KCI on scrimmage kick
 

Can K1 push R2 into R1 as R1 is in position to receive a scrimmage kick/punt? If R2 is (a) blocking or (b) do nothing but standing near R1. 6-5-6 does not seem to address this in my mind.

K1 pushing of R2 into R1 that may subsequently cause the ball to be touched by R1 or R2 is ignored. Thus when K tries to pick it back up you will have first touching by K and any subsequent action can be brought back to that point. As far as KCI I am not sure that it would apply in this situation, but the touching by R would be ignored.

Don't have my books, but I believe K is not allowed to contact an R player unless warding off a block. In the second scenerio you posed, if R is just standing there, I think you have a KCI for contacting R.

K1 may block anyone unless it is KCI, which would mean he would have to block R1. Since he is blocking R2 it is not an illegal block. Although I think you will rarely see K blocking on a scrimmage kick as they are the ones attempting to make the tackle. There is a good article on grantsrc's website that talks about blocking as "dancing" and how to determine who is "leading" the dance in order to judge forced touching.

But while the ball is in the air, if R2 is close enough to where the ball is coming down (i.e. in the OP, he's close enough to R1 to be blocked into him, and R1 is in or near the position where the ball is coming down), then contacting R2 (unless combating a block) would be KCI, since you don't yet know that R2 is not going to try to catch the ball.

If R2 is actively trying to block K, I agree with you.

totally agree with you on that situation