Tarrasch Defense: Classical Variation, Chandler Variation

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6

Tarrasch Defense: Classical Variation, Chandler Variation after 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6 87654321abcdefgh

The Tarrasch Defense: Classical Variation, Chandler Variation is a chess opening classified as ECO D34, reached after 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6. It is a line of the Tarrasch Defense. White is to move.

This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.

Engine evaluation: +0.59 (Stockfish, depth 29; best line 13. Qb3 Qd7 14. Rfd1 Rac8 15. Nxe6 fxe6)

ECO
D34
Moves
24 plies
FEN
r2qr1k1/pp2bpp1/2n1bn1p/3p4/3N4/2N1B1P1/PP2PPBP/2RQ1RK1 w - - 4 13
PGN
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Master games

4 over-the-board games are classified under this line (White 50%, draw 50%, Black 0%). The strongest:

Search all games of the Tarrasch Defense: Classical Variation, Chandler Variation and its sub-variations

Comes from

Tarrasch Defense: Classical Variation, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8

More Tarrasch Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.