Alekhine's Defense Traps (Including the Nxf7 Fork)

Alekhine’s Defense is a provocative opening, and provocative openings breed traps — sharp little tactics where one careless move ends the game on the spot. Some are White’s weapons; some are Black’s. We’ll show each one honestly: the bait, the spring, and the move that defuses it. Because a trap you only half-understand is just a trap waiting to catch you.

Three traps to know

• The Nxf7 fork — White’s classic punishment of a careless …Nd7.
• The Nxf7 blunder — the same sacrifice, but unsound one move later. Know the difference.
• The c5 overreach — Black punishes a greedy White who chases too far.

The Nxf7 fork (White’s classic quick win)

This is the Alekhine trap everyone should learn first. It happens in the Modern line after 3.d4 d6 4.Nf3 dxe5 5.Nxe5, when Black gets careless and develops the knight to d7.

The problem: 5…Nd7?? lets White play the crushing 6.Nxf7!

Here’s why it wins. The knight on f7 forks two pieces at once — the queen on d8 and the rook on h8:

• If Black recaptures with 6…Kxf7, White plays 7.Qh5+ and wins material back with a raging attack on the exposed king.
• If Black declines and plays something like 6…e6, White simply plays 7.Nxd8 and walks away a whole queen up.

Either way, Black is in deep trouble — losing the queen outright if the fork is declined, or a badly exposed king if the knight is taken. It’s a textbook knight fork that the Alekhine move order sets up beautifully.

How Black avoids it: don’t play 5…Nd7 into that knight. The clean fix is to develop with 5…g6 first (heading for …Bg7), or 5…c6 — both keep the position solid and rule out any Nxf7 tricks. The lesson: when a white knight sits on e5 and your f7-pawn is only defended by the king, watch that square like a hawk.

The Nxf7 blunder (the same idea, now unsound)

Here’s the twist that separates players who understand the trap from players who just memorized it. The exact same Nxf7 sacrifice — one move later, in a slightly different position — is a blunder that just hangs a knight.

Look at the position after the safe 5…g6 6.Bc4 c6:

If White, remembering “Nxf7 wins!”, plays the greedy 7.Nxf7?? here, Black just takes:

After 7…Kxf7, there’s no fork (the d5-knight covers key squares, the queen isn’t on the line) and no attack. White has tossed a knight for a single pawn and is just losing.

The takeaway: a sacrifice is only as good as the tactics behind it. The Nxf7 trick wins when it forks the queen and rook — and is a disaster when it doesn’t. Understanding why a trap works is what stops you from “trapping” yourself.

The c5 overreach (Black punishes a greedy White)

Alekhine’s Defense invites White to chase the knight with pawns — and some players get carried away. In the line 4.c4 Nb6, the over-eager 5.c5?? shoves a pawn forward greedily, and it backfires:

Here’s the punishment, step by step:

1. 5…dxc5 6.dxc5 — Black opens the d-file by trading pawns.
2. 6…Qxd1+ 7.Kxd1 — the queen check is the key. It drags the white king to d1 and strips away White’s castling rights forever.
3. 7…N6d7 — the knight retreats to attack both the e5- and c5-pawns. After something like 8.f4 Nxc5, Black scoops the c5-pawn back.

Material ends up level, but White’s king can never castle and Black’s pieces are the active ones. White grabbed space and got nothing for a wrecked king position.

How White avoids it: don’t get greedy. After 4.c4 Nb6, the sound moves are 5.exd6 (the Exchange) or 5.f4 (the Four Pawns) — develop or clarify, don’t shove the c-pawn into a trade that opens the center against your own uncastled king. As always, the antidote to a trap is don’t break a principle to grab something.

The golden rule of opening traps

Every trap here springs for the same reason: someone reached for a shortcut. Black develops the knight to d7 without checking the f7-square, or White plays “Nxf7 always wins” without checking the tactics, or White chases with pawns instead of developing. That’s not a coincidence — it’s the opening principles enforcing themselves.

So the real takeaway isn’t “memorize these three traps.” It’s: develop, watch your loose squares, don’t sacrifice without a reason, and don’t get greedy — and you’ll dodge nine traps out of ten while setting these up for opponents who don’t.

FAQ

What is the Nxf7 trap in Alekhine’s Defense? After 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 Nd7??, White plays 6.Nxf7! — a knight fork that wins the queen on d8 and the rook on h8. Black should play 5…g6 or 5…c6 instead.

Does Nxf7 always win in the Alekhine? No — and that’s the key lesson. It wins when it forks the queen and rook (after 5…Nd7). One move later, after 5…g6 6.Bc4 c6, the same 7.Nxf7?? just hangs a knight for a pawn. Always check the tactics.

How does Black punish White for chasing too much? If White overextends with the greedy 5.c5, Black plays 5…dxc5 6.dxc5 Qxd1+ 7.Kxd1, trading queens with check and destroying White’s castling rights, then wins the c5-pawn back with …N6d7 and …Nxc5.

Do these traps work at higher levels? Strong players know them cold and won’t fall in. But understanding why they work — and why the Nxf7 sac fails in the wrong position — makes you a sharper tactician. At club level, the careless …Nd7 and the greedy pawn chase still happen all the time.

Keep climbing

Traps are tactics in disguise — the better your tactical eye, the more you’ll spot and avoid. Brush up with the opening principles, then loop back to the Alekhine’s Defense overview, the variations guide, or the openings hub. Curious how White really tries to break Alekhine’s Defense? See how to beat Alekhine’s Defense.

Written and fact-checked by the Chess Lab Academy Editorial Team (AI-assisted, human-edited) · Lines checked against mainstream opening theory and verified with Stockfish 17 · ECO B02–B05 · Last verified 2026-06-25 · Sources · How we verify content.