COUNTY CHAMPIONSHIP DIVISION ONE, Taunton, day three (close):
Somerset 401-3d v Surrey 47-1
Marcus Trescothick's superb century gave Somerset maximum batting points on another rain-affected day at Taunton.
Following Wednesday's complete washout Trescothick resumed on 46 and compiled 158 with 23 fours and three sixes.
He was dropped on 56 and 132 but shared 223 with South African Zander de Bruyn, who hit 15 fours in an unbeaten 109 before Somerset declared on 401-3.
Andy Caddick celebrated a new contract by removing Scott Newman as Surrey closed day three 354 behind at 47-1.
The 39-year-old former England seamer has signed a one-year deal for 2009 and took the new ball with his customary skill.
Trescothick earlier also gave another masterclass, scoring his second fifty in 79 balls and his third in a mere 31.
He took 24 off an over from West Indian left-armer Pedro Collins, and later hit Australian paceman Matthew Nicholson for two fours and a six.
Twice he was reprieved, however, Saqlain Mushtaq spilling a return catch and Nicholson failing to react to a sharp chance at slip off Saqlain.
His captain Justin Langer had helped him an overnight opening stand of 110 to 132 before falling to a top-edged pull shot off Jade Dernbach, Usman Afzal taking a fine catch running in from deep square.
But that merely brought in de Bruyn, who has also agreed a new one-year deal, looked in good form from the start and produced some exquisite drives, both straight and through the covers.
Newman looked rather unhappy with his lbw decision when Surrey replied, but Stewart Walters and Mark Ramprakash survived several other close calls against Caddick, Charl Willoughby and Alfonso Thomas in the closing overs.
A further 18.4 overs were lost to rain on the penultimate day and a draw now looks the only outcome.
Rain was falling in the final over of the day forcing the players off with four balls remaining.