Armand Gnanduillet grabbed a last-gasp equaliser to snatch a 1-1 draw for Blackpool and extend Charlton's winless run to five league games.Joe Aribo weaved his way past two opponents and before driving into the bottom corner for his first league goal to give Charlton the lead but Gnanduillet's late intervention earned the visitors a share of the spoils.The hosts went ahead in the 15th miunte when academy graduate Aribo's low finish found the back of the net and nearly double their advantage when Leon Best met Jay Dasilva's inch-perfect cross from the left but his header drew a superb point-blank stop from Ben Williams.The Tangerines retained more possession in the second half in their pursuit of an equaliser, but both sides struggled to create clear-cut chances and it took until the 89th minute before Gary Bowyer's side eventually levelled through Gnanduillet.Charlton were unable to deal with a goalmouth scramble and the powerful striker headed past Ben Amos from close range with Blackpool's first registered shot on target of the match and earn a point.