About this opening
Sicilian Defense: Wing Gambit, Carlsbad Variation is an opening in the Encyclopedia of Chess Openings,
classified under code B20. ECO group B (B00–B99)
covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached
after 6 half-moves from the
starting position, with the move sequence 1. e4 c5 2. b4 cxb4 3. a3 bxa3.
It belongs to the Sicilian Defense family.
Within that family this is a level-2 branch (the Wing Gambit → Carlsbad Variation line). The immediate parent line is Sicilian Defense: Wing Gambit, transitioned via 3…bxa3.
The opening sequence in prose form: 1.e4 c5, 2.b4 cxb4, 3.a3 bxa3. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.
Use the interactive board above to walk through the moves position-by-position. Click any move in the navigation to step backwards, or use the keyboard arrow keys. For statistical data — how often master-level players have reached this position, White's win-rate, draw frequency, Black's score — see the panel in the right column.
Caissly's coverage of B20 extends through every named sub-variation in this line and across all four locales (English, Spanish, Portuguese, Russian). Where editorial commentary exists for a specific variation it appears as the page body; otherwise the page presents the structural data, board, and statistics as shown here.