Ruy López Opening: Morphy Defense, Modern Steinitz Defense
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6
Main Transpositions
Most Popular
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 (760/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O (685/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 (2054/M). More: dbcn ccoe c365
TCEC Games
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O g6 (39cp, 189/M, TCEC +1=0-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 Ng6 8. Re1 Be7 (20cp, 50/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 Ng6 8. d5 Nb8 (40cp, 33/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 Ng6 8. Nbd2 Be7 (36cp, 18/M, TCEC +1=3-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 (60cp, 146/M, TCEC +2=3-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. Re1 g6 8. d4 Qe7 (58cp, 22/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. d4 Be7 8. Nbd2 O-O (18cp, 24/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. d4 Qe7 8. d5 Nb8 (76cp, 0/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. d4 Qe7 (74cp, 11/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. Re1 Nge7 (39cp, 51/M, TCEC +1=0-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. Re1 b5 9. Bb3 Nf6 10. Bg5 h6 (9cp, 3/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. d5 Nce7 (9cp, 60/M, TCEC +0=1-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. dxe5 dxe5 (36cp, 44/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. Be3 Nf6 (21cp, 29/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 (41cp, 214/M, TCEC +2=3-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. Bb3 h6 8. Nbd2 Ng6 (62cp, 16/M, TCEC +0=4-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. Bb3 h6 8. Nh4 Na5 9. Bc2 (0cp, 3/M, TCEC +3=2-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. Be3 h6 (110cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. d5 Nb8 (81cp, 7/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 (81cp, 125/M, TCEC +7=9-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 (36cp, 424/M, TCEC +1=5-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. O-O Bd3 8. Re1 Be7 (0cp, 73/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 (0cp, 117/M, TCEC +1=0-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 (0cp, 163/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 (0cp, 760/M, TCEC +1=3-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. d4 b5 7. Bb3 Nxd4 8. Nxd4 exd4 (1cp, 22/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. d4 b5 7. Bb3 exd4 8. c3 d3 9. Qxd3 (-76cp, 2/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 h5 7. d4 b5 8. Bb3 Nxd4 9. hxg4 (-30cp, 17/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 h5 7. d4 b5 8. Bb3 Nxd4 (30cp, 17/M, TCEC +1=9-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 (36cp, 140/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Ne7 6. Nc3 Bd7 (17cp, 5/M, TCEC +0=0-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Ne7 (60cp, 54/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O g6 (124cp, 9/M, TCEC +3=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O (-4cp, 685/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. Be3 Ne7 8. Nc3 Ng6 (4cp, 40/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. c4 Ne7 8. Nc3 Ng6 (1cp, 8/M, TCEC +1=0-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4 Bd7 6. Nc3 Nf6 7. d4 Be7 (94cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 (17cp, 2054/M, TCEC +2=13-1). Games. More: dbcn ccoe c365
Biased Popular Lines
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 Ng6 (66cp, -7cp; 153/M, 92%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 h6 (81cp, -22cp; 15/M, 9%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. d4 Qe7 (75cp, -66cp; 11/M, 14%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. Bb3 h6 8. Nbd2 Ng6 9. Nc4 Be7 (95cp, -70cp; 13/M, 96%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. Be3 Ng6 8. h4 Be7 (99cp, -35cp; 10/M, 71%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 (78cp, -57cp; 125/M, 49%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 h5 7. Bxc6+ bxc6 8. d4 Bxf3 (70cp, -45cp; 13/M, 62%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 Bh5 7. c3 Nf6 (78cp, -51cp; 16/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O g6 (120cp, -109cp; 9/M, 1%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 Nxd4 7. Nxd4 exd4 8. Qxd4 (342cp, -342cp; 18/M, 17%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 exd4 6. Nxd4 Bd7 (77cp, -42cp; 15/M, 94%). More: dbcn ccoe c365
Lines with Disagreement to Human Master Play
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 (78cp, -57cp; 125/M, 49%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bg4 6. h3 Bh5 7. c3 Nf6 (78cp, -51cp; 16/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 exd4 7. Nxd4 (331cp, -375cp; 5/M, 48%). More: dbcn ccoe c365
Latest dbcn data: 2025-12-19