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Classic game replay

Adolf Anderssen vs Jean Dufresne, 1855

This replay preserves the complete 49-ply score of Anderssen playing White across 25 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
Jean Dufresne
Event
Berlin m2
Year
1855
Result
1-0
Opening
C52 Italian Game: Evans Gambit, Dufresne Defense

Opening reference: Italian Game: Evans Gambit, Dufresne Defense (C52).

In this game, 20 half-moves are labelled opening, 29 middlegame and 0 endgame. The score contains 14 captures and 1 checks or mates; before a recorded move, the position offered a median of 39 legal choices. The source score ends after 25.Nxh3 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. 8.Qb3 — Create pressure on b78.Qb3 was a leading choice in the fixed engine check.
  2. 14.Nbd2 — Develop the knight14.Nbd2 was a leading choice in the fixed engine check.
  3. 16.Ne4 — Improve the knight16.Ne4 was a leading choice in the fixed engine check.
  4. 21.Nxd2 — Exchange on d221.Nxd2 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.

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Adolf Anderssen vs Jean Dufresne, 1855

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...Rb8

  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...e5 Claim central space

    Board fact: Black moves the pawn from e7 to e5; from there it controls d4 and f4.

    Fixed engine check: Ranked first · e5 Nf3 Nc6 d4.

  3. 2.Nf3 Develop the knight

    Board fact: White develops the knight from g1 to f3; from f3 it attacks Black's pawn on e5.

    Fixed engine check: Ranked first · Nf3 Nc6 d4 exd4.

  4. 2...Nc6 Develop the knight

    Board fact: Black develops the knight from b8 to c6; from there it controls d4 and e5.

    Fixed engine check: Ranked first · Nc6 d4 exd4 Nxd4.

  5. 3.Bc4 Develop the bishop

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

    Fixed engine check: Ranked first · Bc4 Nf6 d3 d6.

  6. 3...Bc5 Develop the bishop

    Board fact: Black develops the bishop from f8 to c5; from c5 it attacks White's pawn on f2.

    Fixed engine check: Near the leading choice · Bc5 c3 Nf6 d4.

  7. 4.b4 Create pressure on c5

    Board fact: White moves the pawn from b2 to b4; from b4 it attacks Black's bishop on c5.

    Fixed engine check: Playable; c3 ranked higher · b4.

  8. 4...Bxb4 Exchange on b4

    Board fact: Black's bishop takes the pawn on b4; from b4 it attacks White's pawn on d2; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Ranked first · Bxb4.

  9. 5.c3 Create pressure on b4

    Board fact: White moves the pawn from c2 to c3; from c3 it attacks Black's bishop on b4.

    Fixed engine check: Ranked first · c3 Be7 d4 Na5.

  10. 5...Ba5 Create pressure on c3

    Board fact: Black moves the bishop from b4 to a5; from a5 it attacks White's pawn on c3.

    Fixed engine check: Ranked first · Ba5 d4.

  11. 6.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 e5.

    Fixed engine check: Ranked first · d4 exd4 O-O dxc3.

  12. 6...exd4 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; from d4 it attacks White's pawn on c3; black is ahead by 2 conventional material points after the capture.

    Fixed engine check: Ranked first · exd4 O-O Bb6 cxd4.

  13. 7.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: Ranked first · O-O Bb6 cxd4 d6.

  14. 7...d3 Advance a passed pawn

    Board fact: Black moves the pawn from d4 to d3; the pawn is now passed; the move changes the central pawn contact.

    Fixed engine check: Near the leading choice · d3.

  15. 8.Qb3 Create pressure on b7

    Board fact: White moves the queen from d1 to b3; from b3 it attacks Black's pawn on b7.

    Fixed engine check: Ranked first · Qb3 Qf6 e5 Qg6.

  16. 8...Qf6 Create pressure on f3

    Board fact: Black moves the queen from d8 to f6; from f6 it attacks White's knight on f3 and White's pawn on c3.

    Fixed engine check: Ranked first · Qf6 e5 Qg6 Rd1.

  17. 9.Re1 Improve the rook

    Board fact: White moves the rook from f1 to e1; from there it controls e4 and e3.

    Fixed engine check: Playable; e5 ranked higher · Re1 Nge7.

  18. 9...b5 Create pressure on c4

    Board fact: Black moves the pawn from b7 to b5; from b5 it attacks White's bishop on c4.

    Fixed engine check: Recorded move; Nge7 ranked higher · b5 Qxb5.

