Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4

Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit after 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4 87654321abcdefgh

The Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit is a chess opening classified as ECO D31, reached after 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4. It is a line of the Semi-Slav Defense. Black is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 16 times by this move order. White won 44%, 6% were drawn and Black won 50%. The most popular continuation is 5… Nf6 (69% of games).

Engine evaluation: +0.12 (Stockfish, depth 32; best line 5… Nf6 6. g5 Ne4 7. f4 Bd6 8. Nf3)

ECO
D31
Moves
9 plies
FEN
rnbqkbnr/pp4pp/2p1p3/3p1p2/2PP2P1/2N1P3/PP3P1P/R1BQKBNR b KQkq - 0 5
PGN
1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
1500-1999367%33%
2000+1338%54%
All1644%50%

Most played moves

MoveGamesWhite / draw / Black
5… Nf611 (69%)36%64%
5… fxg44 (25%)75%25%
5… Nh61 (6%)100%

Master games

56 over-the-board games are classified under this line (White 55%, draw 18%, Black 27%). The strongest:

Search all games of the Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit and its sub-variations

Highest-rated Lichess games

Comes from

Semi-Slav Defense: Anti-Noteboom, Stonewall Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5

More Semi-Slav Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.