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ECO CODES
(Click on an opening description to see diagram)

C60 - C99

C60 Ruy Lopez (Spanish opening)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5
C60 Ruy Lopez: Nuernberg variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f7f6
C60 Ruy Lopez: Pollock defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 c6a5
C60 Ruy Lopez: Lucena defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8e7
C60 Ruy Lopez: Vinogradov variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 d8e7
C60 Ruy Lopez: Brentano defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g7g5
C60 Ruy Lopez: fianchetto (Smyslov/Barnes) defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g7g6
C60 Ruy Lopez: Cozio defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8e7
C60 Ruy Lopez: Cozio defence, Paulsen variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8e7 4. b1c3 g7g6
C61 Ruy Lopez: Bird's defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 c6d4
C61 Ruy Lopez: Bird's defence, Paulsen variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 c6d4 4. f3d4 e5d4 5. 0-0 g8e7
C62 Ruy Lopez: old Steinitz defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 d7d6
C62 Ruy Lopez: old Steinitz defence, Nimzovich attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 d7d6 4. d2d4 c8d7 5. b1c3 g8f6
6. b5c6
C62 Ruy Lopez: old Steinitz defence, semi-Duras variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 d7d6 4. d2d4 c8d7 5. c2c4
C63 Ruy Lopez: Schliemann defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f7f5
C63 Ruy Lopez: Schliemann defence, Berger variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f7f5 4. b1c3
C64 Ruy Lopez: classical (Cordel) defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5
C64 Ruy Lopez: classical defence, Zaitsev variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. 0-0 c6d4 5. b2b4
C64 Ruy Lopez: classical defence, 4.c3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. c2c3
C64 Ruy Lopez: classical defence, Benelux variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. c2c3 g8f6 5. 0-0 0-0
6. d2d4 c5b6
C64 Ruy Lopez: classical defence, Charousek variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. c2c3 c5b6
C64 Ruy Lopez: classical defence, Boden variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. c2c3 d8e7
C64 Ruy Lopez: Cordel gambit
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 f8c5 4. c2c3 f7f5
C65 Ruy Lopez: Berlin defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6
C65 Ruy Lopez: Berlin defence, Nyholm attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d4 e5d4 5. 0-0
C65 Ruy Lopez: Berlin defence, Mortimer variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d3 c6e7
C65 Ruy Lopez: Berlin defence, Mortimer trap
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d3 c6e7 5. f3e5 c7c6
C65 Ruy Lopez: Berlin defence, Anderssen variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d3 d7d6 5. b5c6
C65 Ruy Lopez: Berlin defence, Duras variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d3 d7d6 5. c2c4
C65 Ruy Lopez: Berlin defence, Kaufmann variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. d2d3 f8c5 5. c1e3
C65 Ruy Lopez: Berlin defence, 4.O-O
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0
C65 Ruy Lopez: Berlin defence, Beverwijk variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f8c5
C66 Ruy Lopez: Berlin defence, 4.O-O, d6
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6
C66 Ruy Lopez: Berlin defence, hedgehog variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 c8d7
6. b1c3 f8e7
C66 Ruy Lopez: Berlin defence, Tarrasch trap
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 c8d7
6. b1c3 f8e7 7. f1e1 0-0
C66 Ruy Lopez: closed Berlin defence, Bernstein variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 c8d7
6. b1c3 f8e7 7. c1g5
C66 Ruy Lopez: closed Berlin defence, Showalter variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 c8d7
6. b1c3 f8e7 7. b5c6
C66 Ruy Lopez: closed Berlin defence, Wolf variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 c8d7
6. b1c3 e5d4
C66 Ruy Lopez: closed Berlin defence, Chigorin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 d7d6 5. d2d4 f6d7
C67 Ruy Lopez: Berlin defence, open variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4
C67 Ruy Lopez: open Berlin defence, l'Hermet variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 e4d6
6. d4e5
C67 Ruy Lopez: open Berlin defence, Showalter variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 e4d6
6. b5a4
C67 Ruy Lopez: open Berlin defence, 5...Be7
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
C67 Ruy Lopez: Berlin defence, Rio de Janeiro variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 e4d6 7. b5c6 b7c6 8. d4e5 d6b7 9. b1c3 0-0 10. f1e1 b7c5
11. f3d4 c5e6 12. c1e3 e6d4 13. e3d4 c6c5
C67 Ruy Lopez: Berlin defence, Zukertort variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 e4d6 7. b5c6 b7c6 8. d4e5 d6b7 9. c2c4
