About this opening
Sicilian Defense: Boleslavsky Variation is an opening in the Encyclopedia of Chess Openings,
classified under code B58. 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 12 half-moves from the
starting position, with the move sequence 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5.
It belongs to the Sicilian Defense family. Within that family this is a sub-variation (the Boleslavsky Variation line).
The opening sequence in prose form: 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Be2 e5. From this position exactly one named continuation is recorded in the encyclopaedia.
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. The list of recorded continuations sits directly below the board. 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 B58 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.