X20: Bird Opening: Wrong Russian
Named Variations:- (Symmetrical Variations)
- Symmetrical Variations: Uno
- Symmetrical Variations: Due
- Symmetrical Variations: Tre
- Symmetrical Variations: Quattro
- Symmetrical Variations: Cinque
- Symmetrical Variations: Sei
- Symmetrical Variations: Sette
- Symmetrical Variations: Otto
- Symmetrical Variations: Four Knights
- Sicilian Variation
Parent: Bird Opening
Move Order: 1. f4 f5 2. Nf3 Nf6
Move Order: 1. f4 f5 2. Nf3 Nf6

X20.0: Bird Opening: Wrong Russian, Symmetrical Variations
X20.0.0: Bird Opening: Wrong Russian, Symmetrical Variations: Uno
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6

X20.0.1: Bird Opening: Wrong Russian, Symmetrical Variations: Duo
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7

X20.0.2: Bird Opening: Wrong Russian, Symmetrical Variations: Tre
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5

X20.0.3: Bird Opening: Wrong Russian, Symmetrical Variations: Quattro
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6

X20.0.4: Bird Opening: Wrong Russian, Symmetrical Variations: Cinque
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O

X20.0.5: Bird Opening: Wrong Russian, Symmetrical Variations: Sei
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6

X20.0.6: Bird Opening: Wrong Russian, Symmetrical Variations: Sette
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6 9. b3 b6
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6 9. b3 b6

X20.0.7: Bird Opening: Wrong Russian, Symmetrical Variations: Otto
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6 9. b3 b6 10. Bb2 Bb7
Main Line: 11. d4 Ng4 12. Qc1 Nxe3 13. d5 exd5 14. Qxe3 d4 15. Qd2 dxc3 16. Bxc3 Bxc3 17. Qxc3
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 Nc6 7. O-O O-O 8. e3 e6 9. b3 b6 10. Bb2 Bb7
Main Line: 11. d4 Ng4 12. Qc1 Nxe3 13. d5 exd5 14. Qxe3 d4 15. Qd2 dxc3 16. Bxc3 Bxc3 17. Qxc3

X20.0.8: Bird Opening: Wrong Russian, Symmetrical Variations: Four Knights
Parent: Bird Opening: Wrong Russian, Symmetrical Variations
Move Order: 1. f4 f5 2. Nf3 Nf6 3. Nc3 Nc6
Main Line: 4. d3 d5 5. e3 e6 6. g3 Bd6 7. Nb5
Move Order: 1. f4 f5 2. Nf3 Nf6 3. Nc3 Nc6
Main Line: 4. d3 d5 5. e3 e6 6. g3 Bd6 7. Nb5

X20.1: Bird Opening: Wrong Russian, Sicilian Variation
Parent: Bird Opening: Wrong Russian
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 c5
Main Line: 4. Bg2 e6 5. b3 Be7 6. Bb2 Nc6 7. c4 d5 8. O-O O-O
Move Order: 1. f4 f5 2. Nf3 Nf6 3. g3 c5
Main Line: 4. Bg2 e6 5. b3 Be7 6. Bb2 Nc6 7. c4 d5 8. O-O O-O
