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Classic game replay

Ortvin Sarapu vs Garry Kasparov, 1982

This replay preserves the complete 92-ply score of Kasparov playing Black across 46 numbered moves. The board can be advanced one ply at a time; the notes stick to observable board changes rather than guessing at the players’ intentions.

On this page
  1. Practice positions
  2. Replay with move-by-move board facts
  3. PGN
  4. Sources and checking
  5. Continue with another game
White
Ortvin Sarapu
Black
Garry Kasparov
Event
Luzern ol (Men)
Year
1982
Result
0-1
Opening
B90 Sicilian Defense: Najdorf Variation, Lipnitsky Attack

Opening reference: Sicilian Defense: Najdorf Variation, Lipnitsky Attack (B90).

In this game, 20 half-moves are labelled opening, 72 middlegame and 0 endgame. The score contains 15 captures and 1 checks or mates; before a recorded move, the position offered a median of 39 legal choices. The source score ends after 46...Rxb2 with the recorded result 0-1. Its termination tag was not retained, so this record does not infer whether the game ended by resignation, time or another cause.

Practice positions

The daily trainer uses a short set of positions from this complete score. Each link goes to the exact half-move rather than only the numbered move.

  1. 12...Bxc6 — Recapture on c612...Bxc6 was a leading choice in the fixed engine check.
  2. 18...Nc4 — Create pressure on e318...Nc4 was a leading choice in the fixed engine check.
  3. 24...d5 — Change the pawn structure24...d5 was a leading choice in the fixed engine check.
  4. 31...Bxd7 — Recapture on d731...Bxd7 was a leading choice in the fixed engine check.
  5. 38...Rb7 — Rook on the semi-open b-file38...Rb7 was a leading choice in the fixed engine check.

Replay with move-by-move board facts

The board, fact panel and transcript use the same legal score. “Fixed engine check” means Stockfish 17.1, one thread, a fixed 25,000-node search and 3 candidate lines. It compares moves under one reproducible setting; it does not claim to reconstruct a player’s thoughts.

♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜
Ortvin Sarapu vs Garry Kasparov, 1982

Start position

Use Previous and Next on the board, or select a move in the transcript. The board fact and fixed engine check remain visible until you choose another move.

Opening · 1.e4 to 10...Bb7

  1. 1.e4 Claim central space

    Board fact: White moves the pawn from e2 to e4; from there it controls d5 and f5.

    Fixed engine check: Ranked first · e4 e5 Nf3 Nc6.

  2. 1...c5 Advance the c-pawn

    Board fact: Black moves the pawn from c7 to c5; from there it controls d4.

    Fixed engine check: Ranked first · c5 Nc3 Nc6 Nf3.

  3. 2.Nf3 Develop the knight

    Board fact: White develops the knight from g1 to f3; from there it controls d4 and e5.

    Fixed engine check: Ranked first · Nf3 e6 c3 d5.

  4. 2...d6 Advance the d-pawn

    Board fact: Black moves the pawn from d7 to d6; from there it controls e5 and c5.

    Fixed engine check: Ranked first · d6 Nc3 a6 d4.

  5. 3.d4 Change the pawn structure

    Board fact: White moves the pawn from d2 to d4; the move changes the central pawn contact; from d4 it attacks Black's pawn on c5.

    Fixed engine check: Ranked first · d4 cxd4 Nxd4 Nf6.

  6. 3...cxd4 Exchange on d4

    Board fact: Black's pawn takes the pawn on d4; the move changes the central pawn contact; Black accepts doubled pawns on the d-file; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · cxd4 Nxd4.

  7. 4.Nxd4 Recapture on d4

    Board fact: White's knight recaptures the pawn on d4; from d4 it reinforces the pawn on c2; material is level after the capture.

    Fixed engine check: Ranked first · Nxd4 Nf6 Nc3 a6.

  8. 4...Nf6 Develop the knight

    Board fact: Black develops the knight from g8 to f6; from f6 it attacks White's pawn on e4.

    Fixed engine check: Ranked first · Nf6 Nc3.

  9. 5.Nc3 Develop the knight

    Board fact: White develops the knight from b1 to c3; from there it controls d5 and e4.

    Fixed engine check: Ranked first · Nc3 g6 Be3 Nc6.

