1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2

Bogo-Indian Defense: 4.Bd2

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2

Main Transpositions

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d5 to 3. .. d5 4. g3 Bb4+ 5. Bd2 a5

Most Popular

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 (741/M). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 (1220/M). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 (1755/M). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 (708/M). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 (508/M). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 (3442/M). More: dbcn ccoe

TCEC Games

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 Bxd2+ 7. Nbxd2 d6 8. O-O O-O (17cp, 162/M, TCEC +1=2-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O (40cp, 91/M, TCEC +1=1-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 (46cp, 47/M, TCEC +0=2-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 O-O 7. Bg2 Bxc3 8. Bxc3 Ne4 (41cp, 43/M, TCEC +0=2-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 d5 7. cxd5 exd5 8. Bg2 O-O (6cp, 15/M, TCEC +0=3-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Nbxd2 d6 8. O-O e5 (3cp, 40/M, TCEC +1=1-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 b6 6. Bg2 O-O 7. O-O Ba6 8. Qc2 d5 (60cp, 8/M, TCEC +0=2-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. Qc2 O-O (40cp, 7/M, TCEC +0=2-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nbd7 (26cp, 129/M, TCEC +1=0-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nc6 7. O-O e5 8. d5 Ne7 (20cp, 2/M, TCEC +0=0-1). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nc6 (69cp, 15/M, TCEC +0=1-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 (21cp, 708/M, TCEC +3=3-1). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. g3 O-O 7. Bg2 d6 8. Nbd2 Nc6 (22cp, 15/M, TCEC +0=1-1). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. g3 O-O (21cp, 130/M, TCEC +1=0-0). Games. More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 O-O 6. Nc3 d5 (16cp, 111/M, TCEC +0=1-1). Games. More: dbcn ccoe

Biased Popular Lines

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 O-O 7. O-O Bxd2 8. Nbxd2 d5 (92cp, -75cp; 9/M, 13%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 O-O 7. O-O Bxd2 8. Qxd2 d6 (100cp, -19cp; 27/M, 80%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 O-O 7. O-O Bxd2 (79cp, 0cp; 53/M, 91%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 Ne4 (96cp, -80cp; 8/M, 1%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 d5 (88cp, -72cp; 8/M, 1%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bg2 d6 10. d5 Nxc3 11. Rxc3 Nb8 12. dxe6 fxe6 13. O-O Nd7 (98cp, -2cp; 13/M, 55%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bg2 d6 10. d5 Nxc3 11. Rxc3 Nb8 (85cp, -31cp; 43/M, 71%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bg2 d6 10. O-O Nxc3 11. Rxc3 a5 12. d5 Nb4 (80cp, -12cp; 7/M, 75%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bg2 d6 10. O-O Nxc3 11. Rxc3 a5 (75cp, -39cp; 11/M, 34%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. d5 Nxc3 10. Rxc3 Nb8 (93cp, -45cp; 20/M, 59%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 O-O 7. Bg2 Na5 (81cp, -41cp; 27/M, 22%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 d6 (96cp, -63cp; 19/M, 5%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O Re8 (84cp, -5cp; 52/M, 56%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O Nc6 (104cp, -25cp; 38/M, 41%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O c6 10. e4 Bg4 (124cp, -26cp; 8/M, 50%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O c6 (104cp, -25cp; 22/M, 24%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O a5 (87cp, -8cp; 12/M, 13%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O Nbd7 (97cp, -18cp; 10/M, 11%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 e5 9. O-O Bg4 (89cp, -10cp; 8/M, 8%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 c6 (97cp, -18cp; 13/M, 11%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 Nbd7 (96cp, -17cp; 10/M, 9%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. Nc3 Nc6 (98cp, -19cp; 8/M, 7%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. O-O e5 (83cp, -15cp; 20/M, 80%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 8. O-O a5 (86cp, -18cp; 15/M, 60%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d6 (77cp, -44cp; 115/M, 86%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 d5 8. O-O Nc6 (75cp, -40cp; 8/M, 21%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 Ne4 8. Qc2 f5 (91cp, -5cp; 8/M, 67%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Bxd2+ 7. Qxd2 Ne4 (86cp, -53cp; 12/M, 9%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 Ne4 (99cp, -67cp; 17/M, 6%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 O-O 6. Bg2 a5 (70cp, -38cp; 11/M, 4%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Bxd2+ 6. Qxd2 d6 (77cp, -50cp; 18/M, 15%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Bxd2+ 6. Qxd2 Ne4 (77cp, -50cp; 8/M, 6%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Ne4 (98cp, -73cp; 20/M, 1%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 a5 (84cp, -67cp; 8/M, 32%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Nc6 (74cp, -56cp; 10/M, 10%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 O-O (100cp, -99cp; 9/M, 12%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. Nc3 exd4 (76cp, -57cp; 11/M, 28%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 O-O 7. O-O Bxd2 8. Qxd2 Nc6 (85cp, -12cp; 8/M, 45%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 O-O 7. O-O Bxd2 (82cp, -3cp; 20/M, 89%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 O-O (79cp, -53cp; 24/M, 16%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nc6 7. O-O e5 (76cp, -6cp; 10/M, 68%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. Nc3 d6 6. Qc2 Nbd7 (102cp, -75cp; 10/M, 48%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 Nbd7 (116cp, -37cp; 10/M, 61%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. a3 Bxd2+ 6. Qxd2 d6 (79cp, -54cp; 15/M, 38%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. g3 O-O 7. Bg2 d6 8. O-O Nc6 9. a3 Re8 (97cp, -58cp; 13/M, 44%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. g3 O-O 7. Bg2 d6 8. O-O Re8 (78cp, -55cp; 25/M, 20%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 O-O 6. Nc3 d6 7. g3 Qe7 (78cp, -34cp; 18/M, 81%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 O-O 6. Nc3 d6 7. g3 Nbd7 8. Bg2 e5 (91cp, -7cp; 8/M, 59%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 O-O 6. Nc3 d6 7. g3 Nbd7 (81cp, -37cp; 8/M, 39%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d6 6. Nc3 Nbd7 (114cp, -68cp; 11/M, 34%). More: dbcn ccoe

Lines with Disagreement to Human Master Play

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 O-O 7. Bg2 d6 8. O-O Bxc3 9. Bxc3 e5 (119cp, -73cp; 6/M, 43%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 a5 (84cp, -67cp; 8/M, 32%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Nc3 O-O 6. Qc2 Nc6 (78cp, -64cp; 6/M, 21%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. Nc3 exd4 (76cp, -57cp; 11/M, 28%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. Nc3 d6 6. Qc2 Nbd7 (102cp, -75cp; 10/M, 48%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. a3 Bxd2+ 6. Qxd2 d6 (79cp, -54cp; 15/M, 38%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. g3 O-O 7. Bg2 d6 8. O-O Re8 (78cp, -55cp; 25/M, 20%). More: dbcn ccoe
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d6 6. Nc3 Nbd7 (114cp, -68cp; 11/M, 34%). More: dbcn ccoe

Latest dbcn data: 2022-06-25

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