The story behind the game
Karpov’s ninth game against Spassky in their 1974 Candidates semifinal is a lesson in improving pieces before the tactical finish. A rook lift frees the queen, a knight retreats to find a useful route and the queen eventually enters e6. The final rook capture depends on the coordination created by those earlier moves.
Take these ideas to your next game
- Make room for a useful queen transfer.
- Judge a knight retreat by its intended route.
- An active queen can restrict several pieces at once.
- Calculate a rook offer together with the next bishop attack.
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.
Kh1 is the strongest saved candidate; Qe2 and Qd2 also receive credit. Karpov played Rf2 to free f1 for the queen. The saved comparison prefers Kh1 by more than the exercise threshold, so the historical rook lift is not the required answer. Compare the central break e5 after both choices: the same strategic idea can be reached through different move orders.
Nb1 begins a rerouting manoeuvre toward d2 and f3. White’s centre restricts some direct routes. The retreat leaves the knight able to rejoin the game through d2 while White uses c3 to challenge the black knight on b4. Follow the coordination of pawn move and knight route instead of assigning a fixed value to a backward step.
Qe6 attacks e7 and puts pressure on Black’s coordination. Black answers by contesting the d-file. White exchanges one pair of rooks, brings the remaining rook to d1 and places the bishop on c5. Those moves create the alignment needed for the final capture on d8.
Rxd8 takes the bishop at the end of the recorded game. After a rook recapture on d8, consider Be7, attacking that rook and the pawn on f6. The queen on e6 supports this coordination near Black’s king. The published score stops at the rook capture; use the saved legal lines to inspect Black’s remaining choices before declaring any continuation forced.
Result: 1-0. The recorded score ends here; it does not imply checkmate.
Think through the turning points
Move 14: Compare the rook lift with a king move
The historical move was Rf2. Which king move steps off the g1–a7 diagonal first? In the game: Rf2. Kh1 is the strongest saved candidate; Qe2 and Qd2 also receive credit. Karpov played Rf2 to free f1 for the queen. The saved comparison prefers Kh1 by more than the exercise threshold, so the historical rook lift is not the required answer. Compare the central break e5 after both choices: the same strategic idea can be reached through different move orders.
Engine-supported alternatives
Kh1 e5 Nxc6 bxc6 fxe5 dxe5 Qe2 Qc8 Nb1 Qa6 Qxa6 Nxa6 · +1.29 · depth 19
Qe2 e5 · +1.17 · depth 19
Qd2 e5 Nxc6 bxc6 fxe5 dxe5 Qf2 Qc8 h3 h5 Rad1 Qe6 · +0.97 · depth 18
Rf2 e5 · +0.67 · depth 22
Move 24: Find a better knight route
Which knight retreat prepares a route through d2 toward f3? In the game: Nb1. Nb1 begins a rerouting manoeuvre toward d2 and f3. White’s centre restricts some direct routes. The retreat leaves the knight able to rejoin the game through d2 while White uses c3 to challenge the black knight on b4. Follow the coordination of pawn move and knight route instead of assigning a fixed value to a backward step.
Engine-supported alternatives
Nb1 c5 Kh2 Qe8 b3 Rac8 Rxd8 Bxd8 Na3 Nc6 Nb5 Be7 · +1.60 · depth 18
Re2 Rd7 Nb1 Bg3 Nd2 c5 Nb3 Bf4 Bxf4 exf4 e5 Nd5 · +0.87 · depth 17
Rxd8+ Rxd8 Nb1 Rd7 Bb6 Bg5 Na3 Bf4 Qc3 Qg5 Nc4 c5 · +0.84 · depth 17
Move 31: Enter the weak light squares
Which queen move attacks the bishop on e7 and reaches the sixth rank? In the game: Qe6. Qe6 attacks e7 and puts pressure on Black’s coordination. Black answers by contesting the d-file. White exchanges one pair of rooks, brings the remaining rook to d1 and places the bishop on c5. Those moves create the alignment needed for the final capture on d8.
Engine-supported alternatives
Qe6 Rad8 Rxd8 Bxd8 Rd1 Nb8 Bc5 Rh8 Bd6 Kh6 Bxb8 Qxb8 · +4.05 · depth 20
Rfd1 Rad8 Qe6 Rxd2 Rxd2 Nb8 Nh4 Rh8 g4 hxg4 Qxg4 g5 · +3.52 · depth 20
Nh4 Rad8 Rxd8 Bxd8 Rf3 Kh7 Rg3 g5 Nf5 Nb8 Bc5 Qf7 · +3.49 · depth 20
Move 35: Use the alignment on the d-file
Which rook capture removes Black’s bishop on d8? In the game: Rxd8. Rxd8 takes the bishop at the end of the recorded game. After a rook recapture on d8, consider Be7, attacking that rook and the pawn on f6. The queen on e6 supports this coordination near Black’s king. The published score stops at the rook capture; use the saved legal lines to inspect Black’s remaining choices before declaring any continuation forced.
Engine-supported alternatives
Rxd8 Rxd8 Be7 Rf8 Bxf8+ Kxf8 Qxf6+ Ke8 Qxg6+ Kd8 Qg8+ Kc7 · +5.39 · depth 21
Bd6 Qf7 Qxf7+ Kxf7 Bxb8 Be7 Bc7 Ra8 Nd2 Ra7 Bb6 Rd7 · +4.30 · depth 21
Bg1 Qf7 Qd6 Bc7 Qc5 Re8 Qa7 Re7 Bc5 Rd7 Rxd7 Nxd7 · +1.79 · depth 21
Every piece has a part to play.
Karpov’s ninth game against Spassky in their 1974 Candidates semifinal is a lesson in improving pieces before the tactical finish. A rook lift frees the queen, a knight retreats to find a useful route and the queen eventually enters e6. The final rook capture depends on the coordination created by those earlier moves.
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Accessible evaluation values & provenance
Stockfish 17.1 · 75,000 nodes per position; 1,000,000 at key moments. Actual depth 13–21. Positive centipawns favour White; mate scores remain separate. Selective search is evidence, not proof.
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