West Indies resuming after tea on 139 for seven are all out for 189 to give England a first innings lead of 68 runs on the second day of the third and final Wisden Test at Kensington Oval.
James Anderson bowled a brilliant spell, ending with six for 42 from his 12 overs.
Just like in the morning session, when he tore through the Windies’ top order, Anderson claimed the last three wickets after tea.
He first had Versammy Permaul caught behind for 18, before clean bowling Jerome Taylor for a fiery 15 off eight balls.
Blackwood was the last man to be dismissed, 15 runs short of a well-deserved century, when he was caught by Moeen Ali on the boundary for 85.