Play chess opening positions by eco with the machine-Stockfish-level-1350-2500-or-with a friend on Lichess C00-C99

Encyclopaedia of Chess Openings Classification Code Index - play with computer on lichess

Play chess opening positions by eco with the machine (Stockfish-level-1350-2500) or with a friend. It i salso analyse mode.

Under the link is hidden opportunity to play positions against the computer.

C00: French Defence, unusual White second moves: 1.e4 e6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C01: French Defence, E/change Variation: 1.e4 e6 2.d4 d5 3.e/d5 e/d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C02: French Defence, Advance Variation: 1.e4 e6 2.d4 d5 3.e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C03: French Defence, Tarrasch Variation and unusual Black third moves: 1.e4 e6 2.d4 d5 3.Nd2

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C04: French Defence, Tarrasch Variation with 3...Nc6: 1.e4 e6 2.d4 d5 3.Nd2 Nc6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C05: French Defence, Tarrasch Variation 3...Nf6 4.e5 Nfd7, unusual White fifth moves: 1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C06: French Defence, Tarrasch Variation 3...Nf6 4.e5 Nfd7 5.Bd3 main line: 1.e4 e6 2.d4 d5 3.Nd2 Nf6

4.e5 Nfd7 5.Bd3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C07: French Defence, Tarrasch Variation 3...c5, various White fourth moves: 1.e4 e6 2.d4 d5 3.Nd2 c5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C08: French Defence, Tarrasch Variation 3...c5 4.e/d5 e/d5 sidelines: 1.e4 e6 2.d4 d5 3.Nd2 c5 4.e/d5

e/d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C09: French Defence, Tarrasch Variation 3...c5 main line: 1.e4 e6 2.d4 d5 3.Nd2 c5 4.e/d5 e/d5

5.Ngf3 Nc6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C10: French Defence, 3.Nc3 sidelines: 1.e4 e6 2.d4 d5 3.Nc3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C10: French Defence, Rubinstein Variation: 1.e4 e6 2.d4 d5 3.Nc3 d/e4 4.N/e4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C11: French Defence, Steinitz Variation: 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C12: French Defence, MacCutcheon Variation: 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C13: French Defence, Burn Variation: 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 d/e4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C14: French Defence, Classical main line: 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C15: French Defence, Winawer Variation sidelines: 1.e4 e6 2.d4 d5 3.Nc3 Bb4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C16: French Defence, Winawer Variation without ...c5: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C17: French Defence, Winawer Variation 4...c5 sidelines: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C18: French Defence, Winawer Variation with 6...Qc7: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 B/c3+

6.b/c3 Qc7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C19: French Defence, Winawer Variation main line 6...Ne7 7.Nf3 Qc7: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5

c5 5.a3 B/c3+ 6.b/c3 Ne7 7.Nf3 Qc7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C20: Open games, various White second moves: 1.e4 e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C21: Danish Gambit: 1.e4 e5 2.d4 e/d4 3.c3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C22: Center Game: 1.e4 e5 2.d4 e/d4 3.Q/d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C23: Bishop's Opening, 2...Bc5: 1.e4 e5 2.Bc4 Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C24: Bishop's Opening, 2...Nf6: 1.e4 e5 2.Bc4 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C25: Vienna Game, early deviations: 1.e4 e5 2.Nc3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C26: Vienna Gambit: 1.e4 e5 2.Nc3 Nc6 3.f4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C27: Vienna Game, 2...Nf6 sidelines: 1.e4 e5 2.Nc3 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C28: Vienna Game, 2...Nf6 Bishop's Variation: 1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C29: Vienna Game, Classical main line: 1.e4 e5 2.Nc3 Nf6 3.f4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C30: King's Gambit: 1.e4 e5 2.f4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C31: Falkbeer Countergambit sidelines: 1.e4 e5 2.f4 d5 3.e/d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C32: Falkbeer Countergambit main line: 1.e4 e5 2.f4 d5 3.e/d5 e4 4.d3 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C33: King's Gambit Accepted sidelines: 1.e4 e5 2.f4 e/f4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C33: King's Gambit Accepted, King's Bishop's Gambit: 1.e4 e5 2.f4 e/f4 3.Bc4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C34: King's Gambit Accepted, King's Knight's Gambit sidelines: 1.e4 e5 2.f4 e/f4 3.Nf3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C35: King's Gambit Accepted, Cunningham-Euwe Variation: 1.e4 e5 2.f4 e/f4 3.Nf3 Be7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C36: King's Gambit Accepted, Modern Variation: 1.e4 e5 2.f4 e/f4 3.Nf3 d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C37: King's Gambit Accepted, Muzio Gambit: 1.e4 e5 2.f4 e/f4 3.Nf3 g5 4.Bc4 g4 5.O-O g/f3 6.

