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Classic game replay

Adolf Anderssen vs Louis Paulsen, 1876

This replay preserves the complete 85-ply score of Anderssen playing White across 43 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
Adolf Anderssen
Black
Louis Paulsen
Event
Leipzig m
Year
1876
Result
1-0
Opening
C13 French Defense: Classical Variation, Richter Attack

Opening reference: French Defense: Classical Variation, Richter Attack (C13).

In this game, 20 half-moves are labelled opening, 51 middlegame and 14 endgame. The score contains 23 captures and 5 checks or mates; before a recorded move, the position offered a median of 37 legal choices. The source score ends after 43.a6 with the recorded result 1-0. 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. 11.dxe6 — Exchange on e611.dxe6 was a leading choice in the fixed engine check.
  2. 14.Qg4 — Create pressure on e614.Qg4 was a leading choice in the fixed engine check.
  3. 21.Ne4 — Create pressure on g521.Ne4 was a leading choice in the fixed engine check.
  4. 30.h3 — Advance the h-pawn30.h3 was a leading choice in the fixed engine check.
  5. 37.Qxh5+ — Capture with check on h537.Qxh5+ 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.

♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜
Adolf Anderssen vs Louis Paulsen, 1876

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...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 d4.

  3. 2.d4 Claim central space

    Board fact: White moves the pawn from d2 to d4; from there it controls e5 and c5.

    Fixed engine check: Ranked first · d4 d5 e5 c5.

  4. 2...d5 Change the pawn structure

    Board fact: Black moves the pawn from d7 to d5; the move changes the central pawn contact; from d5 it attacks White's pawn on e4.

    Fixed engine check: Ranked first · d5 e5 c5 c3.

  5. 3.Nc3 Develop the knight

    Board fact: White develops the knight from b1 to c3; from c3 it attacks Black's pawn on d5.

    Fixed engine check: Ranked first · Nc3 Nf6 e5 Nfd7.

  6. 3...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 e5 Nfd7 f4.

  7. 4.Bg5 Develop the bishop

    Board fact: White develops the bishop from c1 to g5; from g5 it attacks Black's knight on f6.

    Fixed engine check: Ranked first · Bg5 h6 Bxf6 Qxf6.

  8. 4...Be7 Develop the bishop

    Board fact: Black develops the bishop from f8 to e7; from there it controls c5, d6 and f6.

    Fixed engine check: Near the leading choice · Be7 e5.

  9. 5.Bxf6 Exchange on f6

    Board fact: White's bishop takes the knight on f6; from f6 it attacks Black's bishop on e7 and Black's pawn on g7; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Playable; e5 ranked higher · Bxf6 Bxf6.

  10. 5...Bxf6 Recapture on f6

    Board fact: Black's bishop recaptures the bishop on f6; from f6 it attacks White's pawn on d4; material is level after the capture.

    Fixed engine check: Ranked first · Bxf6 e5.

  11. 6.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 O-O Qd2 c5.

  12. 6...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 Qd2 c5 dxc5.

  13. 7.Bd3 Develop the bishop

    Board fact: White develops the bishop from f1 to d3; from there it controls e4 and c4.

    Fixed engine check: Ranked first · Bd3 c5.

  14. 7...b6 Advance the b-pawn

    Board fact: Black moves the pawn from b7 to b6; from there it controls c5.

    Fixed engine check: Recorded move; c5 ranked higher · b6.

  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: Playable; e5 ranked higher · O-O g6 e5 Bg7.

  16. 8...c5 Change the pawn structure

    Board fact: Black moves the pawn from c7 to c5; the move changes the central pawn contact; from c5 it attacks White's pawn on d4.

    Fixed engine check: Ranked first · c5.

  17. 9.exd5 Exchange on d5

    Board fact: White's pawn takes the pawn on d5; the move changes the central pawn contact; White accepts doubled pawns on the d-file; from d5 it attacks Black's pawn on e6; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · exd5 cxd4 Ne4 exd5.

  18. 9...cxd4 Exchange on d4

    Board fact: Black's pawn takes the pawn on d4; the move changes the central pawn contact; from d4 it attacks White's knight on c3; material is level after the capture.

    Fixed engine check: Ranked first · cxd4 Ne4.

  19. 10.Nb5 Create pressure on a7

    Board fact: White moves the knight from c3 to b5; from b5 it attacks Black's pawn on a7 and Black's pawn on d4.

    Fixed engine check: Recorded move; Ne4 ranked higher · Nb5 e5 Re1 a6.

  20. 10...Bb7 Develop the bishop

    Board fact: Black develops the bishop from c8 to b7; from b7 it attacks White's pawn on d5.

