ECO C26
10 named openings and variations are classified as C26. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Bishop's Opening: Horwitz GambitC261. e4 e5 2. Bc4 Nf6 3. Nc3 b5
- Bishop's Opening: Vienna Hybrid, Spielmann AttackC261. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3
- Vienna Game: Falkbeer VariationC261. e4 e5 2. Nc3 Nf6
- Vienna Game: Mengarini VariationC261. e4 e5 2. Nc3 Nf6 3. a3
- Vienna Game: Mieses VariationC261. e4 e5 2. Nc3 Nf6 3. g3
- Vienna Game: Mieses Variation, Erben GambitC261. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 c6
- Vienna Game: Paulsen Variation, Pollock GambitC261. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 Nc6 5. Nge2 d5 6. exd5
- Vienna Game: Stanley VariationC261. e4 e5 2. Nc3 Nf6 3. Bc4
- Vienna Game: Stanley Variation, Eifel GambitC261. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. Nge2 b5
- Vienna Game: Stanley Variation, Reversed SpanishC261. e4 e5 2. Nc3 Nf6 3. Bc4 Bb4