| ECO |
Opening Name |
MOVES (Algebraic System) |
| |
|
|
| D00-D09 |
Queen's pawn game |
1.d4-d5 |
| |
Others (D00) |
2.Others |
| |
Richter-Veresov attack (D01) |
2.Nc3-Nf6; 3.Bg5 |
| |
2.Nf3 variation (D02-D05) |
2.Nf3 |
| |
Queen's gambit (D06-D09) |
2.c4 |
| |
|
|
| D10-D19 |
Queen's gambit declined: |
1.d4-d5; 2.c4-c6 |
| |
Slav defense |
|
| |
Others (D10) |
3.Others |
| |
3.Nf3 variation (D11-D19) |
3.Nf3 |
| |
|
|
| D20-D29 |
Queen's gambit accepted |
1.d4-d5; 2.c4-dxc4 |
| |
Others (D20) |
3.Others |
| |
3.Nf3 (D21-D29) |
3.Nf3 |
| |
|
|
| D30-D39 |
Queen's gambit declined |
1.d4-d5; 2.c4-e6 |
| |
Others (D30) |
3.Others |
| |
3.Nc3 (D31-D39) |
3.Nc3 |
| |
|
|
| D40-D49 |
Queen's gambit declined: |
1.d4-d5; 2.c4-e6; 3.Nc3-Nf6; |
| |
semi-Tarrasch and semi- |
4.Nf3 |
| |
Slav |
|
| |
Semi-Tarrasch defense (D40-D42) |
4...c5 |
| |
Semi-Slav (D43-D49) |
4...c6 |
| |
|
|
| D50-D59 |
Queen's gambit declined |
1.d4-d5; 2.c4-e6; 3.Nc3-Nf6; |
| |
(4.Bg5) |
4.Bg5 |
| |
Others (D50) |
4...Others |
| |
4...Nbd7 variation (D51-D53) |
4...Nbd7 |
| |
4..Be7 variation (D54-D59) |
4...Be7 |
| |
|
|
| D60-D69 |
Queen's gambit declined: |
1.d4-d5; 2.c4-e6; 3.Nc3-Nf6; |
| |
Orthodox defense |
4.Bg5-Be7; 5.e3-O-O; 6.Nf3-Nbd7 |
| |
Others (D60) |
7.Others |
| |
Rubinstein variation (D61-D62) |
7.Qc2 |
| |
7.Rc1 variation (D63-D69) |
7.Rc1 |
| |
|
|
| D70-D79 |
Neo-Gruenfeld defense |
1.d4-Nf6; 2.c4-g6; 3.g3-d5; |
| |
|
4.Bg2-Bg7 |
| |
Others (D70) |
5.f3-d5 / 5.g3-d5 others |
| |
5.cxd5 variation (D71-D72) |
5.cxd5-Nxd5 |
| |
5.Nf3 variation (D73-D79) |
5.Nf3 |
| |
|
|
| D80-D89 |
Gruenfeld defense |
1.d4-Nf6; 2.c4-g6; 3.Nc3-d5 |
| |
Others (D80) |
4.g4 / 4.Bg5 |
| |
Russian variation (D81) |
4.Qb3 |
| |
4.Bf4 variation (D82-D84) |
4.Bf4 |
| |
Exchange variation (D85-D89) |
4.cxd5-Nxd5 |
| |
|
|
| D90-D99 |
Gruenfeld defense: three |
1.d4-Nf6; 2.c4-g6; 3.Nc3-d5; |
| |
knights variation |
4.Nf3 |
| |
Others (D90) |
4...c6 / 4...Bg7-others |
| |
5.Bg5 variation (D91) |
4...Bg7; 5.Bg5 |
| |
5.Bf4 (D92-D93) |
4...Bg7; 5.Bf4 |
| |
5.e3 (D94-D95) |
4...Bg7; 5.e5 |
| |
Russian variation (D96-D99) |
4...Bg7; 5.Qb3 |