    Fixed engine check: Recorded move; a6 ranked higher · Bb7 dxe6 fxe6 Qe2.

Middlegame · 11.dxe6 to 36.Rxb6

  1. 11.dxe6 Exchange on e6

    Board fact: White's pawn takes the pawn on e6; the move changes the central pawn contact; from e6 it attacks Black's pawn on f7; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · dxe6 Kh8 Nbxd4 Bxd4.

  2. 11...fxe6 Recapture on e6

    Board fact: Black's pawn recaptures the pawn on e6; the move changes the central pawn contact; material is level after the capture.

    Fixed engine check: Near the leading choice · fxe6 Nfxd4.

  3. 12.Nfxd4 Exchange on d4

    Board fact: White's knight takes the pawn on d4; from d4 it attacks Black's pawn on e6; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Nfxd4 Qd5 Qg4 a6.

  4. 12...Bxd4 Recapture on d4

    Board fact: Black's bishop recaptures the knight on d4; from d4 it attacks White's pawn on b2 and White's pawn on f2; black is ahead by 2 conventional material points after the capture.

    Fixed engine check: Near the leading choice · Bxd4 Nxd4 Qg5 f3.

  5. 13.Nxd4 Recapture on d4

    Board fact: White's knight recaptures the bishop on d4; from d4 it attacks Black's pawn on e6; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Nxd4 Qg5 f3 Kh8.

  6. 13...Qd5 Create pressure on d4

    Board fact: Black moves the queen from d8 to d5; from d5 it attacks White's knight on d4 and White's pawn on a2.

    Fixed engine check: Recorded move; Qh4 ranked higher · Qd5 Qg4 Rf6 Nxe6.

  7. 14.Qg4 Create pressure on e6

    Board fact: White moves the queen from d1 to g4; from g4 it attacks Black's pawn on e6 and Black's pawn on g7.

    Fixed engine check: Ranked first · Qg4 Rf6 Nxe6 Qxe6.

  8. 14...Rf6 Rook on the semi-open f-file

    Board fact: Black moves the rook from f8 to f6; the rook now works on a semi-open f-file; from f6 it attacks White's pawn on f2.

    Fixed engine check: Ranked first · Rf6 Nxe6 Qxe6 Qxe6+.

  9. 15.Rad1 Rook on the open d-file

    Board fact: White moves the rook from a1 to d1; the rook now occupies the open d-file; from there it controls d3.

    Fixed engine check: Playable; Nxe6 ranked higher · Rad1 h5 Qh3 Nd7.

  10. 15...h5 Create pressure on g4

    Board fact: Black moves the pawn from h7 to h5; from h5 it attacks White's queen on g4.

    Fixed engine check: Ranked first · h5 Qg3 Na6 Nb5.

  11. 16.Qh3 Create pressure on e6

    Board fact: White moves the queen from g4 to h3; from h3 it attacks Black's pawn on e6 and Black's pawn on h5.

    Fixed engine check: Near the leading choice · Qh3 Nd7 Nxe6 Qxe6.

  12. 16...Kf8 Reposition the king

    Board fact: Black moves the king from g8 to f8; from f8 it reinforces the pawn on g7.

    Fixed engine check: Recorded move; Nd7 ranked higher · Kf8 Nf3 Nc6 Be2.

  13. 17.Nb5 Create pressure on a7

    Board fact: White moves the knight from d4 to b5; from b5 it attacks Black's pawn on a7.

    Fixed engine check: Near the leading choice · Nb5 Nd7 Nc7 Qg5.

  14. 17...Na6 Develop the knight

    Board fact: Black develops the knight from b8 to a6; from there it controls c5.

    Fixed engine check: Ranked first · Na6 Nc3 Qe5 Rde1.

  15. 18.c4 Create pressure on d5

    Board fact: White moves the pawn from c2 to c4; from c4 it attacks Black's queen on d5.

    Fixed engine check: Recorded move; Nc3 ranked higher · c4 Qe5 Bb1 Qf4.

  16. 18...Qg5 Create pressure on b5

    Board fact: Black moves the queen from d5 to g5; from g5 it attacks White's knight on b5 and White's pawn on g2.

    Fixed engine check: Near the leading choice · Qg5 Nd6 Rf3 g3.

  17. 19.Nd6 Create pressure on b7

    Board fact: White moves the knight from b5 to d6; from d6 it attacks Black's bishop on b7.

    Fixed engine check: Ranked first · Nd6 Rf3 g3 Bc6.

