ECO E09 · Catalan Opening

Catalan Opening: Closed Variation, Rabinovich Variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 Be7 6. g3 Nbd7 7. Bg2 O-O 8. O-O b5

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White to move. The arrow shows Stockfish’s best move.
Best move

9. c5+0.86

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Catalan Opening: Closed Variation, Rabinovich Variation (E09), reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 Be7 6. g3 Nbd7 7. Bg2 O-O 8. O-O b5, Stockfish 18 recommends 9. c5 for White. White is clearly better (+0.86).

Top engine moves

  1. +0.869. c5 a5 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Nf6 13. Qc2 Nd5
  2. +0.329. b3 bxc4 10. bxc4 Ba6 11. Bb2 Rb8 12. Rfb1 Re8 13. e3 c5
  3. +0.119. cxb5 cxb5 10. Nb3 Bb7 11. Bf4 Rc8 12. Qd2 Nb6 13. Qa5 a6

Frequently asked questions

What is the best move in the Catalan Opening: Closed Variation, Rabinovich Variation?
After 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 Be7 6. g3 Nbd7 7. Bg2 O-O 8. O-O b5, Stockfish 18 at depth 18 recommends 9. c5 for White, continuing a5 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Nf6 13. Qc2 Nd5. White is clearly better (+0.86). The next best moves are 9. b3 (+0.32) and 9. cxb5 (+0.11).
Is the Catalan Opening: Closed Variation, Rabinovich Variation a good opening?
Stockfish rates the position at +0.86: white is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Catalan Opening: Closed Variation, Rabinovich Variation?
E09. ECO codes classify chess openings from A00 to E99; E is the volume for indian defenses.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).