Hull City cemented their place in the top six with an impressive victory that keeps the pressure on Birmingham’s former Huddersfield boss Lee Clark.
Sone Aluko scored twice against his former club to help Steve Bruce’s side prevail against Birmingham in a pulsating encounter.
Aluko ran clear twice to put the Tigers in command inside 30 minutes and James Chester headed home the Nigerian’s corner to make it 3-0 soon after.
Ravel Morrison replied for Blues when he met Nikola Zigic’s knockdown.
Zigic’s header set up Marlon King to pull another goal back at the start of the second half but Hull held out and remain fourth in the Championship.