Denon 1909 A/B Speakers and Zone 2

I am about to purchase a Denon 1909, but am a bit confused regarding the operation of the Speakers A/B and Zone 2.

I would like to have 1 set of speakers outdoors running off zone 2. Additionaly I would like to have speakers A and B running as well.

I have been told that Zone B runs off the "surround back" speakers and that Speaker A and B will runn off of Front A and Front B.

My question is, if I hook up like this, will all 3 sets of speakers work (I know that A/B will have the same source, but will they still both play if Zone 2 is also hooked up?)

Thanks