Nimzowitsch Defense
At 1400–1799 Elo, theory ends around half-move 10. The move that leaves it is a mistake in 16% of cases, 3.5 times as often as a move inside it.
Where theory ends
Half-move at which a game leaves what at least 100 games played. Half of all games end between the two outer numbers.
- up to 13999half-movehalf of the games: 8 to 11
- 1400–179910half-movehalf of the games: 9 to 12
- 1800+11half-movehalf of the games: 9 to 13
How risky the exit is
Share of moves that lose at least 10 points of winning chances, in the same stretch of the game (half-moves 8 to 24).
up to 1399
- Inside theory6.0%
- The move that leaves it22.5%
- After it18.1%
3.7× the risk of a move inside theory
1400–1799
- Inside theory4.7%
- The move that leaves it16.3%
- After it13.6%
3.5× the risk of a move inside theory
1800+
- Inside theory3.4%
- The move that leaves it12.3%
- After it10.5%
3.6× the risk of a move inside theory
Most common mistakes inside theory
Moves the engine rates down although many players choose them. The last move of each line is the mistake, the loss is the mean in points of winning chances.
- 1. e4 e5 2. d4 Nc6 3. d5 Nd429,039 played, 20.8 points lost
- 1. d4 d5 2. e4 Nc612,251 played, 10.7 points lost
- 1. e4 e5 2. d4 Nc6 3. d5 Nd4 4. Nf35,841 played, 22.1 points lost
- 1. e4 Nc6 2. Qh53,795 played, 12 points lost
- 1. e4 d5 2. e5 Nc6 3. d4 Bf5 4. Bd33,368 played, 13.6 points lost
- 1. e4 Nc6 2. d4 e5 3. d5 Nd4 4. Be32,971 played, 17.8 points lost
Where does your theory end?
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Opening names from the Lichess opening database (CC0). A game belongs to the most specific named opening it reaches within 39 half-moves.