B40 is the opening Sicilian Defense: Alapin Variation, Sherzer Variation of the volume B · Semi-open games: 10 half-moves to the position in the diagram, 18 variations in the ECO table.
What the games say
6,669 games in the collections, from 1842 to 2022. Mean rating of the games with ratings: 2443.
White wins 34 %, draws 32 %, Black wins 34 %
Most games: Grachev,B (86), Kveinys, Aloyzas (54), Alekseev,Evgeny (51), Galego, Luis (49), Georgiev, Krum (46)
All 18 variations
- Sicilian Defense: Alapin Variation, Sherzer Variation 1.e4 c5 2.♘f3 e6 3.c3 ♘f6 4.e5 ♘d5 5.d4 ♘c6
- Sicilian Defense: Delayed Alapin Variation, with e6 1.e4 c5 2.♘f3 e6 3.c3
- Sicilian Defense: Drazic Variation 1.e4 c5 2.♘f3 e6 3.d4 a6
- Sicilian Defense: French Variation 1.e4 c5 2.♘f3 e6
- Sicilian Defense: French Variation, Normal 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♘f6
- Sicilian Defense: French Variation, Open 1.e4 c5 2.♘f3 e6 3.d4 cxd4
- Sicilian Defense: French Variation, Westerinen Attack 1.e4 c5 2.♘f3 e6 3.b3
- Sicilian Defense: Gaw-Paw Variation 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♘f6 5.♘c3 ♕b6
- Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation 1.e4 c5 2.♘f3 e6 3.♘c3 a6 4.g3 b5 5.d4 cxd4 6.♘xd4
- Sicilian Defense: Kramnik Variation 1.e4 c5 2.♘f3 e6 3.c4
- Sicilian Defense: Kveinis Variation 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♕b6
- Sicilian Defense: Marshall Counterattack 1.e4 c5 2.♘f3 e6 3.d4 d5
- Sicilian Defense: Paulsen-Basman Defense 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♗c5
- Sicilian Defense: Pin Variation 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♘f6 5.♘c3 ♗b4
- Sicilian Defense: Pin Variation, Jaffe Variation 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♘f6 5.♘c3 ♗b4 6.♗d3 e5
- Sicilian Defense: Pin Variation, Koch Variation 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.♘xd4 ♘f6 5.♘c3 ♗b4 6.e5
- Sicilian Defense: Smith-Morra Gambit Deferred 1.e4 c5 2.♘f3 e6 3.d4 cxd4 4.c3
- Sicilian Defense: Wing Gambit Deferred 1.e4 c5 2.♘f3 e6 3.b4