Blunderbase

Semi-Slav Defense

The Semi-Slav Defense starts 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6. The opening book names 48 variations of it, under ECO D30 to D49.

The main line, move by move

Starting position8 more to go

  1. 1
  2. 2
  3. 3
  4. 4

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All 48 Semi-Slav Defense variations

  • D30Quiet Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 (also reached by 1 other move order)
  • D31Accelerated Move Order1. d4 d5 2. c4 e6 3. Nc3 c6
  • D31Anti-Noteboom, Stonewall Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5
  • D31Anti-Noteboom, Stonewall Variation, Portisch Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4
  • D31Gunderam Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3
  • D31Marshall Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4
  • D31Marshall Gambit, Forgotten Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3
  • D31Marshall Gambit, Main Line1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2
  • D31Marshall Gambit, Tolush Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 c5 9. Bxc5 Qxg2
  • D31Noteboom Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4
  • D31Noteboom Variation, Abrahams Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 Bxc3+ 7. bxc3 b5 8. axb5 cxb5
  • D31Noteboom Variation, Anti-Noteboom Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g3
  • D31Noteboom Variation, Anti-Noteboom Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5
  • D31Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6
  • D43Anti-Moscow Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4
  • D43Hastings Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3
  • D43Moscow Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6
  • D44Botvinnik Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 (also reached by 1 other move order)
  • D44Botvinnik Variation, Alatortsev System1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5
  • D44Botvinnik Variation, Ekstrom Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne5
  • D44Botvinnik Variation, Lilienthal Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3
  • D44Botvinnik Variation, Szabo Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. Qf3
  • D45Accelerated Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6
  • D45Main Line1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 (also reached by 2 other move orders)
  • D45Normal Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 (also reached by 2 other move orders)
  • D45Rubinstein System1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Ne5
  • D45Stoltz Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 (also reached by 4 other move orders)
  • D45Stoltz Variation, Center Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4
  • D45Stoltz Variation, Center Variation, Mikhalchishin Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5
  • D45Stoltz Variation, Shabalov Attack1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4
  • D45Stonewall Defense1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f5
  • D46Bogoljubow Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7
  • D46Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 (also reached by 7 other move orders)
  • D46Romih Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bb4
  • D47Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 (also reached by 2 other move orders)
  • D47Meran Variation, Lundin Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4
  • D47Meran Variation, Wade Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7
  • D47Meran Variation, Wade Variation, Kaidanov Gambit1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 13. Nxd4
  • D47Meran Variation, Wade Variation, Larsen Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5
  • D47Semi-Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4
  • D48Meran Variation, Old Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5
  • D48Meran Variation, Pirc Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4
  • D48Meran Variation, Reynolds' Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5
  • D49Meran Variation, Blumenfeld Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5
  • D49Meran Variation, Rabinovich Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng4
  • D49Meran Variation, Rellstab Attack1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5
  • D49Meran Variation, Sozin Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 (also reached by 1 other move order)
  • D49Meran Variation, Stahlberg Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3

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