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Colle System
You play White · 11 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 · 8
- Colle SystemD051. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. b3 Be7 7. Bb2 O-O 8. Nbd2 d58 moves
- Colle SystemD051. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6 6. Bd36 moves
- Colle SystemD051. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6 6. Nbd26 moves
- Colle SystemD051. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd34 moves
- Colle System, Traditional ColleD051. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c35 moves
- Colle System, Grünfeld FormationD041. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg74 moves
- Colle System, Anti-ColleD041. d4 d5 2. Nf3 Nf6 3. e3 Bf53 moves
- Colle System, King's Indian VariationA481. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d64 moves