  10. 5...a6 Advance the a-pawn

    Board fact: Black moves the pawn from a7 to a6.

    Fixed engine check: Ranked first · a6 Bg5 Nbd7 Be2.

  11. 6.Bc4 Develop the bishop

    Board fact: White develops the bishop from f1 to c4; from c4 it attacks Black's pawn on a6 and Black's pawn on f7.

    Fixed engine check: Ranked first · Bc4 e6 Bb3 b5.

  12. 6...e6 Advance the e-pawn

    Board fact: Black moves the pawn from e7 to e6; from there it controls d5 and f5.

    Fixed engine check: Ranked first · e6 f4.

  13. 7.Bb3 Create pressure on e6

    Board fact: White moves the bishop from c4 to b3; from b3 it attacks Black's pawn on e6.

    Fixed engine check: Ranked first · Bb3 Be7 g4 h6.

  14. 7...Be7 Develop the bishop

    Board fact: Black develops the bishop from f8 to e7; from there it controls d6 and f6.

    Fixed engine check: Near the leading choice · Be7 g4.

  15. 8.O-O Kingside castling

    Board fact: White castles kingside, moving the king to g1 and the rook to f1. The move changes king safety and develops the rook in one turn.

    Fixed engine check: Near the leading choice · O-O b5.

  16. 8...b5 Advance the b-pawn

    Board fact: Black moves the pawn from b7 to b5; from there it controls c4.

    Fixed engine check: Ranked first · b5 a4 b4 Na2.

  17. 9.a3 Advance the a-pawn

    Board fact: White moves the pawn from a2 to a3.

    Fixed engine check: Playable; Qf3 ranked higher · a3 O-O.

  18. 9...O-O Kingside castling

    Board fact: Black castles kingside, moving the king to g8 and the rook to f8. The move changes king safety and develops the rook in one turn.

    Fixed engine check: Ranked first · O-O Qd3 Qb6 Be3.

  19. 10.Be3 Develop the bishop

    Board fact: White develops the bishop from c1 to e3; from there it controls d4 and f4.

    Fixed engine check: Ranked first · Be3.

  20. 10...Bb7 Develop the bishop

    Board fact: Black develops the bishop from c8 to b7; from b7 it attacks White's pawn on e4.

    Fixed engine check: Ranked first · Bb7 f3 Nbd7 Qe1.

Middlegame · 11.f3 to 46...Rxb2

  1. 11.f3 Advance the f-pawn

    Board fact: White moves the pawn from f2 to f3; from there it controls e4.

    Fixed engine check: Ranked first · f3 Nbd7 Kh1 Re8.

  2. 11...Nc6 Develop the knight

    Board fact: Black develops the knight from b8 to c6; from c6 it attacks White's knight on d4.

    Fixed engine check: Ranked first · Nc6 Nxc6.

  3. 12.Nxc6 Exchange on c6

    Board fact: White's knight takes the knight on c6; from c6 it attacks Black's queen on d8 and Black's bishop on e7; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Nxc6 Bxc6.

  4. 12...Bxc6 Recapture on c6

    Board fact: Black's bishop recaptures the knight on c6; from c6 it attacks White's pawn on e4; material is level after the capture.

    Fixed engine check: Ranked first · Bxc6 Qe1 Qc7 Qg3.

  5. 13.Qd2 Create pressure on d6

    Board fact: White moves the queen from d1 to d2; from d2 it attacks Black's pawn on d6.

    Fixed engine check: Ranked first · Qd2 Qb8 Qf2 Rd8.

  6. 13...Nd7 Reroute the knight

    Board fact: Black moves the knight from f6 to d7; from there it controls e5, c5 and f6.

    Fixed engine check: Ranked first · Nd7 Rad1.

  7. 14.Rfd1 Rook on the semi-open d-file

    Board fact: White moves the rook from f1 to d1; the rook now works on a semi-open d-file; from d1 it reinforces the queen on d2.

    Fixed engine check: Ranked first · Rfd1.

  8. 14...Qc7 Reposition the queen

    Board fact: Black moves the queen from d8 to c7; from there it controls c6 and d6.

    Fixed engine check: Ranked first · Qc7 Qf2 a5 Ne2.

