ECO C25
30 named openings and variations are classified as C25. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Vienna Gambit, with Max Lange DefenseC251. e4 e5 2. Nc3 Nc6 3. f4
- Vienna Gambit, with Max Lange Defense: Cunningham DefenseC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 Be7
- Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier GambitC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5
- Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit, Alapin VariationC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6
- Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit, Thorold VariationC251. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Nc3 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. d4
- Vienna Gambit, with Max Lange Defense: Hamppe-Muzio GambitC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3
- Vienna Gambit, with Max Lange Defense: Knight VariationC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3
- Vienna Gambit, with Max Lange Defense: Pierce GambitC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4
- Vienna Gambit, with Max Lange Defense: Quelle GambitC251. e4 e5 2. Nc3 Nc6 3. f4 Bc5 4. fxe5 d6
- Vienna Gambit, with Max Lange Defense: Steinitz GambitC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit, Fraser-Minckwitz DefenseC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 b6
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit, Main LineC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit, Paulsen DefenseC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d6
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit, Sörensen DefenseC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 g5
- Vienna Gambit, with Max Lange Defense: Steinitz Gambit, Zukertort DefenseC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d5
- Vienna GameC251. e4 e5 2. Nc3
- Vienna Game: Anderssen DefenseC251. e4 e5 2. Nc3 Bc5
- Vienna Game: Fyfe GambitC251. e4 e5 2. Nc3 Nc6 3. d4
- Vienna Game: Giraffe AttackC251. e4 e5 2. Nc3 Bc5 3. Qg4
- Vienna Game: Hamppe-Meitner VariationC251. e4 e5 2. Nc3 Bc5 3. Na4
- Vienna Game: Hamppe-Muzio GambitC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O
- Vienna Game: Hamppe-Muzio, Dubois VariationC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6
- Vienna Game: Max Lange DefenseC251. e4 e5 2. Nc3 Nc6
- Vienna Game: Omaha GambitC251. e4 e5 2. Nc3 d6 3. f4
- Vienna Game: Paulsen VariationC251. e4 e5 2. Nc3 Nc6 3. g3
- Vienna Game: Paulsen Variation, Mariotti GambitC251. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 h5 5. Nf3 h4
- Vienna Game: Philidor CountergambitC251. e4 e5 2. Nc3 Nc6 3. d4 f5
- Vienna Game: Pierce Gambit, Rushmere AttackC251. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6
- Vienna Game: Stanley Variation, Meitner-Mieses GambitC251. e4 e5 2. Nc3 Nc6 3. Bc4 Bc5 4. Qg4 Qf6 5. Nd5
- Vienna Game: Zhuravlev CountergambitC251. e4 e5 2. Nc3 Bb4 3. Qg4 Nf6