  18. 19...Rf3 Rook on the semi-open f-file

    Board fact: Black moves the rook from f6 to f3; the rook now works on a semi-open f-file; from f3 it attacks White's queen on h3 and White's bishop on d3.

    Fixed engine check: Ranked first · Rf3 g3 Bc6 Be2.

  19. 20.Qxe6 Exchange on e6

    Board fact: White's queen takes the pawn on e6; from e6 it reinforces the knight on d6; white is ahead by 2 conventional material points after the capture.

    Fixed engine check: Recorded move; g3 ranked higher · Qxe6 Rf6.

  20. 20...Rf6 Rook on the semi-open f-file

    Board fact: Black moves the rook from f3 to f6; the rook now works on a semi-open f-file; from f6 it attacks White's queen on e6 and White's pawn on f2.

    Fixed engine check: Ranked first · Rf6 Ne4.

  21. 21.Ne4 Create pressure on g5

    Board fact: White moves the knight from d6 to e4; from e4 it attacks Black's queen on g5 and Black's rook on f6.

    Fixed engine check: Ranked first · Ne4.

  22. 21...Qg6 Create pressure on e4

    Board fact: Black moves the queen from g5 to g6; from g6 it attacks White's knight on e4 and White's pawn on g2.

    Fixed engine check: Ranked first · Qg6 Qe5 Re8 Qb5.

  23. 22.Qd7 Create pressure on b7

    Board fact: White moves the queen from e6 to d7; from d7 it attacks Black's bishop on b7 and Black's pawn on g7.

    Fixed engine check: Recorded move; Qe5 ranked higher · Qd7 Bxe4.

  24. 22...Bxe4 Exchange on e4

    Board fact: Black's bishop takes the knight on e4; from e4 it attacks White's bishop on d3 and White's pawn on g2; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Bxe4 Bxe4 Qxe4 Rfe1.

  25. 23.Bxe4 Recapture on e4

    Board fact: White's bishop recaptures the bishop on e4; from e4 it attacks Black's queen on g6 and Black's rook on a8; white is ahead by 2 conventional material points after the capture.

    Fixed engine check: Ranked first · Bxe4 Qxe4.

  26. 23...Qxe4 Recapture on e4

    Board fact: Black's queen recaptures the bishop on e4; from e4 it attacks White's pawn on c4 and White's pawn on g2; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Qxe4 Rfe1 Qf4 h3.

  27. 24.Rfe1 Rook on the open e-file

    Board fact: White moves the rook from f1 to e1; the rook now occupies the open e-file; from e1 it attacks Black's queen on e4.

    Fixed engine check: Ranked first · Rfe1 Qf4 h3 h4.

  28. 24...Qxc4 Exchange on c4

    Board fact: Black's queen takes the pawn on c4; from c4 it attacks White's pawn on a2; black is ahead by 2 conventional material points after the capture.

    Fixed engine check: Recorded move; Qf5 ranked higher · Qxc4.

  29. 25.Rc1 Rook on the open c-file

    Board fact: White moves the rook from d1 to c1; the rook now occupies the open c-file; from c1 it attacks Black's queen on c4.

    Fixed engine check: Ranked first · Rc1.

  30. 25...Qg4 Create pressure on d7

    Board fact: Black moves the queen from c4 to g4; from g4 it attacks White's queen on d7 and White's pawn on g2.

    Fixed engine check: Ranked first · Qg4 Qb7 Rb8 Qxa6.

  31. 26.Qb7 Create pressure on a8

    Board fact: White moves the queen from d7 to b7; from b7 it attacks Black's rook on a8 and Black's knight on a6.

    Fixed engine check: Ranked first · Qb7 Rb8 Qxa6 Kg8.

  32. 26...Rb8 Create pressure on b7

    Board fact: Black moves the rook from a8 to b8; from b8 it attacks White's queen on b7.

    Fixed engine check: Ranked first · Rb8 Qxa6 Kg8 Qxa7.

  33. 27.Qxa6 Exchange on a6

    Board fact: White's queen takes the knight on a6; from a6 it attacks Black's pawn on a7 and Black's pawn on b6; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Qxa6 Rf7 h3 Qf5.

  34. 27...Qf5 Create pressure on f2

    Board fact: Black moves the queen from g4 to f5; from f5 it attacks White's pawn on f2.

    Fixed engine check: Near the leading choice · Qf5 Qxa7 Qxf2+ Kh1.

  35. 28.Qxa7 Exchange on a7

    Board fact: White's queen takes the pawn on a7; from a7 it attacks Black's rook on b8 and Black's pawn on b6; white is ahead by 2 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxa7 Qxf2+.

