Nimzowitsch Defense: Neo-Mongoloid Defense
1. e4 Nc6 2. d4 f6
The Nimzowitsch Defense: Neo-Mongoloid Defense is a chess opening classified as ECO B00, reached after 1. e4 Nc6 2. d4 f6. It is a line of the Nimzowitsch Defense. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 107 times by this move order. White won 53%, 8% were drawn and Black won 39%. The most popular continuation is 3. d5 (41% of games).
Engine evaluation: +1.27 (Stockfish, depth 28; best line 3. Nf3 e6 4. d5 exd5 5. exd5 Ne5)
- ECO
- B00
- Moves
- 4 plies
- FEN
r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - 0 3- PGN
1. e4 Nc6 2. d4 f6
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 74 | |
| 1500-1999 | 28 | |
| 2000+ | 5 | |
| All | 107 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 3. d5 | 44 (41%) | |
| 3. Nf3 | 24 (22%) | |
| 3. c4 | 9 (8%) | |
| 3. Nc3 | 7 (7%) | |
| 3. Bc4 | 5 (5%) | |
| 3. c3 | 5 (5%) | |
| 3. f4 | 4 (4%) | |
| 3. Qh5+ | 2 (2%) |
Highest-rated Lichess games
- toruvel (2149) – anidav (2096) 1-0 · 2026-09-01 · 180 + 0s
- poumski (2095) – anidav (2071) 0-1 · 2026-09-01 · 180 + 0s
- sdiaz (2070) – anidav (2049) 0-1 · 2026-09-04 · 180 + 0s
Comes from
Nimzowitsch Defense (1… Nc6 2. d4) 1. e4 Nc6 2. d4
More Nimzowitsch Defense lines (all)
- Nimzowitsch Defense (1. e4 Nc6) B00
- Nimzowitsch Defense: Breyer Variation B00
- Nimzowitsch Defense: Colorado Countergambit B00
- Nimzowitsch Defense: Colorado Countergambit Accepted B00
- Nimzowitsch Defense: Declined Variation B00
- Nimzowitsch Defense: El Columpio Defense B00
- Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit B00
- Nimzowitsch Defense: El Columpio Defense, Exchange Variation B00
- Nimzowitsch Defense: El Columpio Defense, Pin Variation B00
- Nimzowitsch Defense: Franco-Nimzowitsch Variation B00
- Nimzowitsch Defense: French Connection B00
- Nimzowitsch Defense: Hornung Gambit B00
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.