I wonder how my old C code stack up to this as well. 15ms seems like eternity btw. My naive old code without any thought in it (no bit magic, no intrinsics) and

I wonder how my old C code stack up to this as well. 15ms seems like eternity btw. My naive old code without any thought in it (no bit magic, no intrinsics) and only with -Ofast flag on i7 3770 Windows 7 iterates all the solutions in 10.1ms as well as prints first of them on the screen. If redirected to file it takes 0.232ms, again to iterate all the solutions and print first of them. It would be nice if authors provide some way to compare it to their code. Preferably on say 15 queens instead of 8 so pretty printing time could be ignored :)