  9. 15.Qf2 Reposition the queen

    Board fact: White moves the queen from d2 to f2; from there it controls e3 and f3.

    Fixed engine check: Ranked first · Qf2 a5.

  10. 15...Rfe8 Improve the rook

    Board fact: Black moves the rook from f8 to e8; from e8 it reinforces the rook on a8.

    Fixed engine check: Ranked first · Rfe8 Ne2 Ne5 Bb6.

  11. 16.Ne2 Reroute the knight

    Board fact: White moves the knight from c3 to e2; from there it controls d4, c3 and f4.

    Fixed engine check: Ranked first · Ne2 a5 Nd4 a4.

  12. 16...Ne5 Create pressure on f3

    Board fact: Black moves the knight from d7 to e5; from e5 it attacks White's pawn on f3.

    Fixed engine check: Ranked first · Ne5 Kh1 Bd7 Bd4.

  13. 17.Nd4 Create pressure on c6

    Board fact: White moves the knight from e2 to d4; from d4 it attacks Black's bishop on c6 and Black's pawn on b5.

    Fixed engine check: Ranked first · Nd4.

  14. 17...Bd7 Reposition the bishop

    Board fact: Black moves the bishop from c6 to d7; from there it controls c6 and e6.

    Fixed engine check: Ranked first · Bd7 Ne2 a5 Bb6.

  15. 18.c3 Advance the c-pawn

    Board fact: White moves the pawn from c2 to c3; from there it controls d4.

    Fixed engine check: Ranked first · c3 Nc4 Kh1 a5.

  16. 18...Nc4 Create pressure on e3

    Board fact: Black moves the knight from e5 to c4; from c4 it attacks White's bishop on e3 and White's pawn on a3.

    Fixed engine check: Ranked first · Nc4.

  17. 19.Bc1 Reposition the bishop

    Board fact: White moves the bishop from e3 to c1; from there it controls e3 and f4.

    Fixed engine check: Ranked first · Bc1 d5.

  18. 19...Bf8 Reposition the bishop

    Board fact: Black moves the bishop from e7 to f8; from there it controls d6.

    Fixed engine check: Near the leading choice · Bf8 Kh1 a5 Qg3.

  19. 20.h3 Advance the h-pawn

    Board fact: White moves the pawn from h2 to h3.

    Fixed engine check: Ranked first · h3 d5.

  20. 20...Qb7 Create pressure on e4

    Board fact: Black moves the queen from c7 to b7; from b7 it attacks White's pawn on e4.

    Fixed engine check: Near the leading choice · Qb7 a4.

  21. 21.Bc2 Reposition the bishop

    Board fact: White moves the bishop from b3 to c2; from there it controls e4 and d3.

    Fixed engine check: Ranked first · Bc2.

  22. 21...Rac8 Rook on the semi-open c-file

    Board fact: Black moves the rook from a8 to c8; the rook now works on a semi-open c-file; from there it controls c4, c5 and c6.

    Fixed engine check: Ranked first · Rac8 b3 Ne5 f4.

  23. 22.Kh1 Reposition the king

    Board fact: White moves the king from g1 to h1; from h1 it reinforces the pawn on g2.

    Fixed engine check: Ranked first · Kh1 a5 Bd3 a4.

  24. 22...g6 Advance the g-pawn

    Board fact: Black moves the pawn from g7 to g6; from there it controls f5.

    Fixed engine check: Near the leading choice · g6 b3.

  25. 23.Nb3 Reroute the knight

    Board fact: White moves the knight from d4 to b3; from there it controls d4 and c5.

    Fixed engine check: Near the leading choice · Nb3.

  26. 23...Bg7 Develop the bishop

    Board fact: Black develops the bishop from f8 to g7; from g7 it attacks White's pawn on c3.

    Fixed engine check: Ranked first · Bg7 Nd4 d5 exd5.

  27. 24.Nd2 Create pressure on c4

    Board fact: White moves the knight from b3 to d2; from d2 it attacks Black's knight on c4.

    Fixed engine check: Ranked first · Nd2 d5 Nxc4 bxc4.

  28. 24...d5 Change the pawn structure

    Board fact: Black moves the pawn from d6 to d5; the move changes the central pawn contact; from d5 it attacks White's pawn on e4.

