ATTACK · CALCULATION · COORDINATION

The fork behind the bishop offer

Matveeva combines pressure on the king with a double rook attack. Irina Krush vs Svetlana Matveeva, 15 October 2002.

15 minute studyAdvanced25 moves4 moments to think
Svetlana MatveevaWhite to move
Irina KrushStarting position
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Standard starting position. White to move.

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THE STORY BEGINS

Every piece has a part to play.

In this 2002 women’s World Cup quarterfinal game, Matveeva’s central and kingside play eventually produces a bishop offer and a knight fork. The sequence is useful because the offer is not explained by a guessed mating pattern. Follow the queen’s threats, the knight’s protected entry and the attacks that remain after the bishop is captured.

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.
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

In this 2002 women’s World Cup quarterfinal game, Matveeva’s central and kingside play eventually produces a bishop offer and a knight fork. The sequence is useful because the offer is not explained by a guessed mating pattern. Follow the queen’s threats, the knight’s protected entry and the attacks that remain after the bishop is captured.

Take these ideas to your next game

  1. Gain time against a bishop when the pawn advance has support.
  2. Bring the queen into the attack before offering material.
  3. Calculate a bishop offer through the defender’s intermediate moves.
  4. A protected knight fork can be stronger than an immediate check.
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 . d4
1 … Nf6
2 . c4
2 … g6
3 . Nc3
3 … d5
4 . cxd5
4 … Nxd5
5 . e4
5 … Nxc3
6 . bxc3
6 … Bg7
7 . Bc4
7 … c5
8 . Ne2
8 … O-O
9 . O-O
9 … Nc6
10 . Be3
10 … Bd7
11 . Rc1
11 … Rc8
12 . Qd2
12 … a6
13 . d5
13 … Ne5
14 . Bb3
14 … c4

c4 gains time against the bishop and restricts White’s pawn on c3. The pawn is a source of space and restriction rather than an automatic passer. White’s central pawns can still create play, so Black later challenges them and uses the open e-file. Compare the bishop retreats and the resulting central squares.

15 . Bc2
15 … e6
16 . Bd4
16 … exd5
17 . exd5
17 … Re8
18 . Rfe1
18 … Qh4

Qh4 brings the queen into the kingside attack. White can answer with a pawn advance that attacks the central knight. Black’s bishop then creates a new alignment toward the white queen. Follow these concrete threats before deciding which side is ahead in development or attack.

19 . f4
19 … Bh6
20 . Bf2
20 … Qg4
21 . Bg3
21 … Bf5
22 . h3
22 … Qh5
23 . Bd1
23 … Bxh3

Bxh3 offers the bishop while keeping further threats available. The recorded queen move is an intermediate attempt to resist. Black must still choose the right knight entry, and the second bishop also has a useful retreat. Judge the offer through those follow-up attacks instead of assuming that removing a king-cover pawn forces mate.

24 . Qd4
24 … Nd3

Nd3 creates a protected fork against both rooks. In the game, White captures the offered bishop and Black then moves the other bishop with an attack on the queen. The threats are linked: a queen move and a double rook attack must both be accounted for. The score ends with resignation rather than a recorded checkmate.

25 . gxh3
25 … Bg7

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

Think through the turning points

Move 14: Attack the bishop with the pawn

Which advance by the c5-pawn attacks the bishop on b3? In the game: c4. c4 gains time against the bishop and restricts White’s pawn on c3. The pawn is a source of space and restriction rather than an automatic passer. White’s central pawns can still create play, so Black later challenges them and uses the open e-file. Compare the bishop retreats and the resulting central squares.

Engine-supported alternatives

b5 f4 Ng4 Rcd1 Nxe3 Qxe3 Qc7 Bc2 e5 dxe6 Bxe6 f5 · +0.19 · depth 18

c4 Bc2 e6 f4 Nd3 dxe6 fxe6 Bxd3 cxd3 Nd4 e5 fxe5 · +0.21 · depth 18

e6 Bg5 · +0.33 · depth 18

Move 18: Bring the queen toward the king

Which queen move from d8 creates direct pressure against the pawn on h2? In the game: Qh4. Qh4 brings the queen into the kingside attack. White can answer with a pawn advance that attacks the central knight. Black’s bishop then creates a new alignment toward the white queen. Follow these concrete threats before deciding which side is ahead in development or attack.

Engine-supported alternatives

Qa5 Nf4 Qc7 h3 Bh6 Be3 Qd6 a4 b5 Rb1 Ra8 axb5 · -0.62 · depth 17

Qh4 Ra1 · -0.46 · depth 17

Qc7 Ng3 Qd6 Rcd1 f5 a4 Re7 Re2 b5 axb5 axb5 h3 · -0.46 · depth 16

Move 23: Offer the bishop with a follow-up

Which capture by the f5-bishop removes the pawn on h3? In the game: Bxh3. Bxh3 offers the bishop while keeping further threats available. The recorded queen move is an intermediate attempt to resist. Black must still choose the right knight entry, and the second bishop also has a useful retreat. Judge the offer through those follow-up attacks instead of assuming that removing a king-cover pawn forces mate.

Engine-supported alternatives

Bxh3 · -1.59 · depth 18

Qxh3 Qe3 Qh5 Nd4 Bg4 Qxe5 Rxe5 Rxe5 f5 Bc2 Bf8 Rb1 · -1.15 · depth 17

Nf3+ gxf3 Qxf3 Kh2 Re3 Rf1 Qxf1 Qxe3 Qxh3+ Kg1 Bf8 Ba4 · -0.97 · depth 17

Move 24: Fork both rooks

Which move by the e5-knight attacks the rooks on c1 and e1? In the game: Nd3. Nd3 creates a protected fork against both rooks. In the game, White captures the offered bishop and Black then moves the other bishop with an attack on the queen. The threats are linked: a queen move and a double rook attack must both be accounted for. The score ends with resignation rather than a recorded checkmate.

Engine-supported alternatives

Nd3 Rb1 Bg7 Qb6 Nxe1 Bxe1 Bxg2 Kxg2 Rxe2+ Bxe2 Qxe2+ Bf2 · -4.78 · depth 21

Ng4 d6 Bg7 Qd2 Bxg2 Kxg2 Ne3+ Kf2 Qh3 Qxe3 Rxe3 Kxe3 · -2.91 · depth 21

Bf8 fxe5 Bc5 gxh3 Rxe5 Kh2 Bxd4 cxd4 Rg5 Nf4 Qh6 h4 · -1.06 · depth 21

A CONNECTED IDEA

Find the next threat after the offer

Matveeva combines a bishop offer with a protected fork against both rooks. Compare Fischer’s queen offer and list the active threats that remain after the offered piece is captured.

Try it in The game of the century →

Pass the game on.

A good idea is even better shared.

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