  36. 28...Qxf2+ Capture with check on f2

    Board fact: Black's queen takes the pawn on f2; the move checks White's king; from f2 it attacks White's rook on e1 and White's pawn on b2; white is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Qxf2+ Kh1 Qf4 h3.

  37. 29.Kh1 Answering the check

    Board fact: White answers the check by moving the king from g1 to h1; from h1 it reinforces the pawn on g2.

    Fixed engine check: Ranked first · Kh1 Qf4 h3 Qg3.

  38. 29...Qf4 Create pressure on c1

    Board fact: Black moves the queen from f2 to f4; from f4 it attacks White's rook on c1 and White's pawn on h2.

    Fixed engine check: Ranked first · Qf4 h3 Qg3 Qd7.

  39. 30.h3 Advance the h-pawn

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

    Fixed engine check: Ranked first · h3 Qg3 Qd7 Kg8.

  40. 30...Kg8 Reposition the king

    Board fact: Black moves the king from f8 to g8; from g8 it reinforces the pawn on g7.

    Fixed engine check: Recorded move; Rf7 ranked higher · Kg8 Rc7 Qg3 Qxb8+.

  41. 31.Rc7 Rook on the open c-file

    Board fact: White moves the rook from c1 to c7; the rook now occupies the open c-file; from c7 it attacks Black's pawn on g7.

    Fixed engine check: Ranked first · Rc7 Qg3 Qxb8+ Kh7.

  42. 31...Qg3 Create pressure on c7

    Board fact: Black moves the queen from f4 to g3; from g3 it attacks White's rook on c7 and White's rook on e1.

    Fixed engine check: Near the leading choice · Qg3 Qxb8+ Rf8 Rxg7+.

  43. 32.Qxb8+ Capture with check on b8

    Board fact: White's queen takes the rook on b8; the move checks Black's king; from b8 it attacks Black's pawn on b6; white is ahead by 6 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxb8+ Kh7 Rxg7+ Qxg7.

  44. 32...Kh7 Answering the check

    Board fact: Black answers the check by moving the king from g8 to h7; from h7 it reinforces the pawn on g7.

    Fixed engine check: Ranked first · Kh7 Rxg7+ Qxg7 Qe8.

  45. 33.Rg1 Improve the rook

    Board fact: White moves the rook from e1 to g1; from g1 it reinforces the pawn on g2.

    Fixed engine check: Ranked first · Rg1 Rf4 Rxg7+ Kxg7.

  46. 33...Rc6 Rook on the open c-file

    Board fact: Black moves the rook from f6 to c6; the rook now occupies the open c-file; from c6 it attacks White's rook on c7.

    Fixed engine check: Playable; Rf2 ranked higher · Rc6 Rc8 Qxb8 Rxb8.

  47. 34.Rb7 Rook reaches the seventh rank

    Board fact: White moves the rook from c7 to b7; the rook has reached the opponent’s second rank; from b7 it attacks Black's pawn on b6 and Black's pawn on g7.

    Fixed engine check: Recorded move; Rc8 ranked higher · Rb7 h4 Qxg3 hxg3.

  48. 34...Qg6 Create pressure on g2

    Board fact: Black moves the queen from g3 to g6; from g6 it attacks White's pawn on g2.

    Fixed engine check: Playable; h4 ranked higher · Qg6 Rc7 Rxc7 Qxc7.

  49. 35.Qe5 Create pressure on g7

    Board fact: White moves the queen from b8 to e5; from e5 it attacks Black's pawn on g7 and Black's pawn on h5.

    Fixed engine check: Ranked first · Qe5 Rc5 Qf4 Rd5.

  50. 35...Rc2 Rook on the open c-file

    Board fact: Black moves the rook from c6 to c2; the rook now occupies the open c-file; from c2 it attacks White's pawn on b2 and White's pawn on g2.

    Fixed engine check: Ranked first · Rc2 Re7 h4 a4.

  51. 36.Rxb6 Exchange on b6

    Board fact: White's rook takes the pawn on b6; from b6 it attacks Black's queen on g6; white is ahead by 7 conventional material points after the capture.

    Fixed engine check: Recorded move; Rc7 ranked higher · Rxb6 Qxb6 Qxh5+ Kg8.

Endgame · 36...Qxb6 to 43.a6

  1. 36...Qxb6 Recapture on b6

    Board fact: Black's queen recaptures the rook on b6; from b6 it attacks White's rook on g1 and White's pawn on b2; white is ahead by 2 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxb6 Qxh5+ Kg8 Qe8+.

  2. 37.Qxh5+ Capture with check on h5

    Board fact: White's queen takes the pawn on h5; the move checks Black's king; from h5 it reinforces the pawn on h3; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxh5+ Kg8 Qe8+ Kh7.

