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Chess Opening Theory/1. e4/1...e5/2. Nc3/2...Nf6/3. f4
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Vienna Game rd nd bd qd kd bd rd pd pd pd pd pd pd pd nd pd pl pl nl pl pl pl pl pl pl rl bl ql kl bl nl rl
Vienna Gambit
Black should not play /3...exf4/ because after 4. e5, the black knight has no free square but its home square. The correct move here is /3...d5/.
Theory table
.
1. e4 e5 2. Nc3 Nf6 3. f4
3
...d5
=
...d6
...exf4
+/-
References
Vienna game