ECO B23

Sicilian Defense: Closed

Sicilian Defense: Closed is a chess opening classified under ECO B23. Its defining line here is 1. e4 c5 2. Nc3.

Sicilian Defense: Closed — board position♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♞♟♟♟♟♟♟♟♜♝♛♚♝♞♜

1. e4 c5 2. Nc3

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The diagram shows the position after 1. e4 c5 2. Nc3. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.

Other catalogued lines with this name

  • B23: 1. e4 c5 2. Nc3 e6
  • B23: 1. e4 c5 2. Nc3 e6 3. g3
  • B24: 1. e4 c5 2. Nc3 Nc6 3. g3 g6
  • B24: 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7
  • B25: 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6
  • B25: 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4
  • B26: 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3

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