  19. 10.Bxb5 Exchange on b5

    Board fact: White's bishop takes the pawn on b5; from b5 it attacks Black's knight on c6 and Black's pawn on d3; black is ahead by 1 conventional material point after the capture.

    Fixed engine check: Near the leading choice · Bxb5 Nge7 Bxd3 Ne5.

  20. 10...Rb8 Rook on the open b-file

    Board fact: Black moves the rook from a8 to b8; the rook now occupies the open b-file; from b8 it attacks White's bishop on b5.

    Fixed engine check: Ranked first · Rb8 Qa4.

Middlegame · 11.e5 to 25.Nxh3

  1. 11.e5 Create pressure on f6

    Board fact: White moves the pawn from e4 to e5; from e5 it attacks Black's queen on f6.

    Fixed engine check: Near the leading choice · e5 Qg6 Qa4 Nge7.

  2. 11...Qg6 Create pressure on g2

    Board fact: Black moves the queen from f6 to g6; from g6 it attacks White's pawn on g2.

    Fixed engine check: Ranked first · Qg6 Qa4 Nge7 Ba3.

  3. 12.Qa4 Create pressure on a5

    Board fact: White moves the queen from b3 to a4; from a4 it attacks Black's bishop on a5.

    Fixed engine check: Ranked first · Qa4 Nge7 Ba3 Bb7.

  4. 12...Nge7 Develop the knight

    Board fact: Black develops the knight from g8 to e7; from there it controls d5, c6 and f5.

    Fixed engine check: Ranked first · Nge7 Ba3 Bb6 Nbd2.

  5. 13.Ba3 Develop the bishop

    Board fact: White develops the bishop from c1 to a3; from a3 it attacks Black's knight on e7.

    Fixed engine check: Ranked first · Ba3 Bb6 Nbd2 a6.

  6. 13...Bb6 Create pressure on f2

    Board fact: Black moves the bishop from a5 to b6; from b6 it attacks White's pawn on f2.

    Fixed engine check: Ranked first · Bb6 Nbd2 a6 Bc4.

  7. 14.Nbd2 Develop the knight

    Board fact: White develops the knight from b1 to d2; from there it controls e4, c4 and f3.

    Fixed engine check: Ranked first · Nbd2 a6 Bc4 O-O.

  8. 14...a6 Create pressure on b5

    Board fact: Black moves the pawn from a7 to a6; from a6 it attacks White's bishop on b5.

    Fixed engine check: Ranked first · a6 Bc4 O-O Ne4.

  9. 15.Bc4 Create pressure on a6

    Board fact: White moves the bishop from b5 to c4; from c4 it attacks Black's pawn on a6 and Black's pawn on d3.

    Fixed engine check: Ranked first · Bc4 O-O Ne4 d5.

  10. 15...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 Ne4 d5 exd6.

  11. 16.Ne4 Improve the knight

    Board fact: White moves the knight from d2 to e4; from there it controls c3, c5 and d6.

    Fixed engine check: Ranked first · Ne4 d6 exd6 cxd6.

  12. 16...d5 Create pressure on c4

    Board fact: Black moves the pawn from d7 to d5; from d5 it attacks White's bishop on c4 and White's knight on e4.

    Fixed engine check: Ranked first · d5 exd6 cxd6 Bxd3.

  13. 17.exd6 Exchange on d6

    Board fact: White's pawn takes the pawn on d6; the move changes the central pawn contact; from d6 it attacks Black's knight on e7 and Black's pawn on c7; material is level after the capture.

    Fixed engine check: Ranked first · exd6 cxd6 Bxd3 d5.

  14. 17...Bh3 Develop the bishop

    Board fact: Black develops the bishop from c8 to h3; from h3 it attacks White's pawn on g2.

    Fixed engine check: Recorded move; cxd6 ranked higher · Bh3 Nh4 Qg4 dxe7.

  15. 18.Nh4 Create pressure on g6

    Board fact: White moves the knight from f3 to h4; from h4 it attacks Black's queen on g6.

    Fixed engine check: Near the leading choice · Nh4 Qg4 dxe7 Ne5.

  16. 18...Qg4 Create pressure on e4

    Board fact: Black moves the queen from g6 to g4; from g4 it attacks White's knight on e4 and White's knight on h4.

    Fixed engine check: Ranked first · Qg4 dxe7 Bxg2 Nxg2.

  17. 19.dxe7 Exchange on e7

    Board fact: White's pawn takes the knight on e7; the pawn is now passed; the move changes the central pawn contact; from e7 it attacks Black's rook on f8; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · dxe7 Ne5 Ng3 Bxf2+.

