About this opening
Benoni Defense: King's Pawn Line, with Bg5 is an opening in the Encyclopedia of Chess Openings,
classified under code A65. ECO group A (A00–A99)
covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached
after 13 half-moves from the
starting position, with the move sequence 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 c5 7. d5.
It belongs to the Benoni Defense family.
Within that family this is a level-2 branch (the King's Pawn Line → with Bg5 line). The immediate parent line is Benoni Defense: King's Pawn Line, transitioned via 7.d5.
The opening sequence in prose form: 1.d4 Nf6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 d6, 5.f3 O-O, 6.Bg5 c5. 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 A65 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.