Nimzowitsch Defense: Colorado Countergambit
1. e4 Nc6 2. Nf3 f5
The Nimzowitsch Defense: Colorado Countergambit is a chess opening classified as ECO B00, reached after 1. e4 Nc6 2. Nf3 f5. It is a line of the Nimzowitsch Defense. White is to move. 1 named line continues from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 2,290 times by this move order. White won 48%, 3% were drawn and Black won 49%. The most popular continuation is 3. exf5 (50% of games).
Engine evaluation: +0.86 (Stockfish, depth 48; best line 3. exf5 d5 4. Bb5 Bxf5 5. Ne5 Bd7)
- ECO
- B00
- Moves
- 4 plies
- FEN
r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 0 3- PGN
1. e4 Nc6 2. Nf3 f5
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 472 | |
| 1500-1999 | 1,277 | |
| 2000+ | 541 | |
| All | 2,290 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 3. exf5 Colorado Countergambit Accepted | 1,150 (50%) | |
| 3. e5 | 605 (26%) | |
| 3. Nc3 | 190 (8%) | |
| 3. d3 | 120 (5%) | |
| 3. d4 | 65 (3%) | |
| 3. Bc4 | 61 (3%) | |
| 3. Bb5 | 43 (2%) | |
| 3. Bd3 | 14 (1%) |
Master games
88 over-the-board games are classified under this line (White 44%, draw 8%, Black 48%). The strongest:
- GM Marcin Krzyzanowski (2494) – GM Magnus Carlsen (2840) 0-1 · 2nd 3-0 Thu 15th Jan 2026 · 2026-01-15
- GM Vojtech Plat (2482) – GM Magnus Carlsen (2837) 0-1 · Titled Tue 6th May Late · 2025-05-06
- GM Vladimir Baklan (2587) – GM Samuel Sevian (2660) 0-1 · Titled Tuesday 9th Mar · 2021-03-09
- FM Georgios Ketzetzis (2265) – GM Magnus Carlsen (2823) 0-1 · 1st 3-0 Thu 24th Sep 2026 · 2026-09-24
- FM Jeevan Karamsetty (2244) – GM Magnus Carlsen (2831) 1/2-1/2 · Titled Tue 12th Nov Early · 2024-11-12
Search all games of the Nimzowitsch Defense: Colorado Countergambit and its sub-variations
Highest-rated Lichess games
- suyijia2004 (2718) – Rookz77 (2664) 1-0 · 2026-09-01 · 180 + 0s
- Meatloaf927 (2689) – Rookz77 (2657) 1-0 · 2026-09-01 · 180 + 0s
- GeForceExperience (2608) – Rookz77 (2690) 0-1 · 2026-09-01 · 180 + 0s
Comes from
Nimzowitsch Defense: Declined Variation 1. e4 Nc6 2. Nf3
Continuations
- Nimzowitsch Defense: Colorado Countergambit Accepted B00 · 1. e4 Nc6 2. Nf3 f5 3. exf5
More Nimzowitsch Defense lines (all)
- Nimzowitsch Defense (1. e4 Nc6) B00
- Nimzowitsch Defense (1… Nc6 2. d4) B00
- Nimzowitsch Defense: Breyer 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
- Nimzowitsch Defense: Kennedy Variation B00
- Nimzowitsch Defense: Kennedy Variation, Bielefelder 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.