Tagenarine Chanderpaul made an unbeaten double century after setting a new West Indies record of 336 for the first wicket with Kraigg Brathwaite on Monday before the tourists declared at 447-6 in the first Test against Zimbabwe.The stand surpassed the 298-run partnership shared by Gordon Greenidge and Desmond Haynes against England in 1990.Brathwaite made 182 before being trapped leg before while Chanderpaul, the son of former West Indies skipper Shivnarine, finished on 207 not out after hitting a six to reach a double ton in only his third Test outing.It is the ninth highest opening Test partnership, a long way short of the overall record of 415 added by South Africa's Graeme Smith and Neil McKenzie against Bangladesh in Chattogram in 2008.Both batsmen began day three at the Queens Sports Club with hundreds under their belts as West Indies resumed on 221 without loss after two rain-affected days.The scoring rate had been under two and half until that point but Brathwaite, 116 not out overnight, immediately set about the attack with the run rate early on standing at five per over.Brathwaite clattered his way to 182 and looked odds-on to score the second double century of his Test career when he was trapped by spinner Wellington Masakadza.For once the captain misread the length and tried to sweep a full-length delivery on off stump, ending an innings which spanned 312 balls and included 18 fours.It was a welcome return to form for Brathwaite, who made only 19 and three against Australia in his last Test, two months ago in Adelaide.It was small reward for the Zimbabwe bowlers who had toiled 114 overs before making the breakthrough.They were rewarded with a second wicket before lunch when Kyle Mayers was bowled through the