Queen's Gambit Accepted
At 1400–1799 Elo, theory ends around half-move 12. The move that leaves it is a mistake in 19% of cases, 3.4 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 139912half-movehalf of the games: 10 to 14
- 1400–179912half-movehalf of the games: 10 to 14
- 1800+13half-movehalf of the games: 11 to 16
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 theory7.7%
- The move that leaves it27.7%
- After it17.7%
3.6× the risk of a move inside theory
1400–1799
- Inside theory5.5%
- The move that leaves it19.0%
- After it13.0%
3.4× the risk of a move inside theory
1800+
- Inside theory2.3%
- The move that leaves it10.8%
- After it8.7%
4.8× 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. d4 d5 2. c4 dxc4 3. e4 e5 4. d519,593 played, 11.8 points lost
- 1. d4 d5 2. c4 dxc4 3. Nc3 Bf510,998 played, 11 points lost
- 1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 c6 5. axb5 cxb58,134 played, 14.3 points lost
- 1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e4 Bg47,343 played, 10.4 points lost
- 1. d4 d5 2. c4 dxc4 3. e4 e5 4. d5 Nf6 5. Nc3 Bb44,005 played, 33.7 points lost
- 1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Bxc43,827 played, 10.5 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.