  3. 37...Qh6 Answering the check

    Board fact: Black answers the check by moving the queen from b6 to h6; from h6 it attacks White's queen on h5.

    Fixed engine check: Near the leading choice · Qh6 Qxh6+ Kxh6 Rb1.

  4. 38.Qf5+ A forcing check

    Board fact: White moves the queen from h5 to f5; the move checks Black's king; from f5 it attacks Black's rook on c2.

    Fixed engine check: Near the leading choice · Qf5+ Qg6 Qxg6+ Kxg6.

  5. 38...Qg6 Answering the check

    Board fact: Black answers the check by moving the queen from h6 to g6; from g6 it attacks White's queen on f5 and White's pawn on g2.

    Fixed engine check: Ranked first · Qg6 Qxg6+ Kxg6 Rb1.

  6. 39.Qxg6+ Capture with check on g6

    Board fact: White's queen takes the queen on g6; the move checks Black's king; from g6 it attacks Black's rook on c2 and Black's pawn on g7; white is ahead by 12 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxg6+ Kxg6 Rb1 Kf5.

  7. 39...Kxg6 Recapture on g6

    Board fact: Black's king recaptures the queen on g6; from g6 it reinforces the pawn on g7; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Kxg6 Rb1 Rc4 b4.

  8. 40.Rb1 Improve the rook

    Board fact: White moves the rook from g1 to b1; from b1 it reinforces the pawn on b2.

    Fixed engine check: Ranked first · Rb1 Rc4 Kh2 Ra4.

  9. 40...Kg5 Activate the king

    Board fact: Black moves the king from g6 to g5; from there it controls f4, f5 and f6.

    Fixed engine check: Playable; Rc4 ranked higher · Kg5 a4 Kf4 Kh2.

  10. 41.a4 Advance a passed pawn

    Board fact: White moves the pawn from a2 to a4; the pawn is now passed.

    Fixed engine check: Ranked first · a4 Kf4 Kh2 Rc4.

  11. 41...Kh4 Create pressure on h3

    Board fact: Black moves the king from g5 to h4; from h4 it attacks White's pawn on h3.

    Fixed engine check: Near the leading choice · Kh4 Kh2 g5 a5.

  12. 42.a5 Advance a passed pawn

    Board fact: White moves the pawn from a4 to a5; the pawn is now passed.

    Fixed engine check: Playable; Kh2 ranked higher · a5 Kg3 b4 g5.

  13. 42...g5 Advance the g-pawn

    Board fact: Black moves the pawn from g7 to g5; from there it controls f4.

    Fixed engine check: Recorded move; Kg3 ranked higher · g5 Kh2 g4 hxg4.

  14. 43.a6 Advance a passed pawn

    Board fact: White moves the pawn from a5 to a6; the pawn is now passed.

    Fixed engine check: Ranked first · a6 g4 hxg4 Kg3.

PGN

[Event "Leipzig m"] [Site "?"] [Date "1876.??.??"] [White "Anderssen, Adolf"] [Black "Paulsen, Louis"] [Result "1-0"] 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. Nf3 O-O 7. Bd3 b6 8. O-O c5 9. exd5 cxd4 10. Nb5 Bb7 11. dxe6 fxe6 12. Nfxd4 Bxd4 13. Nxd4 Qd5 14. Qg4 Rf6 15. Rad1 h5 16. Qh3 Kf8 17. Nb5 Na6 18. c4 Qg5 19. Nd6 Rf3 20. Qxe6 Rf6 21. Ne4 Qg6 22. Qd7 Bxe4 23. Bxe4 Qxe4 24. Rfe1 Qxc4 25. Rc1 Qg4 26. Qb7 Rb8 27. Qxa6 Qf5 28. Qxa7 Qxf2+ 29. Kh1 Qf4 30. h3 Kg8 31. Rc7 Qg3 32. Qxb8+ Kh7 33. Rg1 Rc6 34. Rb7 Qg6 35. Qe5 Rc2 36. Rxb6 Qxb6 37. Qxh5+ Qh6 38. Qf5+ Qg6 39. Qxg6+ Kxg6 40. Rb1 Kg5 41. a4 Kh4 42. a5 g5 43. a6 1-0

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 sha256:981c46dacb39631cc991583f8f0ff14eba534775dc612c993a88e6ffc9702569 and pins it in the selection manifest.
Exact Figshare tags:
White="Anderssen, Adolf"; Black="Paulsen, Louis"; Event="Leipzig m"; Date="1876.??.??"; Result="1-0". 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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