black claims central space, gaining a tempo on the knight and fighting for the initiative.
- Nb3 — White retreats the knight out of any future …d5 tricks, eyeing d4 and c5.
- Be6 — Black develops, challenging the b3-knight and preparing to meet Qd2/O-O-O with counterplay.
- f3 — White supports e4 and prepares a big pawn storm on the kingside.
- Nbd7 — Black develops the other knight, keeping the f6-knight's options open and preparing …b5.
- Qd2 — White prepares to castle queenside, connecting the rooks for the coming attack.
- b5 — Black launches the thematic queenside expansion, gaining space and preparing …b4 to hit the c3-knight.