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Petrov's Defense
You play Black · 33 variations
Mixed practice
The machine picks a different variation every time.
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10 positions: find the next theory move in each. No take-backs, no hints.
Main variations · 24
- Classical AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d45 moves
- Classical Attack, Chigorin Variation, Main LineC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. Be29 moves
- Classical Attack, Maróczy VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh410 moves
- Classical Attack, Berger VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd210 moves
- Classical Attack, Krause VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c410 moves
- Classical Attack, Marshall Variation, Chinese GambitC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bg49 moves
- Classical Attack, Chigorin Variation, Browne AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. cxd59 moves
- Classical Attack, Mason VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O7 moves
- Classical Attack, Closed VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf65 moves
- Classical Attack, Marshall TrapC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+10 moves
- Modern AttackC431. e4 e5 2. Nf3 Nf6 3. d4 exd43 moves
- Modern Attack, Trifunovic VariationC431. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe57 moves
- Modern Attack, Bardeleben VariationC431. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 Nc5 6. Nxd4 Nc66 moves
- Modern Attack, Center AttackC431. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd45 moves
- Modern Attack, Tal GambitC431. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Bb55 moves
- Modern Attack, Murrey VariationC431. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc64 moves
- Modern Attack, Symmetrical VariationC431. e4 e5 2. Nf3 Nf6 3. d4 d53 moves
- Three Knights GameC421. e4 e5 2. Nf3 Nf6 3. Nc33 moves
- Nimzowitsch AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc35 moves
- Cochrane GambitC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf74 moves
- Cochrane Gambit, Bishop Check LineC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+5 moves
- Cochrane Gambit, Center VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d45 moves
- Stafford Gambit AcceptedC421. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. Nc3 Bc55 moves
- Stafford Gambit AcceptedC421. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc55 moves
Other variations · 9
- Cozio AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe25 moves
- Damiano Variation, Kholmov GambitC421. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2 Qe74 moves
- French AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d35 moves
- Italian VariationC421. e4 e5 2. Nf3 Nf6 3. Bc43 moves
- Karklins-Martinovsky VariationC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd34 moves
- Kaufmann AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c45 moves
- Millennium AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd35 moves
- Moody GambitC421. e4 e5 2. Nf3 Nf6 3. Qe2 Nc6 4. d44 moves
- Paulsen AttackC421. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc44 moves