Blunderbase

Nimzo-Indian Defense

The Nimzo-Indian Defense starts 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4. The opening book names 67 variations of it, under ECO E20 to E59.

The main line, move by move

Starting position6 more to go

  1. 1
  2. 2
  3. 3

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All 67 Nimzo-Indian Defense variations

  • E20Dilworth Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e4
  • E20Kmoch Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3
  • E20Mikenas Attack1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3
  • E20Romanishin Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 (also reached by 1 other move order)
  • E20Romanishin Variation, English Hybrid1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 cxd4 6. Nxd4 O-O 7. Bg2 d5 8. cxd5 Nxd5
  • E21Three Knights Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3
  • E21Three Knights Variation, Euwe Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 Ne4
  • E21Three Knights Variation, Korchnoi Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5
  • E21Three Knights Variation, Shocron Gambit1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5
  • E22Spielmann Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3
  • E23Spielmann Variation, Carlsbad Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2
  • E23Spielmann Variation, Romanovsky Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6
  • E23Spielmann Variation, Stahlberg Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 (also reached by 1 other move order)
  • E24Sämisch Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 (also reached by 5 other move orders)
  • E24Sämisch Variation, Botvinnik Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. e3 O-O 8. cxd5 Nxd5
  • E25Sämisch Variation, Keres Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5
  • E25Sämisch Variation, Romanovsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 f5
  • E26Sämisch Variation, O'Kelly Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6
  • E29Sämisch Variation, Capablanca Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Ne2 b6 9. e4 Ne8
  • E30Leningrad Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5
  • E30Leningrad Variation, Averbakh Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5
  • E31Leningrad Variation, Benoni Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6
  • E32Classical Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2
  • E32Classical Variation, Keres Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6
  • E32Classical Variation, Vitolins-Adorjan Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b5
  • E33Classical Variation, Milner-Barry Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6
  • E33Classical Variation, Zurich Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6
  • E34Classical Variation, Belyavsky Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. Nf3 Qf5 7. Qd1 e5
  • E34Classical Variation, Noa Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 (also reached by 3 other move orders)
  • E36Classical Variation, Noa Variation, Botvinnik Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Nc6
  • E36Classical Variation, Noa Variation, Main Line1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4
  • E36Classical Variation, Romanishin Gambit1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 c5
  • E37Classical Variation, Modern Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 c5
  • E37Classical Variation, Noa Variation, San Remo Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6 8. e3 e5
  • E38Classical Variation, Berlin Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 (also reached by 1 other move order)
  • E38Classical Variation, Berlin Variation, Steiner Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc3+
  • E39Classical Variation, Berlin Variation, Macieja System1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6
  • E39Classical Variation, Berlin Variation, Pirc Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O
  • E40Rubinstein System1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 (also reached by 1 other move order)
  • E40Rubinstein System, Taimanov Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6
  • E41Rubinstein System, Hübner Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 (also reached by 1 other move order)
  • E42Rubinstein System, Rubinstein Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2
  • E42Rubinstein System, Rubinstein Variation, Main Line1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3
  • E42Rubinstein System, Rubinstein Variation, Sherbakov Attack1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5
  • E43St. Petersburg Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 (also reached by 11 other move orders)
  • E43St. Petersburg Variation, with Ne41. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4
  • E44St. Petersburg Variation, American Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ne4
  • E44St. Petersburg Variation, Romanishin-Psakhis Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 c5 6. a3 Ba5
  • E45St. Petersburg Variation, Fischer Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6
  • E46Normal Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O (also reached by 1 other move order)
  • E46Reshevsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2
  • E46Simagin Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Bd6
  • E48Normal Variation, Classical Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5
  • E48Ragozin Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O
  • E49Normal Variation, Botvinnik System1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3
  • E51Normal Variation, Ragozin Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5
  • E51Normal Variation, Sämisch Deferred1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3
  • E51Ragozin Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O dxc4
  • E52Normal Variation, Schlechter Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 (also reached by 1 other move order)
  • E53Normal Variation, Gligoric System1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 (also reached by 1 other move order)
  • E53Normal Variation, Gligoric System, Keres Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6
  • E54Normal Variation, Gligoric System, Exchange Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 (also reached by 1 other move order)
  • E54Normal Variation, Gligoric System, Smyslov Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Qe7
  • E55Normal Variation, Gligoric System, Bronstein Variation1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7
  • E56Normal Variation, Gligoric System, Bernstein Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 (also reached by 1 other move order)
  • E58Normal Variation, Bernstein Defense, Exchange Line1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3
  • E59Normal Variation, Bernstein Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 (also reached by 1 other move order)

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