Chasing the King Across the Board in King's Indian

This game between Najdorf and Gligorić is one of those rare examples where the King’s Indian Defense doesn’t just promise an attack, it delivers it in the cleanest and most instructive way possible. Every phase follows classical logic: Black concedes space, prepares patiently, breaks at the right moment, and then hunts the king with absolute consistency.
We’ll start our detailed look from the moment where the strategic paths are fully defined.

A textbook Mar del Plata structure

After:
16...Rf7

We reach a completely classical Mar del Plata setup. Black has committed fully to a kingside initiative: the f-pawn is advanced, the g-pawn is ready to roll, rook is being lifted, and pieces are slowly rerouted toward the kingside. White, meanwhile, enjoys clear queenside space and a thematic pawn majority.
So far, everything is logical and correct from both sides. The plans are well known, and that is exactly what makes the next phase so instructive.

White rushes the queenside too early

17.cxd6?!

This exchange feels premature. In these structures, White usually delays this capture as long as possible, keeping the tension alive and preserving the option of a disruptive c6 push. Unless there is a concrete follow-up, such as a knight jumping into c7, releasing the central tension only helps Black.
After 17...cxd6, White’s queenside play loses some of its bite.

18.a4 comes a move too late. Without the c-pawn, the queenside expansion lacks its most annoying lever.

Black follows the script perfectly

From here on, Gligorić barely has to calculate. He simply executes known King’s Indian ideas with precision:
18...Bf8, preserving the important light-squared bishop
19...Rg7, preparing rook lifts
20...Nh8, a very typical King’s Indian maneuver

The knight retreat may look odd to the untrained eye, but it is entirely thematic. The knight is not aiming for the center. It is heading toward f7 and then h6, where it supports the critical g4 break — the very break White was trying so hard to avoid. Without that break, the g-file never opens and the attack never really begins.

The critical breakthrough

21...g4!

This is the moment Black has been preparing for. The pawn break lands with full force, and White is suddenly under serious pressure.
After:
22.fxg4 hxg4
23.hxg4
the kingside structure is shattered. Files are opening, and Black’s pieces are perfectly placed to exploit them.

Improving pieces before delivering the blow

Black continues with exemplary restraint:
24...Bd7–e8

The bishop quietly steps back to safety, ensuring it cannot be exchanged and remains a latent attacking piece. This is a recurring theme in strong King’s Indian play: attackers do not rush, they remove defensive resources first.
Then comes another key regrouping:
28...Nf7–h6

The knight finally arrives to support captures on g4 and to help rip open more lines.

White’s last hope: a queen trade

With the kingside collapsing, White tries the only thing that could save him:
31.Rc1, preparing Qc7 or Qc8 and desperately offering queen exchanges.

In positions like this, a queen trade would immediately defuse Black’s attack. Gligorić understands this perfectly and refuses it with great finesse.

The anti–queen-trade idea

31...Rg3!

A brilliant, multi-purpose move.

• It gains tempo by attacking the bishop on a3.
• It clears the diagonal d8–h4, creating an escape route for the queen.
• Most importantly, it ensures that queens stay on the board.

This is high-level King’s Indian play: attacking is not just about throwing pieces forward, it is about preventing the defender’s only escape.
After 32.Bb2 Nfg4, Black’s queen is free to swing toward the kingside, and the attack becomes unstoppable.

Why the queen exchange fails

If White were to try to exchange the queens:
34.Qc8?!
But now Black simply ignores the hanging bishop and plays:
34...Qg5!
The bishop on e8 is irrelevant. It does not need to participate. What matters is that the queen has joined the attack.
After 35.Qxe8 Rxg2+!!, the position collapses. I'm not 100% sure if Black saw all this from afar, but the thing with experienced King’s Indian players is that they often sense when the attack is decisive, even without calculating every branch.
The resulting line ends in a beautiful mate:
36...Ne3+ 37.Kf2 Qg3#

The game continuation: the king hunt

In the actual game, White avoids immediate mate, but the price is horrific.
The h-file opens, Black doubles major pieces, and then comes the devastating pawn thrust:
39...f3!

A classy move. The pawn is attacked three times, yet White cannot capture it in any way without losing the queen.
From here, the attack transforms into a full-blown king hunt.

The king’s journey across the board

After a series of precise checks and threats, we reach an astonishing moment:
48.Kc3

White’s king has run from g1 all the way to c3, chased relentlessly by Black’s pieces.
White resigned after 48...Qa1:

And it does not even end there.
If play were to continue, the king could realistically be driven even further:
49.Kb3 Bd1+
50.Rc2 Qb1+
51.Ka3

The king reaches the a-file, and remains completely helpless. Black continues the attack at leisure, while White’s queenside pieces, including the knights, rook, and bishop, never meaningfully participate in defense.

Final thoughts

This game is a near-perfect demonstration of how the King’s Indian Defense is meant to be played:

• Concede space without fear
• Prepare patiently
• Strike with the correct pawn break
• Prevent queen exchanges
• Convert the attack into a king hunt

Najdorf was one of the greatest attackers of his era, yet here he is the one being hunted.
If you want a model example of King’s Indian attacking play, this game is hard to beat.