Do someone know where could I find some strategy and tactics about 4ir? Thanks

Try these two links: http://www.cwi.nl/~tromp/c4.html and http://freepages.genealogy.rootsweb.com/~jamesdow/connect4.htm … Both links are referring to the 6x7 game, but much of this discussion applies to the 8x8 game played here.

Thanks Ed !