Q/f3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C38: King's Gambit Accepted, Neumann's Defence: 1.e4 e5 2.f4 e/f4 3.Nf3 g5 4.Bc4 Bg7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C39: King's Gambit Accepted, Kieseritzky Gambit: 1.e4 e5 2.f4 e/f4 3.Nf3 g5 4.h4 g4 5.Ne5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C40: Elephant Gambit: 1.e4 e5 2.Nf3 d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C40: Latvian Gambit: 1.e4 e5 2.Nf3 f5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C41: Philidor Defence: 1.e4 e5 2.Nf3 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C42: Petroff Defence, unusual White third moves: 1.e4 e5 2.Nf3 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C42: Petroff Defence, 3.N/e5 early deviations: 1.e4 e5 2.Nf3 Nf6 3.N/e5 d6 4.Nf3 N/e4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C42: Petroff Defence, 3.N/e5 main line: 1.e4 e5 2.Nf3 Nf6 3.N/e5 d6 4.Nf3 N/e4 5.d4 d5 6.Bd3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C43: Petroff Defence, 3.d4: 1.e4 e5 2.Nf3 Nf6 3.d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C44: Ponziani Opening: 1.e4 e5 2.Nf3 Nc6 3.c3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C44: Göring Gambit: 1.e4 e5 2.Nf3 Nc6 3.d4 e/d4 4.c3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C44: Scotch Gambit: 1.e4 e5 2.Nf3 Nc6 3.d4 e/d4 4.Bc4 (4...Nf6--C55, 4...Bc5--C54/C56, 4...Be7--

C50)

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C45: Scotch Game: 1.e4 e5 2.Nf3 Nc6 3.d4 e/d4 4.N/d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C46: Three Knights' Game: 1.e4 e5 2.Nf3 Nc6 3.Nc3 (3...Nf6--C47)

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C47: Four Knights' Game sidelines: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C48: Four Knights' Game, Belgrade Gambit: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C48: Four Knights' Game, Spanish Variation sidelines: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C48: Four Knights' Game, Rubinstein Variation: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C48: Four Knights' Game, Marshall Variation: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C48: Four Knights' Game, Symmetrical Variation: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O

O-O 6.d3 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C49: Four Knights' Game, Symmetrical Variation main line: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5

Bb4 5.O-O O-O 6.d3 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C50: Hungarian Defence: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C50: Italian Game: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C50: Giuoco Pianissimo: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C51: Evans' Gambit sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C52: Evans' Gambit main line: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 B/b4 5.c3 Ba5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C53: Giuoco Piano, 4.c3 sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C54: Giuoco Piano, 4.c3 Nf6 5.d4 main line: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 e/d4 6.

c/d4 Bb4+

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C54: Giuoco Piano, Wing Attack: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.b4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C54: Giuoco Piano, Modern System: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C55: Two Knights' Defence, 4.d3: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C56: Two Knights' Defence, Ma/ Lange Attack: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 e/d4 5.O-O Bc5

6. e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C56: Two Knights' Defence, Modern Attack: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 e/d4 5.e5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C57: Two Knights' Defence, Polerio Variation: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C57: Two Knights' Defence, Wilkes-Barre Variation: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C57: Two Knights' Defence, Fritz Variation: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.e/d5 Nd4 6.

c3 b5 7.Bf1 N/d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C57: Two Knights' Defence, Fried Liver Attack: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.e/d5

N/d5 6.N/f7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C58: Two Knights' Defence, 5...Na5 sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.e/d5 Na5

6. Bb5+ c6 7.d/c6 b/c6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C59: Two Knights' Defence, 5...Na5 main line: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.e/d5 Na5

6.Bb5+ c6 7.d/c6 b/c6 8.Be2

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C60: Ruy Lopez, early deviations: 1.e4 e5 2.Nf3 Nc6 3.Bb5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C60: Ruy Lopez, Smyslov Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 g6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C60: Ruy Lopez, Cozio System: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C61: Ruy Lopez, Bird's Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C62: Ruy Lopez, Steinitz Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C63: Ruy Lopez, Schliemann Gambit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C64: Ruy Lopez, Classical Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 (4.O-O Nf6--C65)

