A Crushing Attack Against the King’s Indian

The Four Pawns Attack is one of the most ambitious ways to meet the King’s Indian. White grabs a huge centre early on, but in return, those pawns can become targets if Black strikes back correctly.
In this game, we get a perfect illustration of both sides of that idea:
White overextends slightly... Black gets chances... and then, with one perfectly timed pawn sacrifice, everything flips.

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1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4

White goes for the Four Pawns Attack. It’s aggressive, almost excessive: four pawns standing together make up an imposing centre, but also gives Black some clear targets that they can work on.

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5... O-O 6. Nf3 c5 7. d5 e6

Black uses the standard plan: strike at the centre and aim for a Benoni-type structure. Against such a large pawn mass, undermining it quickly is critical.

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8. Be2 exd5 9. cxd5 Bg4

Instead of diving into heavy theory with ...Re8 e5, Black chooses a practical route: exchange on f3 and make it harder for White to support the e5 break later.

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10. O-O Re8 11. h3 Bxf3 12. Bxf3 Na6

Everything is still fairly standard. Black prepares typical ideas like ...Nc7 and ...b5 or potentially ...c4 + ...Nc5.

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13. g4

A slightly premature expansion.
This is a thematic idea in the Four Pawns Attack, but timing is everything.
Here, White could have improved with quieter preparation like Kh1, Be3, or even already considering e5.
Instead, this gives Black access to squares like c5 and d3.

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13... Nd7

A pretty important moment.
Black doesn't go for ...c4 followed by ...Nc5 or ...Nb4-d3, likely fearing the e5 break. But in doing so, they step away from the centre and reduce pressure on White’s pawns.

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14. e5

And White plays it anyway. The very move Black was trying so hard to avoid.
This is a pure pawn sacrifice, and a very thematic one in these structures.
It's actually not at all uncommong for White to play e5 in moments you'd never expect in Four Pawns Attack.
White just wants one thing:
to unleash the light-squared bishop.

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14... dxe5 15. d6

A very logical follow-up.
White could also consider f5 instead, but d6 fits perfectly with the idea:

• restrict Black
• open diagonals
• prepare long-term pressure

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15... c4

Black chooses an indirect defence of b7 (...Qb6+ ideas), but this misses a much sharper option.
Instead, Black could have gone all-in:
15... exf4 16. Bxb7 Rb8 17. Bxa6 Qh4
Now suddenly it’s Black attacking.
White’s king becomes the target, and the position is extremely dangerous.
In the game, Black chooses safety, but that gives White time to execute their plan.

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16. Bd5

This is the dream.
The bishop lands on d5 and becomes an absolute monster:

• controls both diagonals
• has no Black counterpart
• dominates the position

Everything now revolves around this piece.

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16... Qb6+ 17. Kh1 e4??

This is the decisive mistake.
It’s not just inaccurate, it’s completely out of tune with the position.

• It doesn’t challenge the bishop on d5
• It doesn’t address White’s attacking ideas
• It wastes a critical tempo

Black desperately needed moves like Nf6 or Nb4, directly fighting for control of d5 and challenging the authority of White's monstrous bishop.
Even something passive like Rf8 was far more sensible.
Instead, Black plays a move that in a grand scheme of things does nothing, and in positions like this, that’s fatal. I guess that this move aims to activate dark-squared bishop, but this wasn't needed at all, and any kind of counterplay with pushing the e-pawn is an illusion.

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And now comes the point.

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18. Bxf7+!

A stunning bishop sacrifice.
White could have continued more quietly with f5, which was also looking very good for White, but this is far stronger, and far more precise.
The key idea:

• drag the king to f7
• open lines
• unleash the attack immediately

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18... Kxf7 19. Qd5+ Kf8

This check is crucial.
Black's king is forced onto f8, the worst possible square:

• directly in line with the f-file
• exposed to all of White’s attacking ideas

This is why controlling d5 earlier was so important for Black. Without it, this check becomes unstoppable.

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20. f5

Everything now points to one file: the f-file.
Black has only one idea left: delay.

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20... g5

This is the only way not to resign immediately, trying to keep the f-file closed for as long as possible.

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21. f6!

This is the real killer move.
At first glance, it looks like White is just throwing another pawn, but in reality, this move makes the entire attack work.
Without it:

• Black plays Nf6
• the attack collapses

With it:

• the f-file is almost guaranteed to open
• any knight on f6 will be pinned
• the attack becomes unstoppable

This is the moment where the position goes from “strong attack” to “completely winning.”

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Black is already lost, but let’s see why everything fails:

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21... Bxf6 22. Bxg5
Black collapses on the f-file.
21... Nxf6 22. Bxg5 Qc6 23. Rxf6+ Bxf6 24. Bh6+ Bg7 25. Rf1#
A clean mating pattern.
21... Bh8 22. Bxg5
No defence against Bh6+ and mate. Same goes for 21... Bh6 retreat.

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21... e3

A desperate attempt at counterplay, but far too slow.

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22. fxg7+ Kxg7 23. Rf7+ Kh8 24. Qf5

And that’s it.
Checkmate on h7 is unavoidable:

• Nf8 → Qf6+ Qg7#
• nothing can cover the attack

Black resigns.

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Key Takeaways

1. The centre is a weapon, but only if you use it

The Four Pawns Attack gives White a huge space advantage, but it must be converted into activity.

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2. e5 is often the turning point

Even when it “shouldn’t work,” this pawn break can completely transform the position by activating the pieces.

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3. The bishop on d5 was the real hero

Everything flowed from that square:

• control
• pressure
• tactical possibilities

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4. Bxf7+ was possible because of the position, not calculation alone

The sacrifice works because:

• the king is vulnerable
• the f-file is ready to open
• all White’s pieces are coordinated

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5. f6!! is the move that actually wins

Without it, Black survives.
With it, the position collapses right there on the spot.

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This game is a perfect example of how positional dominance turns into a tactical explosion.
White didn’t just attack, they prepared the conditions for the attack to succeed.
And when the moment came...
Bxf7+!! ended it instantly.