ECO C40: Latvian Gambit, King's Pawn Game & more
ECO C40 is part of volume C, Open Games.
The Lichess chess-openings dataset files 40 named lines under it, from 6 different openings.
The shortest is King's Knight Opening:
1. e4 e5 2. Nf3.
That position has come up in 340,396,771 Lichess games between players rated 1600 to 2500: White won 50.7%, 4.7% were drawn and Black won 44.6%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| King's Knight Opening | 1. e4 e5 2. Nf3 |
340.4M | 2 moves |
| Elephant Gambit | 1. e4 e5 2. Nf3 d5 |
7.7M | 2 moves |
| Gunderam Defense | 1. e4 e5 2. Nf3 Qe7 |
612K | 2 moves |
| King's Pawn Game: Busch-Gass Gambit | 1. e4 e5 2. Nf3 Bc5 |
7M | 2 moves |
| King's Pawn Game: Damiano Defense | 1. e4 e5 2. Nf3 f6 |
950K | 2 moves |
| King's Pawn Game: Gunderam Gambit | 1. e4 e5 2. Nf3 c6 |
682K | 2 moves |
| King's Pawn Game: McConnell Defense | 1. e4 e5 2. Nf3 Qf6 |
4.2M | 2 moves |
| Latvian Gambit | 1. e4 e5 2. Nf3 f5 |
3.7M | 2 moves |
| Latvian Gambit Accepted | 1. e4 e5 2. Nf3 f5 3. exf5 |
1.2M | 3 moves |
| Latvian Gambit: Diepstraten Countergambit | 1. e4 e5 2. Nf3 f5 3. c4 |
874 | 3 moves |
| Latvian Gambit: Lobster Gambit | 1. e4 e5 2. Nf3 f5 3. g4 |
156 | 3 moves |
| Latvian Gambit: Mason Countergambit | 1. e4 e5 2. Nf3 f5 3. d4 |
284K | 3 moves |
| Latvian Gambit: Mayet Attack | 1. e4 e5 2. Nf3 f5 3. Bc4 |
247K | 3 moves |
| Latvian Gambit: Mlotkowski Variation | 1. e4 e5 2. Nf3 f5 3. Nc3 |
457K | 3 moves |
| Latvian Gambit: Senechaud Gambit | 1. e4 e5 2. Nf3 f5 3. b4 |
16 | 3 moves |
| Elephant Gambit: Maróczy Gambit | 1. e4 e5 2. Nf3 d5 3. exd5 Bd6 |
207K | 3 moves |
| Elephant Gambit: Paulsen Countergambit | 1. e4 e5 2. Nf3 d5 3. exd5 e4 |
3.2M | 3 moves |
| King's Pawn Game: Busch-Gass Gambit, Chiodini Gambit | 1. e4 e5 2. Nf3 Bc5 3. Nxe5 Nc6 |
102K | 3 moves |
| King's Pawn Game: Gunderam Defense, Gunderam Gambit | 1. e4 e5 2. Nf3 Qe7 3. Bc4 f5 |
1,306 | 3 moves |
| Latvian Gambit: Fraser Defense | 1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6 |
138K | 3 moves |
| Latvian Gambit: Greco Variation | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qe7 |
61K | 3 moves |
| Latvian Gambit: Mayet Attack, Morgado Defense | 1. e4 e5 2. Nf3 f5 3. Bc4 Nf6 |
87K | 3 moves |
| Latvian Gambit: Mayet Attack, Strautins Gambit | 1. e4 e5 2. Nf3 f5 3. Bc4 b5 |
1,495 | 3 moves |
| King's Pawn Game: La Bourdonnais Gambit | 1. e4 e5 2. Nf3 Qf6 3. Bc4 Qg6 4. O-O |
6,978 | 4 moves |
| Latvian Gambit Accepted: Foltys-Leonhardt Variation | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 |
40K | 4 moves |
| Latvian Gambit Accepted: Main Line | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 |
363K | 4 moves |
| Elephant Gambit: Wasp Variation | 1. e4 e5 2. Nf3 d5 3. Nxe5 dxe4 4. Bc4 Qg5 |
41K | 4 moves |
| King's Pawn Game: Damiano Defense, Damiano Gambit, Chigorin Gambit | 1. e4 e5 2. Nf3 f6 3. Nxe5 Qe7 4. Nf3 d5 |
4,169 | 4 moves |
| Latvian Gambit: Corkscrew Countergambit | 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6 |
22K | 4 moves |
| Latvian Gambit: Mayet Attack, Polerio-Svedenborg Variation | 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 |
43K | 4 moves |
| Latvian Gambit Accepted: Bilguer Variation | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 |
228K | 5 moves |
| Latvian Gambit Accepted: Foltys Variation | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. d3 |
3,656 | 5 moves |
| Latvian Gambit Accepted: Leonhardt Variation | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. Nc3 |
18K | 5 moves |
| Latvian Gambit: Mayet Attack, Poisoned Pawn Variation | 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. d4 Qxg2 |
7,086 | 5 moves |
| King's Pawn Game: Damiano Defense, Damiano Gambit | 1. e4 e5 2. Nf3 f6 3. Nxe5 fxe5 4. Qh5+ g6 5. Qxe5+ Qe7 6. Qxh8 |
37K | 6 moves |
| Latvian Gambit Accepted: Bronstein Attack | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Be2 |
57K | 6 moves |
| Latvian Gambit Accepted: Nimzowitsch Attack | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3 |
23K | 6 moves |
| Latvian Gambit: Corkscrew Gambit | 1. e4 e5 2. Nf3 f5 3. Nxe5 Nf6 4. Bc4 fxe4 5. Nf7 Qe7 6. Nxh8 d5 |
13K | 6 moves |
| Latvian Gambit Accepted: Bronstein Gambit | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Qh5+ g6 7. Qe2 |
493 | 7 moves |
| Latvian Gambit: Behting Variation | 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6 |
1,968 | 7 moves |