I watched Rai's coverage last night.
CF set e tempo on the lower part of the climb that had most in difficulty. Ricco looked like he could have sat up and had a cup of tea.
Of the small bunch left, none could get anywhere near him, when he did a passable impression of Contador. Left them all dead on the road. Unfortunately for him, Faenza was 20km down the road, so he actually sat up on the climb and waited for the first of the few.
He bossed the group all the way to the line, where he got out sprinted by a wheel sucking Serpa, the only guy who did no work. Hence the gesture.