ECO A41: Rat Defense, Modern Defense & more
ECO A41 is part of volume A, Flank Openings.
The Lichess chess-openings dataset files 10 named lines under it, from 7 different openings.
The shortest is Queen's Pawn Game:
1. d4 d6.
That position has come up in 23,375,505 Lichess games between players rated 1600 to 2500: White won 48.9%, 5.1% were drawn and Black won 46.0%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Queen's Pawn Game | 1. d4 d6 |
23.4M | 1 move |
| Old Indian Defense | 1. d4 d6 2. c4 |
9.5M | 2 moves |
| Rat Defense: English Rat | 1. d4 d6 2. c4 e5 |
1.5M | 2 moves |
| Wade Defense | 1. d4 d6 2. Nf3 Bg4 |
439K | 2 moves |
| Modern Defense | 1. d4 g6 2. c4 Bg7 3. Nc3 d6 |
4.3M | 3 moves |
| Modern Defense: Neo-Modern Defense | 1. d4 g6 2. c4 Bg7 3. e4 e5 |
53K | 3 moves |
| Rat Defense: English Rat, Lisbon Gambit | 1. d4 d6 2. c4 e5 3. dxe5 Nc6 |
170K | 3 moves |
| Rat Defense: English Rat, Pounds Gambit | 1. d4 d6 2. c4 e5 3. dxe5 Be6 |
5,346 | 3 moves |
| Robatsch Defense | 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 Bg4 |
187K | 4 moves |
| Zukertort Opening: Wade Defense, Chigorin Plan | 1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8 |
2,021 | 4 moves |