Scotch Game
At 1400–1799 Elo, theory ends around half-move 15. The move that leaves it is a mistake in 23% of cases, 2.9 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 139914half-movehalf of the games: 12 to 16
- 1400–179915half-movehalf of the games: 13 to 17
- 1800+16half-movehalf of the games: 13 to 18
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 theory12.1%
- The move that leaves it30.8%
- After it18.2%
2.6× the risk of a move inside theory
1400–1799
- Inside theory8.1%
- The move that leaves it23.2%
- After it14.4%
2.9× the risk of a move inside theory
1800+
- Inside theory4.2%
- The move that leaves it16.6%
- After it11.0%
4.0× 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. Nf3 Nc6 3. d4 exd4 4. Ng581,265 played, 12 points lost
- 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Nf673,553 played, 10.6 points lost
- 1. e4 e5 2. Nf3 Nc6 3. d4 f641,241 played, 16.5 points lost
- 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 b625,120 played, 12.3 points lost
- 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Ng5 h6 5. Nxf722,520 played, 12.1 points lost
- 1. e4 e5 2. Nf3 Nc6 3. d4 Bb4+20,780 played, 12 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.