Petrov's Defense: Millennium Attack

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3

Petrov's Defense: Millennium Attack after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 87654321abcdefgh

The Petrov's Defense: Millennium Attack is a chess opening classified as ECO C42, reached after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3. It is a line of the Petrov's Defense. Black is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 308 times by this move order. White won 46%, 5% were drawn and Black won 49%. The most popular continuation is 5… Nf6 (39% of games).

Engine evaluation: +0.21 (Stockfish, depth 48; best line 5… d5 6. Qe2 Be7 7. Bxe4 dxe4 8. Qxe4)

ECO
C42
Moves
9 plies
FEN
rnbqkb1r/ppp2ppp/3p4/8/4n3/3B1N2/PPPP1PPP/RNBQK2R b KQkq - 1 5
PGN
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3

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

Results by rating

Average ratingGamesWhite / draw / Black
0-149911543%54%
1500-199913950%48%
2000+5444%15%41%
All30846%49%

Most played moves

MoveGamesWhite / draw / Black
5… Nf6121 (39%)45%49%
5… d582 (27%)45%50%
5… Nc567 (22%)43%52%
5… Qe726 (8%)69%31%
5… Bf58 (3%)25%75%
5… Nxd21 (0%)100%
5… f51 (0%)100%
5… Bg41 (0%)100%

Master games

836 over-the-board games are classified under this line (White 48%, draw 33%, Black 19%). The strongest:

Search all games of the Petrov's Defense: Millennium Attack and its sub-variations

Highest-rated Lichess games

Comes from

Petrov's Defense (4. Nf3 Nxe4) 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4

More Petrov's 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.