Also, Black can pick an opening where a3 isn't that useful, so it just wastes a move.
anderssen's opening???
i recently have began experimenting with new and unusual opening...
This is what killed my rating, favorite hobby, and love of the game.
Thankfully, I realized the error of my ways and started learning standard, classic, main-line openings and my game improved tremendously.
If you want to play something nobody has ever seen OTB in a tournament, try 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 and watch your opponent file a formal protest because you didn't start the game with 1.b4 or 1.c3 or whatever.
Take 1.a3 for example. Najdorf played 5. ... a6 in the Open Sicilian because he wanted to play e5 and prevent white from playing Nb5 which is an annoying move in the e5 Sicilian. So what does any of that have to do with 1.a3????? You can just play 1.e5 without worrying about black playing Nb4.
Good luck with your experiment. Hope you have better luck with it than I had.
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i recently have began experimenting with new and unusual opening and came accros the anderssen... i began to realize that in some defenses, black will play a6 for one reason or another, as seen in the najdorf sicillian... if you employed a3 (which is a6 reversed, duh) is it possible to turn these defenses into better tuned and stronger attacks???
Here is a reversed sicialian i have gone through...