A tight finish for the second week running, Adelaide led by as much as 15 points in the last but when scores were level late, a Simon Goodwin point got the visitors home.
Kurt Tippett kicked three goals while Jared Petrenko and Taylor Walker kicked two apiece.
Goodwin along with Bock, Tippett and Myke Cook were Adelaide's best while a host of youngsters including Will Young, Tony Armstrong and Rory Sloane performed well.
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