Kirtley extended his season haul to 27 wickets

And the last three wickets fell in the space of as many runs to leave the Tykes all out for 216.

Richard Blakey was the ninth man out, lbw to Robin Martin-Jenkins having grafted through 154 deliveries for his 52.

Kirtley followed up with a firey spell, bowling three maidens in his four overs before bad light brought an early close.

But openers Matthew Wood and Craig White led the hosts to eight without loss from the seven overs available.

Yorkshire: M J Wood, C White, M J Lumb, S M Katich, A McGrath, V J Craven, R J Blakey (Capt, Wkt), G M Hamilton, C E W Silverwood, R J Sidebottom, S P Kirby.

Sussex: R R Montgomerie, M W Goodwin, M H Yardy, P A Cottey, T R Ambrose, R S C Martin-Jenkins, M J Prior (Wkt), K J Innes, M J G Davis, R J Kirtley (Capt), B V Taylor.

Umpires: M J Harris and D R Shepherd