C67 Ruy Lopez: Berlin defence, Pillsbury variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 e4d6 7. b5c6 b7c6 8. d4e5 d6b7 9. b2b3
C67 Ruy Lopez: Berlin defence, Winawer attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 e4d6 7. b5c6 b7c6 8. d4e5 d6b7 9. f3d4
C67 Ruy Lopez: Berlin defence, Cordel variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 e4d6 7. b5c6 b7c6 8. d4e5 d6f5
C67 Ruy Lopez: Berlin defence, Trifunovic variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d1e2 d7d5
C67 Ruy Lopez: Berlin defence, Minckwitz variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 f8e7
6. d4e5
C67 Ruy Lopez: Berlin defence, Rosenthal variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. 0-0 f6e4 5. d2d4 a7a6
C68 Ruy Lopez: exchange variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6
C68 Ruy Lopez: exchange, Alekhine variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. d2d4 e5d4
6. d1d4 d8d4 7. f3d4 c8d7
C68 Ruy Lopez: exchange, Keres variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. b1c3
C68 Ruy Lopez: exchange, Romanovsky variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. b1c3 f7f6
6. d2d3
C69 Ruy Lopez: exchange variation, 5.O-O
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. 0-0
C69 Ruy Lopez: exchange variation, Alapin gambit
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. 0-0 c8g4
6. h2h3 h7h5
C69 Ruy Lopez: exchange, Gligoric variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. 0-0 f7f6
C69 Ruy Lopez: exchange, Bronstein variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5c6 d7c6 5. 0-0 d8d6
C70 Ruy Lopez
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4
C70 Ruy Lopez: fianchetto defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g7g6
C70 Ruy Lopez: Cozio defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8e7
C70 Ruy Lopez: Bird's defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 c6d4
C70 Ruy Lopez: Alapin's defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 f8b4
C70 Ruy Lopez: Classical defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 f8c5
C70 Ruy Lopez: Caro variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 b7b5
C70 Ruy Lopez: Graz variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 b7b5 5. a4b3 f8c5
C70 Ruy Lopez: Taimanov (chase/wing/accelerated counterthrust) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 b7b5 5. a4b3 c6a5
C70 Ruy Lopez: Schliemann defence deferred
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 f7f5
C71 Ruy Lopez: modern Steinitz defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6
C71 Ruy Lopez: Noah's ark trap
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. d2d4 b7b5
6. a4b3 c6d4 7. f3d4 e5d4 8. d1d4 c7c5
C71 Ruy Lopez: modern Steinitz defence, Three knights variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. b1c3
C71 Ruy Lopez: modern Steinitz defence, Duras (Keres) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c4
C72 Ruy Lopez: modern Steinitz defence, 5.O-O
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. 0-0
C73 Ruy Lopez: modern Steinitz defence, Richter variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. a4c6 b7c6
6. d2d4
C73 Ruy Lopez: modern Steinitz defence, Alapin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. a4c6 b7c6
6. d2d4 f7f6
C74 Ruy Lopez: modern Steinitz defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3
C74 Ruy Lopez: modern Steinitz defence, siesta variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3 f7f5
C74 Ruy Lopez: Siesta, Kopayev variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3 f7f5
6. e4f5 c8f5 7. 0-0
C75 Ruy Lopez: modern Steinitz defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3 c8d7
C75 Ruy Lopez: modern Steinitz defence, Rubinstein variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3 c8d7
6. d2d4 g8e7
C76 Ruy Lopez: modern Steinitz defence, fianchetto (Bronstein) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 d7d6 5. c2c3 c8d7
6. d2d4 g7g6
C77 Ruy Lopez: Morphy defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6
C77 Ruy Lopez: four knights (Tarrasch) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. b1c3
C77 Ruy Lopez: Treybal (Bayreuth) variation (exchange var. deferred)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. a4c6
C77 Ruy Lopez: Wormald (Alapin) attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. d1e2
C77 Ruy Lopez: Wormald attack, Gruenfeld variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. d1e2 b7b5
6. a4b3 f8e7 7. d2d4 d7d6 8. c2c3 c8g4
C77 Ruy Lopez: Anderssen variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. d2d3
C77 Ruy Lopez: Morphy defence, Duras variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. d2d3 d7d6
6. c2c4
C78 Ruy Lopez: 5.O-O
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0
C78 Ruy Lopez: Wing attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 b7b5
6. a4b3 f8e7 7. a2a4
C78 Ruy Lopez: ...b5 & ...d6
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 b7b5
6. a4b3 d7d6