    Fixed engine check: Ranked first · d5 exd5 exd5 Nb3.

  29. 25.Nxc4 Exchange on c4

    Board fact: White's knight takes the knight on c4; from c4 it reinforces the pawn on a3; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Nxc4 bxc4 Re1 Qb8.

  30. 25...bxc4 Recapture on c4

    Board fact: Black's pawn recaptures the knight on c4; the move changes the central pawn contact; material is level after the capture.

    Fixed engine check: Ranked first · bxc4 Re1.

  31. 26.Rb1 Improve the rook

    Board fact: White moves the rook from a1 to b1; from b1 it reinforces the bishop on c1.

    Fixed engine check: Ranked first · Rb1 Bc6.

  32. 26...Bc6 Reposition the bishop

    Board fact: Black moves the bishop from d7 to c6; from there it controls d5.

    Fixed engine check: Ranked first · Bc6 Re1 dxe4 fxe4.

  33. 27.exd5 Exchange on d5

    Board fact: White's pawn takes the pawn on d5; the move changes the central pawn contact; from d5 it attacks Black's bishop on c6 and Black's pawn on e6; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Playable; Qh4 ranked higher · exd5 exd5 Bg5 Re6.

  34. 27...Bxd5 Recapture on d5

    Board fact: Black's bishop recaptures the pawn on d5; from d5 it attacks White's pawn on f3; material is level after the capture.

    Fixed engine check: Playable; exd5 ranked higher · Bxd5.

  35. 28.Be3 Develop the bishop

    Board fact: White develops the bishop from c1 to e3; from there it controls d4, c5 and f4.

    Fixed engine check: Ranked first · Be3 Be5.

  36. 28...Red8 Rook on the open d-file

    Board fact: Black moves the rook from e8 to d8; the rook now occupies the open d-file; from there it controls d5 and d6.

    Fixed engine check: Ranked first · Red8.

  37. 29.Bb6 Create pressure on d8

    Board fact: White moves the bishop from e3 to b6; from b6 it attacks Black's rook on d8.

    Fixed engine check: Ranked first · Bb6 Rf8 Be3 Be5.

  38. 29...Rd7 Rook on the open d-file

    Board fact: Black moves the rook from d8 to d7; the rook now occupies the open d-file; from there it controls d5 and d6.

    Fixed engine check: Ranked first · Rd7 Ba4 Rd6 Bc5.

  39. 30.Ba4 Create pressure on d7

    Board fact: White moves the bishop from c2 to a4; from a4 it attacks Black's rook on d7.

    Fixed engine check: Ranked first · Ba4 Rd6 Bc5 Rdd8.

  40. 30...Bc6 Create pressure on a4

    Board fact: Black moves the bishop from d5 to c6; from c6 it attacks White's bishop on a4 and White's pawn on f3.

    Fixed engine check: Ranked first · Bc6 Rxd7 Bxd7 Bxd7.

  41. 31.Rxd7 Exchange on d7

    Board fact: White's rook takes the rook on d7; the rook now occupies the open d-file; from d7 it attacks Black's queen on b7 and Black's pawn on f7; white is ahead by 5 conventional material points after the capture.

    Fixed engine check: Ranked first · Rxd7 Bxd7 Bc2 Bc6.

  42. 31...Bxd7 Recapture on d7

    Board fact: Black's bishop recaptures the rook on d7; from d7 it attacks White's bishop on a4; material is level after the capture.

    Fixed engine check: Ranked first · Bxd7 Bc2.

  43. 32.Bc2 Create pressure on g6

    Board fact: White moves the bishop from a4 to c2; from c2 it attacks Black's pawn on g6.

    Fixed engine check: Ranked first · Bc2 Rb8 Be3 Ra8.

  44. 32...Bc6 Create pressure on f3

    Board fact: Black moves the bishop from d7 to c6; from c6 it attacks White's pawn on f3.

    Fixed engine check: Ranked first · Bc6 a4 Bd5 a5.

  45. 33.Be3 Reposition the bishop

    Board fact: White moves the bishop from b6 to e3; from there it controls d4, c5 and f4.

    Fixed engine check: Near the leading choice · Be3 Be5 a4 Bd5.

