Make your own opening


1. e4 e5
2. f4 exf4
3. Nf3 d6
4. d4 g5
5. Bc4 g4
6. 0-0
I've checked it with a computer, and also it isn't a new idea, its just a bit rare with only 4 or 5 games in most databases
Again, I would rather stick to openings already invented when playing tournaments, but this opening is reasonable.
I'm currently playing around with this system as white with interesting results. Tends to give rise to somewhat complex positions if my opponents don't attack my development early with 1... c5, d5 or e5 with the intent of exchanging. After 1.d4, 2.c4 or vice versa, move order will depend on my opponent's response.
If the opponent is passive, main sequence goes like this:
9.a3 or h3 are optional. Still working on it, but it seems pretty solid and is very flexible. Can easily transpose into something else if need be. Works well against several black openings.