B25 — Sicilian Defense: Closed

Semi-Open Games incl. Sicilian (B00–B99)

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

ECO B25 covers Sicilian Defense: Closed and related lines (Sicilian Defense: Closed, Sicilian Defense: Closed, Botvinnik Defense, with f4, Sicilian Defense: Closed, Botvinnik Defense, with Nge2, Sicilian Defense: Closed, Botvinnik Defense, Edge Variation). Main line 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 with variations, statistics, and the best responses.

5 lines under B25

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4

Sicilian Defense: Closed, Botvinnik Defense, with f4

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5

Sicilian Defense: Closed, Botvinnik Defense, with Nge2

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5

Sicilian Defense: Closed, Botvinnik Defense, Edge Variation

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7

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