  46. 33...Bd5 Create pressure on f3

    Board fact: Black moves the bishop from c6 to d5; from d5 it attacks White's pawn on f3.

    Fixed engine check: Ranked first · Bd5 Qg3 h5 Kg1.

  47. 34.Kg1 Reposition the king

    Board fact: White moves the king from h1 to g1; from g1 it reinforces the queen on f2.

    Fixed engine check: Ranked first · Kg1 Be5 Bd4 Bxd4.

  48. 34...Qb8 Create pressure on b2

    Board fact: Black moves the queen from b7 to b8; from b8 it attacks White's pawn on b2.

    Fixed engine check: Ranked first · Qb8 Ba7 Qb7 Bd4.

  49. 35.Qe2 Create pressure on c4

    Board fact: White moves the queen from f2 to e2; from e2 it attacks Black's pawn on c4.

    Fixed engine check: Near the leading choice · Qe2 Rd8 a4 Be5.

  50. 35...Rd8 Rook on the open d-file

    Board fact: Black moves the rook from c8 to d8; the rook now occupies the open d-file; from there it controls d5 and d6.

    Fixed engine check: Ranked first · Rd8.

  51. 36.Bf2 Reposition the bishop

    Board fact: White moves the bishop from e3 to f2; from there it controls d4, c5 and e3.

    Fixed engine check: Ranked first · Bf2 h5 a4 a5.

  52. 36...h5 Advance the h-pawn

    Board fact: Black moves the pawn from h7 to h5.

    Fixed engine check: Ranked first · h5 Kh1 Be5 Be4.

  53. 37.Qe1 Create pressure on e6

    Board fact: White moves the queen from e2 to e1; from e1 it attacks Black's pawn on e6.

    Fixed engine check: Ranked first · Qe1 Be5.

  54. 37...Rd7 Rook on the open d-file

    Board fact: Black moves the rook from d8 to d7; the rook now occupies the open d-file; from there it controls d5 and d6.

    Fixed engine check: Near the leading choice · Rd7 Bg3 Qc8 Qf2.

  55. 38.Ba4 Create pressure on d7

    Board fact: White moves the bishop from c2 to a4; from a4 it attacks Black's rook on d7.

    Fixed engine check: Playable; Bg3 ranked higher · Ba4.

  56. 38...Rb7 Rook on the semi-open b-file

    Board fact: Black moves the rook from d7 to b7; the rook now works on a semi-open b-file; from b7 it attacks White's pawn on b2.

    Fixed engine check: Ranked first · Rb7 Qc1.

  57. 39.Qd2 Create pressure on d5

    Board fact: White moves the queen from e1 to d2; from d2 it attacks Black's bishop on d5.

    Fixed engine check: Ranked first · Qd2 Be5 Kh1 Kh7.

  58. 39...Be5 Create pressure on c3

    Board fact: Black moves the bishop from g7 to e5; from e5 it attacks White's pawn on c3.

    Fixed engine check: Ranked first · Be5 Kh1 Bd6 Bd4.

  59. 40.Bd1 Reposition the bishop

    Board fact: White moves the bishop from a4 to d1; from there it controls f3.

    Fixed engine check: Near the leading choice · Bd1.

  60. 40...Bh2+ A forcing check

    Board fact: Black moves the bishop from e5 to h2; the move checks White's king; from there it controls e5, d6 and f4.

    Fixed engine check: Ranked first · Bh2+ Kh1 Bf4 Qe2.

  61. 41.Kf1 Answering the check

    Board fact: White answers the check by moving the king from g1 to f1; from f1 it reinforces the bishop on f2.

    Fixed engine check: Ranked first · Kf1 Bd6.

  62. 41...Bd6 Create pressure on a3

    Board fact: Black moves the bishop from h2 to d6; from d6 it attacks White's pawn on a3.

    Fixed engine check: Ranked first · Bd6.

  63. 42.Bd4 Reposition the bishop

    Board fact: White moves the bishop from f2 to d4; from there it controls e5, c3 and c5.

    Fixed engine check: Near the leading choice · Bd4 Bxa3 Qg5 Bd6.

  64. 42...Bxa3 Exchange on a3

    Board fact: Black's bishop takes the pawn on a3; from a3 it attacks White's pawn on b2; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Bxa3 Qg5 Bd6 Qf6.

