Fried Liver Attack

The knight sacrifice on f7: drag the king into the centre and hunt it — plus the defences every player must know against it.

For WhiteECO C5726k games analysed

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The Fried Liver Attack (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7!?) is the most famous piece sacrifice in opening theory. White gives up a whole knight to drag the black king to e6 — after 6…Kxf7 7.Qf3+ Ke6 the king must defend the pinned d5-knight in the middle of the board, and every White piece joins the hunt.

For improving players the Fried Liver is a rite of passage from both sides: as White it teaches attacking with the whole army; as Black it teaches why 5…Nxd5 is already the losing moment — the master move 5…Na5! avoids the sacrifice entirely. This guide covers the attack itself, the even stronger 6.d4 (Lolli), and the defences that keep Black alive.

Main lines

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 Kxf7 7.Qf3+ Ke6 8.Nc3The Fried Liver proper — the king defends d5 at gunpoint; White plays O-O, Re1 and d4 with a raging attack for the piece.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4The Lolli Attack — modern theory’s choice: White builds the threats first, and Black’s defence is even harder than after the sacrifice.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5The Polerio Defense — Black’s correct path: the knight hits c4 first, and after 6.Bb5+ c6 7.dxc6 bxc6 Black gets real compensation.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5The Traxler Counterattack — Black offers f7 and aims at f2; wild, theory-heavy and a favourite club-level surprise.

Key plans & ideas

Pile on the pinned knight: after 7.Qf3+ Ke6 8.Nc3, everything hits d5 — the king is its last defender, and each new attacker forces a concession.
Keep the king in the centre: O-O, Re1 and d4 open lines before Black unravels — speed matters more than material.
Prefer 6.d4 when in doubt: the Lolli Attack keeps the threats and adds a lasting initiative without sacrificing — objectively White’s strongest.
As Black, know 5…Na5!: hitting the c4-bishop before recapturing on d5 sidesteps the whole attack — the move every 1…e5 player must memorise.
Respect the Traxler: 4…Bc5!? ignores the g5-knight and counterattacks f2 — do not grab f7 automatically; know your line in advance.

Performance by rating

White win / draw / Black win across rated games, by average rating.

All

67%3%30%26k

~1400

68%3%29%13k

~1600

67%3%30%8.3k

~1800

65%3%32%3.6k

~2000

58%4%38%985

2200+

59%5%36%234

Practice the Fried Liver Attack

An interactive course for this opening is coming soon.

Coming soon

Frequently asked questions

Does the Fried Liver Attack actually work?

Against 5…Nxd5 — yes. Engines confirm White’s attack is worth at least the piece, and in practical play the defence is close to impossible: one wrong king step loses on the spot. The refutation happens a move earlier, with 5…Na5.

How do you defend against the Fried Liver Attack?

Do not take the d5-pawn with the knight. After 4.Ng5 d5 5.exd5, play 5…Na5! hitting the bishop — the Polerio Defense. Black gives up a pawn for rapid development and a lasting initiative, and White’s knight sacrifice never appears.

Is the Fried Liver Attack good for beginners?

It is essential knowledge. As White it wins countless club games and teaches pure attacking chess; as Black, knowing 5…Na5 (or avoiding 3…Nf6 lines altogether with 3…Bc5) saves you from disaster after 4.Ng5.

What is the difference between the Fried Liver and the Lolli Attack?

Both start 4.Ng5 d5 5.exd5 Nxd5. The Fried Liver sacrifices immediately with 6.Nxf7; the Lolli plays 6.d4 first, bringing more force before any material investment — modern engines rate the Lolli as even stronger.