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C65: Ruy Lopez, Berlin Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C65: Ruy Lopez, Classical Berlin Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C66: Ruy Lopez, Berlin Defence with 4...d6: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C67: Ruy Lopez, Berlin Defence main line: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O N/e4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C68: Ruy Lopez, E/change Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.B/c6 d/c6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C69: Ruy Lopez, E/change Variation with 5.O-O f6: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.B/c6 d/c6 5.O-O f6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C70: Ruy Lopez, Norwegian Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C70: Ruy Lopez, Delayed Schliemann Gambit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 f5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C71: Ruy Lopez, Deferred Steinitz Defence sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C72: Ruy Lopez, Deferred Steinitz Defence with 5.O-O: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 O-O

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C73: Ruy Lopez, Deferred Steinitz Defence with 5.B/c6+: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.

B/c6+

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C74: Ruy Lopez, Deferred Steinitz Defence with 5.c3 f5: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C75: Ruy Lopez, Deferred Steinitz Defence with 5.c3 Bd7 6.d4 without ...g6: 1.e4 e5 2.Nf3 Nc6 3.

Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C76: Ruy Lopez, Deferred Steinitz Defence 5.c3 Bd7 6.d4 g6 main line: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6

4. Ba4 d6 5.c3 Bd7 6.d4 g6 7.O-O Bg7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C77: Ruy Lopez, 3...a6 4.Ba4 Nf6 sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C78: Ruy Lopez, Möller Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C78: Ruy Lopez, Arkhangelsk Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3

Bb7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C79: Ruy Lopez, Russian Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C80: Open Ruy Lopez sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O N/e4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C80: Open Ruy Lopez with 9.Nbd2: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O N/e4 6.d4 b5 7.

Bb3 d5 8.d/e5 Be6 9.Nbd2

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C81: Open Ruy Lopez, Keres Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O N/e4 6.d4

b5 7.Bb3 d5 8.d/e5 Be6 9.Qe2

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C82: Open Ruy Lopez, Italian Defence: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O N/e4 6.d4

b5 7.Bb3 d5 8.d/e5 Be6 9.c3 Bc5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C83: Open Ruy Lopez, 9.c3 main line: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O N/e4 6.d4 b5

7.Bb3 d5 8.d/e5 Be6 9.c3 Be7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C84: Closed Ruy Lopez, si/th move sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C85: Closed Ruy Lopez, Deferred E/change Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O

Be7 6.B/c6 d/c6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C86: Closed Ruy Lopez, Worrall Attack: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C87: Closed Ruy Lopez, 6...d6: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C88: Closed Ruy Lopez, Anti-Marshall Systems: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7

6.Re1 b5 7.Bb3 O-O (8.c3 d6--C90-C99, 8.c3 d5--C89)

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C89: Closed Ruy Lopez, Marshall Gambit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.

Re1 b5 7.Bb3 O-O 8.c3 d5

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C90: Closed Ruy Lopez with 7...d6, early deviations: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O

Be7 6.Re1 b5 7.Bb3 d6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C91: Closed Ruy Lopez, 7...d6 without 9.h3: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1

b5 7.Bb3 d6 8.c3 O-O 9.d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C92: Closed Ruy Lopez, 9.h3 sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5

7.Bb3 d6 8.c3 O-O 9.h3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C92: Closed Ruy Lopez, Bulgarian Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1

b5 7.Bb3 d6 8.c3 O-O 9.h3 Nd7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C92: Closed Ruy Lopez, Zaitsev Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1

b5 7.Bb3 d6 8.c3 O-O 9.h3 Bb7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C93: Closed Ruy Lopez, Smyslov Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1

b5 7.Bb3 d6 8.c3 O-O 9.h3 h6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C94: Closed Ruy Lopez, Breyer Variation with 10.d3: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O

Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d3

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C95: Closed Ruy Lopez, Breyer Variation with 10.d4: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O

Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C96: Closed Ruy Lopez, Chigorin Variation without 11...Qc7: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6

5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C97: Closed Ruy Lopez, 11...Qc7 sidelines: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1

b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C98: Closed Ruy Lopez, Chigorin Defence with 12...Nc6: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5. O-O

Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org

C99: Closed Ruy Lopez, Chigorin Defence main line: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O

Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 c/d4 13.c/d4

Play this position with the machine (Stockfish-level-1350-2500) or with a friend on lichess_org