ECO family guide
Semi-Slav Defense — all variations and ECO codes
69 named lines across 9 ECO codes (D30–D49). Source: the CC0-licensed lichess.org opening database.
The main line
How the main line scores at your rating
Real Lichess win rates for 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6, playing as black — the family's other variations are not separately tracked for win rate yet, main line only.
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| Rating band | Games | White / draw / Black | Score for black |
|---|---|---|---|
| 1400-1600 | 756,655 | 51.4% / 4.0% / 44.6% | 46.6% |
| 1600-1800 | 1,655,016 | 50.7% / 4.5% / 44.7% | 47.0% |
| 1800-2000 | 2,831,074 | 50.7% / 5.3% / 44.0% | 46.6% |
| 2000+ | 4,058,488 | 51.1% / 6.5% / 42.4% | 45.6% |
All 69 named variations
Every named line in the Semi-Slav Defense family, from the CC0-licensed ECO classification — not separately tracked for win rate, but every ECO code and move sequence is real, sourced data.
- D43Semi-Slav Defense (main line) — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6
- D30Quiet Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2D30Quiet Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 Nbd7
- D31Accelerated Move Order — 1.d4 d5 2.c4 e6 3.Nc3 c6
Anti-Noteboom
- D31Stonewall Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5
- D31Portisch Gambit — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.g4
- D31Gunderam Gambit — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.f3
- D31Marshall Gambit — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4
- D31Forgotten Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Nc3
- D31Main Line — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2
- D31Tolush Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 Qxd4 7.Bxb4 Qxe4+ 8.Be2 c5 9.Bxc5 Qxg2
- D31Noteboom Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4
- D31Abrahams Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 Bxc3+ 7.bxc3 b5 8.axb5 cxb5
- D31Anti-Noteboom Gambit — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.g3
- D31Anti-Noteboom Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.Bg5
- D31Belyavsky Line — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.Bg5 f6
- D43Anti-Moscow Gambit — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 h6 6.Bh4
- D43Hastings Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3
- D43Moscow Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 h6 6.Bxf6 Qxf6
- D44Botvinnik Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4D44Botvinnik Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5
- D44Alatortsev System — 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 Nd5
- D44Ekstrom Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.exf6 gxh4 10.Ne5
- D44Lilienthal Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.g3
- D44Szabo Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.Qf3
- D45Accelerated Meran Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 a6
- D45Main Line — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3D46Main Line — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3D46Main Line — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 b6 7.b3 Bb7 8.Bd3 Be7 9.O-O O-O 10.Bb2
- D45Normal Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7D45Normal Variation — 1.Nf3 d5 2.e3 Nf6 3.c4 c6 4.Nc3 e6 5.b3 Bd6 6.Bb2 O-O 7.d4 Nbd7D45Normal Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 Nf6 5.e3 Nbd7 6.b3 Bd6 7.Bb2 O-O 8.Be2
- D45Rubinstein System — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 Nf6 5.e3 Nbd7 6.Ne5
- D45Stoltz Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2D45Stoltz Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 b6 7.b3D45Stoltz Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 b6 7.b3 Bb7D45Stoltz Variation — 1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.b3D45Stoltz Variation — 1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.b3 O-O 8.Bb2
- D45Center Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.e4
- D45Mikhalchishin Line — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.e4 dxe4 8.Nxe4 Nxe4 9.Qxe4 e5 10.dxe5
- D45Shabalov Attack — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.g4
- D45Stonewall Defense — 1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.Nc3 e6 5.e3 Ne4 6.Bd3 f5
- D46Bogoljubow Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 Be7
- D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 Bd6D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 Bd6 7.Qc2D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.b3 Bd6 7.Bb2 O-O 8.Bd3D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 b6 7.b3 Bb7 8.Bd3D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 Bd6 7.b3 O-O 8.Bb2 Re8 9.Bd3D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 Bd6 7.b3 O-O 8.Bb2 Qe7 9.Bd3D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nf3 e6 4.e3 Nf6 5.Nc3 Bd6 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Nbd7 9.O-O O-O 10.Qc2D46Chigorin Defense — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bd6 9.O-O Bb7 10.a3 O-O 11.Qc2
- D46Romih Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 Bb4
- D47Meran Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5D48Meran Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6D48Meran Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5
- D47Lundin Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 b4
- D47Wade Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7
- D47Kaidanov Gambit — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7 9.e4 b4 10.Na4 c5 11.e5 Nd5 12.O-O cxd4 13.Nxd4
- D47Larsen Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7 9.e4 b4 10.Na4 c5 11.e5 Nd5
- D48Old Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5
- D48Pirc Variation — 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 Nf6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 b4
- D48Reynolds' Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.d5
- D49Blumenfeld Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5
- D49Rabinovich Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Ng4
- D49Rellstab Attack — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.O-O Qd5 14.Qe2 Ba6 15.Bg5
- D49Sozin Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5D49Sozin Variation — 1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.O-O
- D49Stahlberg Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.Qf3
- D47Semi-Meran Variation — 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4
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