I'm not sure either has significantly more theory than the other as they're both very theory-heavy (but maybe someone will correct me). Both allow white to choose the type of game that will happen (sharp or solid) so... for those 2 reasons IMO neither are very practical options.
Since you apparently like asymmetry, I guess you could go with the KID as 1.d4 d5 may not be to your liking in general... and ok, I suppose on average the KID lets you attack more often. Sure white can go for the exchange or fianchetto variations, but players who allow 1.d4 Nf6 2.c4 typically aren't shying away from complications as they're inviting everything from a Benko to a KID to a Grunfeld etc...
... which is another issue you may have to face. 1.d4 f5 is the Dutch, but after 1.d4 Nf6 you'll definitely need something for 2.Nf3. As I said above, 1.d4 Nf6 2.c4 is really throwing the gauntlet down, inviting black to play one of many different theory heavy defenses and not every white player is comfortable doing that.
By the way, entering a semi-slav via 1.d4 d5 2.c4 c6 may not be to your liking since it allows white to choose the super-stale slav exchange, so either way you may be starting with 1.d4 Nf6
Hello all,
I am writing this to ask for others' opinions regarding King's Indian Defense and the Semi-Slav.
Ordinarily I have always played the Classical Dutch against 1. d4 but lately in this past year I've become increasingly dissatisfied with the type of positions that I get in the Dutch and have become increasingly frustrated whenever I have to play against 1. d4 due to my lack of confidence in and my steadily decreasing comfort level with the Dutch. So I'm looking to completely learn a new opening to add to my repertoire against 1. d4 and I am now seriously considering learning either the Kings Indian Defense or the Semi-Slav.
So my multi-part question and reason for this post is:
What do you think in regards to these two openings and/or which of these is "better" overall and in regards to factors such as (1) practicality or "solidness" as an opening to play either in club games or tournament games; (2) difficulty (i.e. a more difficult opening in my mind is one that is more theoretically-heavy/demanding); (3) attacking opportunities; and (4) any other thoughts about either or both of these openings either from your own experiences playing either or both of these or from what you have seen in others' games that might help me make a better decision.
I plan to try playing a little of both of these openings either way to get a better sense for myself, but it would still be very helpful to me to hear other people's thoughts as to my questions above, since what I can learn from a cursory exploration of these openings will be more limited than the potential insights I may gain from people here who have far more experience with playing the Kings Indian and/or Semi-Slav.
Thank you very much for sharing your thoughts and comments on this.