ECO C41
38 named openings and variations are classified as C41. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Philidor DefenseC411. e4 e5 2. Nf3 d6
- Philidor Defense: Albin-Blackburne GambitC411. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Nd7
- Philidor Defense: Berger VariationC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1
- Philidor Defense: Bird GambitC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. c3
- Philidor Defense: Boden VariationC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Bd7
- Philidor Defense: Exchange VariationC411. e4 e5 2. Nf3 d6 3. d4 exd4
- Philidor Defense: Hanham VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7
- Philidor Defense: Hanham Variation, Delmar VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. c3
- Philidor Defense: Hanham Variation, Krause VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O
- Philidor Defense: Hanham Variation, Schlechter VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3
- Philidor Defense: Hanham Variation, Sharp VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 Nb6
- Philidor Defense: Hanham Variation, Steiner VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O Be7 6. dxe5
- Philidor Defense: Hanham, Kmoch VariationC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5
- Philidor Defense: Larsen VariationC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6
- Philidor Defense: Lion VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7
- Philidor Defense: Lion Variation, Bishop SacrificeC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Bxf7+
- Philidor Defense: Lion Variation, Delayed Bishop SacrificeC411. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. dxe5 dxe5 7. Bxf7+
- Philidor Defense: Lion Variation, Forcing LineC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6
- Philidor Defense: Lion Variation, Lion's Claw, with Bc4 and h6C411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O h6
- Philidor Defense: Lion Variation, Lion's Claw, with Be2 and c6C411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Be2 Be7 6. O-O c6
- Philidor Defense: Lion Variation, Shirov GambitC411. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Nc3 Ngf6 5. g4
- Philidor Defense: Lion Variation, Sozin VariationC411. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4
- Philidor Defense: Lopez CountergambitC411. e4 e5 2. Nf3 d6 3. Bc4 f5
- Philidor Defense: Lopez Countergambit, Jaenisch VariationC411. e4 e5 2. Nf3 d6 3. d4 f5 4. Bc4 exd4 5. Ng5 Nh6 6. Nxh7
- Philidor Defense: Morphy GambitC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. Bc4
- Philidor Defense: Nimzowitsch VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6
- Philidor Defense: Nimzowitsch Variation, Klein VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4
- Philidor Defense: Nimzowitsch Variation, Rellstab VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5
- Philidor Defense: Nimzowitsch Variation, Sokolsky VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2
- Philidor Defense: Nimzowitsch, Larobok VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+
- Philidor Defense: Nimzowitsch, Locock VariationC411. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5
- Philidor Defense: Paulsen AttackC411. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 d5 5. exd5
- Philidor Defense: Philidor CountergambitC411. e4 e5 2. Nf3 d6 3. d4 f5
- Philidor Defense: Philidor Countergambit, Berger VariationC411. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Bc5 7. Nc3
- Philidor Defense: Philidor Countergambit, Zukertort VariationC411. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3
- Philidor Defense: Philidor Countergambit, del Rio AttackC411. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6
- Philidor Defense: Philidor GambitC411. e4 e5 2. Nf3 d6 3. d4 Bd7
- Philidor Defense: Steinitz VariationC411. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3