Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line

An entry in the Encyclopedia of Chess Openings (ECO D31), reached after 10 half-moves: 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6.

Black rook — Use ← → arrows or click moves to step through.

Black knight — Use ← → arrows or click moves to step through.

End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line is an opening in the Encyclopedia of Chess Openings, classified under code D31. ECO group D (D00–D99) covers closed games and semi-closed games beginning 1.d4 d5, covering the Queen's Gambit, Slav, Grünfeld and related queen-pawn structures. This particular variation is reached after 10 half-moves from the starting position, with the move sequence 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6.

It belongs to the Semi-Slav Defense family. Within that family this is a level-3 branch (the Noteboom Variation → Anti-Noteboom Variation → Belyavsky Line line). The immediate parent line is Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, transitioned via 5…f6.

The opening sequence in prose form: 1.d4 d5, 2.c4 e6, 3.Nc3 c6, 4.Nf3 dxc4, 5.Bg5 f6. 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.