STRATEGY · PIECE ACTIVITY · PASSED PAWN

The f-pawn makes a home for the knight

Carlsen builds a lasting bind against Firouzja. Magnus Carlsen vs Alireza Firouzja, 27 December 2021.

18 minute studyIntermediate53 moves4 moments to think
Alireza FirouzjaWhite to move
Magnus CarlsenStarting position
← → moves · F to flip
Legal moves only. Explore freely in Replay.
Read this position & keyboard help

Standard starting position. White to move.

Use left/right arrows for moves, Home/End for start/end, F to flip. Enter a legal move above without using the board. Space starts or pauses autoplay when the board is focused. Draw arrows with right-drag; user drawings are separate from teaching arrows.

THE STORY BEGINS

Every piece has a part to play.

Carlsen uses a pawn advance to challenge Black’s active rook and secure useful squares for his knight. The knight reaches e5, then helps the f-pawn advance toward Black’s king. Follow the support behind each pawn move: the final bind grows from coordinated pieces rather than a single immediate combination.

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53.
GAME BALANCE · WHITE’S PERSPECTIVE+0.37
Accessible evaluation values & provenance

Stockfish 17.1 · 75,000 nodes per position; 1,000,000 at key moments. Actual depth 12–21. Positive centipawns favour White; mate scores remain separate. Selective search is evidence, not proof.

Download complete engine evidence

The story behind the game

Carlsen uses a pawn advance to challenge Black’s active rook and secure useful squares for his knight. The knight reaches e5, then helps the f-pawn advance toward Black’s king. Follow the support behind each pawn move: the final bind grows from coordinated pieces rather than a single immediate combination.

Take these ideas to your next game

  1. A pawn move can attack a rook and secure a square.
  2. Centralize a knight before advancing its supporting pawn.
  3. A passed pawn can restrict the opposing king.
  4. Keep the queen and rook connected behind the bind.
Read the complete annotated game

Full game transcript, including the result and the answers. Original explanations by chessgames.info; game score from the sources below.

1 . e4
1 … c6
2 . d4
2 … d5
3 . e5
3 … Bf5
4 . c4
4 … e6
5 . Nc3
5 … Ne7
6 . h3
6 … Nd7
7 . Nf3
7 … Bg6
8 . b3
8 … Nf5
9 . Be2
9 … Bb4
10 . Bb2
10 … O-O
11 . O-O
11 … f6
12 . a3
12 … Ba5
13 . cxd5
13 … cxd5
14 . exf6
14 … Qxf6
15 . Rc1
15 … Nh4
16 . Nxh4
16 … Qxh4
17 . b4
17 … Bd8
18 . Bg4
18 … Bf5
19 . Bxf5
19 … Rxf5
20 . Qe2
20 … Nf8
21 . Nd1
21 … Bb6
22 . Ne3
22 … Rg5
23 . f4

f4 gains time against the rook and controls e5. The rook moves to g3 in the recorded continuation, so White still has to manage threats near the king. The pawn move also gives the knight a useful central destination later. Assess its attacking and positional roles together.

23 … Rg3
24 . Kh2
24 … Rg6
25 . Ng4
25 … Qd8
26 . a4
26 … Bc7
27 . b5
27 … Bd6
28 . Rc3
28 … Rc8
29 . Rxc8
29 … Qxc8
30 . Ne5

g3 is the strongest saved candidate; Qd3 and Rf3 also receive credit. Carlsen played Ne5, attacking the rook on g6 and occupying the central outpost. The saved comparison prefers preparing the position first, including support for f4. Study the outpost in the historical line while choosing one of the stronger supported moves for this exercise.

30 … Rf6
31 . Rc1
31 … Qd8
32 . g3
32 … Rf5
33 . Qd3
33 … g5
34 . Ng4
34 … Kg7
35 . Ne3
35 … Rf7
36 . f5

f5 gains space and creates further kingside threats. White’s knight has returned to e3 and can use g4 again. Black must consider pawn captures and the king’s available squares. Follow the pawn’s next advance to f6 alongside the pieces supporting it, rather than treating a passed pawn as sufficient on its own.

36 … Qd7
37 . Rf1
37 … h6
38 . Kg2
38 … Kg8
39 . Ng4
39 … Kg7
40 . f6+

f6+ drives the king back and fixes the kingside structure. Black’s king goes to h8 and White takes the h6 pawn with the knight. The f6 pawn continues to restrict the king, but White still coordinates queen, rook and knight before the final threats. Compare Black’s defensive rook moves in the saved lines.