  65. 43.Ra1 Rook on the semi-open a-file

    Board fact: White moves the rook from b1 to a1; the rook now works on a semi-open a-file; from a1 it attacks Black's bishop on a3.

    Fixed engine check: Near the leading choice · Ra1 Bd6 Qg5 Bf4.

  66. 43...Bd6 Reposition the bishop

    Board fact: Black moves the bishop from a3 to d6; from there it controls e5, c5 and f4.

    Fixed engine check: Ranked first · Bd6 Qg5 Bf4 Qf6.

  67. 44.Rxa6 Exchange on a6

    Board fact: White's rook takes the pawn on a6; the rook now occupies the open a-file; from a6 it attacks Black's bishop on d6; material is level after the capture.

    Fixed engine check: Near the leading choice · Rxa6 Bf4.

  68. 44...Bf4 Create pressure on d2

    Board fact: Black moves the bishop from d6 to f4; from f4 it attacks White's queen on d2.

    Fixed engine check: Ranked first · Bf4 Qe2 Rxb2 Bc2.

  69. 45.Be3 Create pressure on f4

    Board fact: White moves the bishop from d4 to e3; from e3 it attacks Black's bishop on f4.

    Fixed engine check: Playable; Qe2 ranked higher · Be3 Bxe3 Qxe3 Rxb2.

  70. 45...Bxe3 Exchange on e3

    Board fact: Black's bishop takes the bishop on e3; from e3 it attacks White's queen on d2; black is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Bxe3 Qxe3 Rxb2 Be2.

  71. 46.Qxe3 Recapture on e3

    Board fact: White's queen recaptures the bishop on e3; from e3 it attacks Black's pawn on e6; material is level after the capture.

    Fixed engine check: Ranked first · Qxe3 Rxb2 Be2 Rb1+.

  72. 46...Rxb2 Exchange on b2

    Board fact: Black's rook takes the pawn on b2; the rook now occupies the open b-file; from b2 it attacks White's pawn on g2; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Rxb2 Be2 Rb1+ Kf2.

PGN

[Event "Luzern ol (Men)"] [Site "?"] [Date "1982.??.??"] [White "Sarapu, Ortvin"] [Black "Kasparov, Garry"] [Result "0-1"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. O-O b5 9. a3 O-O 10. Be3 Bb7 11. f3 Nc6 12. Nxc6 Bxc6 13. Qd2 Nd7 14. Rfd1 Qc7 15. Qf2 Rfe8 16. Ne2 Ne5 17. Nd4 Bd7 18. c3 Nc4 19. Bc1 Bf8 20. h3 Qb7 21. Bc2 Rac8 22. Kh1 g6 23. Nb3 Bg7 24. Nd2 d5 25. Nxc4 bxc4 26. Rb1 Bc6 27. exd5 Bxd5 28. Be3 Red8 29. Bb6 Rd7 30. Ba4 Bc6 31. Rxd7 Bxd7 32. Bc2 Bc6 33. Be3 Bd5 34. Kg1 Qb8 35. Qe2 Rd8 36. Bf2 h5 37. Qe1 Rd7 38. Ba4 Rb7 39. Qd2 Be5 40. Bd1 Bh2+ 41. Kf1 Bd6 42. Bd4 Bxa3 43. Ra1 Bd6 44. Rxa6 Bf4 45. Be3 Bxe3 46. Qxe3 Rxb2 0-1

Sources and checking

Score source: Chess Database, version 1 by Ana Schaigorodsky (2016), licensed under CC BY 4.0. LibreChess selected the exact score identified by sha256:f3ac13edae49e6edbd1bfd476e352fe2780c9ceccab0b0f63c896fc061e737ed and pins it in the selection manifest.
Exact Figshare tags:
White="Sarapu, Ortvin"; Black="Kasparov, Garry"; Event="Luzern ol (Men)"; Date="1982.10.30"; Result="0-1". LibreChess parsed the main line with chess.js and stores normalised SAN. Source comments, side variations and termination detail were not retained.

LibreChess checks every SAN move with chess.js and compares the result and move sequence with a stored reference. The engine comparison was calculated offline from the fixed settings above; it is not a source for historical claims. No termination is inferred where the imported score does not preserve one.

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