C78 Ruy Lopez: Rabinovich variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 b7b5
6. a4b3 d7d6 7. f3g5 d6d5 8. e4d5 c6d4 9. f1e1 f8c5 10. e1e5 e8f8
C78 Ruy Lopez: Archangelsk (counterthrust) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 b7b5
6. a4b3 c8b7
C78 Ruy Lopez: Moeller defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8c5
C79 Ruy Lopez: Steinitz defence deferred (Russian defence)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 d7d6
C79 Ruy Lopez: Steinitz defence deferred, Lipnitsky variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 d7d6
6. a4c6 b7c6 7. d2d4 c8g4
C79 Ruy Lopez: Steinitz defence deferred, Rubinstein variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 d7d6
6. a4c6 b7c6 7. d2d4 f6e4
C79 Ruy Lopez: Steinitz defence deferred, Boleslavsky variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 d7d6
6. a4c6 b7c6 7. d2d4 f6e4 8. f1e1 f7f5 9. d4e5 d6d5 10. b1c3
C80 Ruy Lopez: open (Tarrasch) defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
C80 Ruy Lopez: open, Tartakower variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d1e2
C80 Ruy Lopez: open, Knorre variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. b1c3
C80 Ruy Lopez: open, 6.d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4
C80 Ruy Lopez: open, Riga variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 e5d4
C80 Ruy Lopez: open, 6.d4 b5
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5
C80 Ruy Lopez: open, Friess attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. f3e5
C80 Ruy Lopez: open, Richter variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. d4d5
C80 Ruy Lopez: open, 7.Bb3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3
C80 Ruy Lopez: open, Schlechter defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. a2a4 c6d4
C80 Ruy Lopez: open, Berger variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. a2a4 c6d4 9. f3d4 e5d4 10. b1c3
C80 Ruy Lopez: open, Harksen gambit
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. c2c4
C80 Ruy Lopez: open, 8.de
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5
C80 Ruy Lopez: open, Zukertort variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c6e7
C80 Ruy Lopez: open, 8...Be6
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6
C80 Ruy Lopez: open, Bernstein variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. b1d2
C80 Ruy Lopez: open, Bernstein variation, Karpov gambit
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. b1d2 e4c5 10. c2c3 d5d4
11. f3g5
C81 Ruy Lopez: open, Howell attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. d1e2
C81 Ruy Lopez: open, Howell attack, Ekstroem variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. d1e2 f8e7 10. f1d1 0-0
11. c2c4 b5c4 12. b3c4 d8d7
C81 Ruy Lopez: open, Howell attack, Adam variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. d1e2 f8e7 10. c2c4
C82 Ruy Lopez: open, 9.c3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3
C82 Ruy Lopez: open, Berlin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 e4c5
C82 Ruy Lopez: open, Italian variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8c5
C82 Ruy Lopez: open, St. Petersburg variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8c5 10. b1d2
C82 Ruy Lopez: open, Dilworth variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8c5 10. b1d2 0-0
11. b3c2 e4f2
C82 Ruy Lopez: open, Motzko attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8c5 10. d1d3
C82 Ruy Lopez: open, Motzko attack, Nenarokov variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8c5 10. d1d3 c6e7
C83 Ruy Lopez: open, classical defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8e7
C83 Ruy Lopez: open, Malkin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8e7 10. b1d2 0-0
11. d1e2
C83 Ruy Lopez: open, 9...Be7, 10.Re1
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8e7 10. f1e1
C83 Ruy Lopez: open, Tarrasch trap
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8e7 10. f1e1 0-0
11. f3d4 d8d7 12. d4e6 f7e6 13. e1e4
C83 Ruy Lopez: open, Breslau variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f6e4
6. d2d4 b7b5 7. a4b3 d7d5 8. d4e5 c8e6 9. c2c3 f8e7 10. f1e1 0-0
11. f3d4 c6e5
C84 Ruy Lopez: closed defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
C84 Ruy Lopez: closed, centre attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. d2d4
C84 Ruy Lopez: closed, Basque gambit (North Spanish variation)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. d2d4 e5d4 7. e4e5 f6e4 8. c2c3
C85 Ruy Lopez: Exchange variation doubly deferred (DERLD)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. a4c6
C86 Ruy Lopez: Worrall attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. d1e2
C86 Ruy Lopez: Worrall attack, sharp line
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. d1e2 b7b5 7. a4b3 0-0
C86 Ruy Lopez: Worrall attack, solid line
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. d1e2 b7b5 7. a4b3 d7d6
C87 Ruy Lopez: closed, Averbach variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 d7d6