  18. 19...Nxe7 Recapture on e7

    Board fact: Black's knight recaptures the pawn on e7; from e7 it reinforces the king on g8; white is ahead by 2 conventional material points after the capture.

    Fixed engine check: Playable; Ne5 ranked higher · Nxe7 Bxe7 d2 Nxd2.

  19. 20.Bxe7 Recapture on e7

    Board fact: White's bishop recaptures the knight on e7; from e7 it attacks Black's rook on f8; white is ahead by 5 conventional material points after the capture.

    Fixed engine check: Ranked first · Bxe7 Rbe8 Bxf8 Re5.

  20. 20...d2 Advance a passed pawn

    Board fact: Black moves the pawn from d3 to d2; the pawn is now passed; from d2 it attacks White's rook on e1.

    Fixed engine check: Playable; h6 ranked higher · d2 Nxd2 Rfe8 Bxf7+.

  21. 21.Nxd2 Exchange on d2

    Board fact: White's knight takes the pawn on d2; from d2 it reinforces the bishop on c4; white is ahead by 6 conventional material points after the capture.

    Fixed engine check: Ranked first · Nxd2 Qf4 Ne4 Rfe8.

  22. 21...g5 Create pressure on h4

    Board fact: Black moves the pawn from g7 to g5; from g5 it attacks White's knight on h4.

    Fixed engine check: Recorded move; Bxf2+ ranked higher · g5 Re4 Qc8 Bxg5.

  23. 22.Ne4 Create pressure on g5

    Board fact: White moves the knight from d2 to e4; from e4 it attacks Black's pawn on g5.

    Fixed engine check: Playable; Re4 ranked higher · Ne4 Qxh4 Bxg5 Bxf2+.

  24. 22...Qxh4 Exchange on h4

    Board fact: Black's queen takes the knight on h4; from h4 it attacks White's knight on e4 and White's pawn on f2; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxh4 Bxg5 Bxf2+ Nxf2.

  25. 23.Bxg5 Exchange on g5

    Board fact: White's bishop takes the pawn on g5; from g5 it attacks Black's queen on h4; white is ahead by 4 conventional material points after the capture.

    Fixed engine check: Ranked first · Bxg5 Bxf2+ Nxf2 Qxg5.

  26. 23...Bxf2+ Capture with check on f2

    Board fact: Black's bishop takes the pawn on f2; the move checks White's king; from f2 it attacks White's rook on e1; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Bxf2+ Nxf2 Qxg5 Nxh3.

  27. 24.Nxf2 Recapture on f2

    Board fact: White's knight recaptures the bishop on f2; from f2 it attacks Black's bishop on h3; white is ahead by 6 conventional material points after the capture.

    Fixed engine check: Ranked first · Nxf2 Qxg5 Nxh3 Qc5+.

  28. 24...Qxg5 Exchange on g5

    Board fact: Black's queen takes the bishop on g5; from g5 it attacks White's pawn on g2; white is ahead by 3 conventional material points after the capture.

    Fixed engine check: Ranked first · Qxg5 Nxh3 Qc5+ Kh1.

  29. 25.Nxh3 Exchange on h3

    Board fact: White's knight takes the bishop on h3; from h3 it attacks Black's queen on g5; white is ahead by 6 conventional material points after the capture.

    Fixed engine check: Ranked first · Nxh3 Qc5+ Kh1 Rfd8.

PGN

[Event "Berlin m2"] [Site "?"] [Date "1855.??.??"] [White "Anderssen, Adolf"] [Black "Dufresne, Jean"] [Result "1-0"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d3 8. Qb3 Qf6 9. Re1 b5 10. Bxb5 Rb8 11. e5 Qg6 12. Qa4 Nge7 13. Ba3 Bb6 14. Nbd2 a6 15. Bc4 O-O 16. Ne4 d5 17. exd6 Bh3 18. Nh4 Qg4 19. dxe7 Nxe7 20. Bxe7 d2 21. Nxd2 g5 22. Ne4 Qxh4 23. Bxg5 Bxf2+ 24. Nxf2 Qxg5 25. Nxh3 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:fdb2eae36d987a50e1da97c3f6a0fffbfc65781b248f91eff8df3ebb6157076d and pins it in the selection manifest.
Exact Figshare tags:
White="Anderssen, Adolf"; Black="Dufresne, Jean"; Event="Berlin m2"; Date="1855.??.??"; 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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