Offsides apply in the final (attacking third) only.
1) Centre Back (CB) passes out to the Right Back (RB).
2) The RB then must play either back or sideways in their own defending third, or (as shown above with a pass to CM2) pass into the mdifield third to a midfield player to develop possession.
3) CM2 then looks to play forward into S3, at which point the team has successfully played through each third and can score.