40 … Kh8
41 . Nxh6
41 … Rh7
42 . Ng4
42 … Qe8
43 . Ba3
43 … Bxa3
44 . Qxa3
44 … Qc8
45 . Rc1
45 … Qe8
46 . Ne5
46 … Kg8
47 . Qf3
47 … Qd8
48 . Rf1
48 … Kh8
49 . Qe3
49 … Qc8
50 . Rf2
50 … g4
51 . h4
51 … Rh5
52 . Nf7+
52 … Kg8
53 . Ng5

Result: 1-0. The recorded score ends here; it does not imply checkmate.

Think through the turning points

Move 23: Challenge the active rook

Which f-pawn advance attacks the rook on g5? In the game: f4. f4 gains time against the rook and controls e5. The rook moves to g3 in the recorded continuation, so White still has to manage threats near the king. The pawn move also gives the knight a useful central destination later. Assess its attacking and positional roles together.

Engine-supported alternatives

f4 Rg6 Kh2 h5 a4 Qg3+ Kh1 Rf6 a5 Bd8 Rf3 Qh4 · +0.62 · depth 19

Kh1 Qe4 · +0.07 · depth 19

Ng4 h5 f4 Rf5 Ne5 Rxf4 Kh1 Rxf1+ Rxf1 Bc7 Qf3 Qf6 · +0.00 · depth 18

Move 30: Support the pawn before the knight jump

Which pawn move supports the pawn on f4? In the game: Ne5. g3 is the strongest saved candidate; Qd3 and Rf3 also receive credit. Carlsen played Ne5, attacking the rook on g6 and occupying the central outpost. The saved comparison prefers preparing the position first, including support for f4. Study the outpost in the historical line while choosing one of the stronger supported moves for this exercise.

Engine-supported alternatives

Qd3 h5 · +0.76 · depth 18

g3 h5 · +0.91 · depth 17

Rf3 h5 Ne5 Rf6 Rc3 Qe8 Bc1 Nd7 a5 Rf8 Nf3 Nf6 · +0.71 · depth 17

Ne5 Rf6 · +0.36 · depth 22

Move 36: Advance the f-pawn

Which pawn advance challenges the pawn on e6? In the game: f5. f5 gains space and creates further kingside threats. White’s knight has returned to e3 and can use g4 again. Black must consider pawn captures and the king’s available squares. Follow the pawn’s next advance to f6 alongside the pieces supporting it, rather than treating a passed pawn as sufficient on its own.

Engine-supported alternatives

f5 Qd7 · +0.62 · depth 20

Ba3 gxf4 Bxd6 Qxd6 Ng2 fxg3+ Qxg3+ Qxg3+ Kxg3 Ng6 a5 Kf6 · -1.33 · depth 19

Rg1 gxf4 gxf4+ Ng6 Ng2 Bxf4+ Nxf4 Rxf4 Qg3 Qf6 Bc1 Rf2+ · -1.33 · depth 19

Move 40: Advance with check

Which pawn move checks the king on g7? In the game: f6+. f6+ drives the king back and fixes the kingside structure. Black’s king goes to h8 and White takes the h6 pawn with the knight. The f6 pawn continues to restrict the king, but White still coordinates queen, rook and knight before the final threats. Compare Black’s defensive rook moves in the saved lines.

Engine-supported alternatives

f6+ Kh8 Nxh6 Rh7 Ng4 Qc8 Ba3 Bxa3 Qxa3 Rc7 Rf2 Rc3 · +4.03 · depth 21

b6 Qxa4 f6+ Kh8 Nxh6 Rh7 Ra1 Qb4 Ba3 Qxb6 Rb1 Qd8 · +2.86 · depth 21

Ne5 Bxe5 dxe5 Kh8 f6 Qd8 Rf2 d4 Qxd4 Rd7 Qc3 Rd3 · +2.61 · depth 21

A CONNECTED IDEA

A passed pawn needs continuing support

Compare Carlsen’s f-pawn with Krush’s advanced d-pawn. Name the supporting pieces after every exchange, then explain which defender the pawn ties down.

Try it in The king walks behind a supported passer →

Pass the game on.

A good idea is even better shared.

Position images download as SVG. Exact links use saved, validated variations. Unsaved exploration links return to the main-game position.