C88 Ruy Lopez: closed
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3
C88 Ruy Lopez: closed, Leonhardt variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 d7d6 8. c2c3 c6a5 9. b3c2 c7c5 10. d2d4 d8c7
11. h2h3 a5c6 12. d4d5 c6b8 13. b1d2 g7g5
C88 Ruy Lopez: closed, Balla variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 d7d6 8. c2c3 c6a5 9. b3c2 c7c5 10. d2d4 d8c7
11. a2a4
C88 Ruy Lopez: closed, 7...d6, 8.d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 d7d6 8. d2d4
C88 Ruy Lopez: Noah's ark trap
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 d7d6 8. d2d4 c6d4 9. f3d4 e5d4 10. d1d4 c7c5
C88 Ruy Lopez: Trajkovic counter-attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 c8b7
C88 Ruy Lopez: closed, 7...O-O
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0
C88 Ruy Lopez: closed, anti-Marshall 8.a4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. a2a4
C88 Ruy Lopez: closed, 8.c3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3
C89 Ruy Lopez: Marshall counter-attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5
C89 Ruy Lopez: Marshall counter-attack, 11...c6
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 f6d5 10. f3e5 c6e5
11. e1e5 c7c6
C89 Ruy Lopez: Marshall, Kevitz variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 f6d5 10. f3e5 c6e5
11. e1e5 c7c6 12. b3d5 c6d5 13. d2d4 e7d6 14. e5e3
C89 Ruy Lopez: Marshall, main line, 12.d2d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 f6d5 10. f3e5 c6e5
11. e1e5 c7c6 12. d2d4
C89 Ruy Lopez: Marshall, main line, 14...Qh3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 f6d5 10. f3e5 c6e5
11. e1e5 c7c6 12. d2d4 e7d6 13. e5e1 d8h4 14. g2g3 h4h3
C89 Ruy Lopez: Marshall, main line, Spassky variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 f6d5 10. f3e5 c6e5
11. e1e5 c7c6 12. d2d4 e7d6 13. e5e1 d8h4 14. g2g3 h4h3 15. c1e3 c8g4
16. d1d3 a8e8 17. b1d2 e8e6 18. a2a4 h3h5
C89 Ruy Lopez: Marshall, Herman Steiner variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d5 9. e4d5 e5e4
C90 Ruy Lopez: closed (with ...d6)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6
C90 Ruy Lopez: closed, Pilnik variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. d2d3
C90 Ruy Lopez: closed, Lutikov variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. b3c2
C90 Ruy Lopez: closed, Suetin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. a2a3
C91 Ruy Lopez: closed, 9.d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. d2d4
C91 Ruy Lopez: closed, Bogolyubov variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. d2d4 c8g4
C92 Ruy Lopez: closed, 9.h3
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3
C92 Ruy Lopez: closed, Keres (9...a5) variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 a6a5
C92 Ruy Lopez: closed, Kholmov variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c8e6
C92 Ruy Lopez: closed, Ragozin-Petrosian (`Keres') variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 f6d7
C92 Ruy Lopez: closed, Flohr-Zaitsev system (Lenzerheide variation)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c8b7
C93 Ruy Lopez: closed, Smyslov defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 h7h6
C94 Ruy Lopez: closed, Breyer defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6b8
C95 Ruy Lopez: closed, Breyer, 10.d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6b8 10. d2d4
C95 Ruy Lopez: closed, Breyer, Borisenko variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6b8 10. d2d4 b8d7
C95 Ruy Lopez: closed, Breyer, Gligoric variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6b8 10. d2d4 b8d7
11. b1d2 c8b7 12. b3c2 c7c5
C95 Ruy Lopez: closed, Breyer, Simagin variation
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6b8 10. d2d4 b8d7
11. f3h4
C96 Ruy Lopez: closed (9...Na5)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2
C96 Ruy Lopez: closed, Rossolimo defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c6
11. d2d4 d8c7
C96 Ruy Lopez: closed (10...c5)
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
C96 Ruy Lopez: closed, Borisenko defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 a5c6
C96 Ruy Lopez: closed, Keres (...Nd7) defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 f6d7
C97 Ruy Lopez: closed, Chigorin defence
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 d8c7
C97 Ruy Lopez: closed, Chigorin, Yugoslav system
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 d8c7 12. b1d2 c8d7 13. d2f1 f8e8 14. f1e3 g7g6
C98 Ruy Lopez: closed, Chigorin, 12...Nc6
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 d8c7 12. b1d2 a5c6
C98 Ruy Lopez: closed, Chigorin, Rauzer attack
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 d8c7 12. b1d2 a5c6 13. d4c5
C99 Ruy Lopez: closed, Chigorin, 12...c5d4
1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 a7a6 4. b5a4 g8f6 5. 0-0 f8e7
6. f1e1 b7b5 7. a4b3 0-0 8. c2c3 d7d6 9. h2h3 c6a5 10. b3c2 c7c5
11. d2d4 d8c7 12. b1d2 c5d4 13. c3d4




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