Sicilian Defense: Heidenfeld Variation

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3

Sicilian Defense: Heidenfeld Variation after 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3 87654321abcdefgh

The Sicilian Defense: Heidenfeld Variation is a chess opening classified as ECO B22, reached after 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3. It is a line of the Sicilian Defense. Black is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 6 times by this move order. White won 50%, 0% were drawn and Black won 50%. The most popular continuation is 5… d6 (67% of games).

Engine evaluation: −0.09 (Stockfish, depth 50; best line 5… e6 6. g3 d6 7. Qe2 Nxe5 8. Nxe5)

ECO
B22
Moves
9 plies
FEN
r1bqkb1r/pp1ppppp/2n5/2pnP3/8/N1P2N2/PP1P1PPP/R1BQKB1R b KQkq - 4 5
PGN
1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3

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

Results by rating

Average ratingGamesWhite / draw / Black
1500-19992100%
2000+475%25%
All650%50%

Most played moves

MoveGamesWhite / draw / Black
5… d64 (67%)25%75%
5… e61 (17%)100%
5… a61 (17%)100%

Master games

51 over-the-board games are classified under this line (White 39%, draw 18%, Black 43%). The strongest:

Search all games of the Sicilian Defense: Heidenfeld Variation and its sub-variations

Highest-rated Lichess games

Comes from

Sicilian Defense: Alapin Variation 1. e4 c5 2. c3

More Sicilian 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.