Rashid's best sets strong Yorkshire score
Adil Rashid scored a career-best 180 to help Yorkshire post a formidable first-innings 505 for nine declared on the second day of their LV= County Championship Division One clash with Somerset at Headingley.
Jack Brooks then made a valuable late breakthrough with the wicket of Somerset captain Marcus Trescothick to end a 90-run first-wicket stand between him and Nick Compton.
The paceman dismissed Trescothick lbw for 53 the ball after he had reached his half-century, but England opener Compton was still there at the close with a battling 33 off 133 deliveries as Somerset ended the day on 92 for one - trailing by 413.
Drizzle delayed the start of the second day for an hour and there was another brief hold-up after Yorkshire had resumed on 332 for five with Rashid on 120 and Andrew Hodd 14.
Steve Kirby twice bowled deliveries to Rashid which moved away sharply enough to go to wicketkeeper Jos Buttler's right for four byes and Kirby eventually picked up the wicket he deserved by finding the edge of Hodd's bat with one which left him.
Tim Bresnan departed in the next over, the last before lunch, when Peter Trego trapped him lbw for nought and Yorkshire began the afternoon session on 371 for seven with only a slim chance of securing a fifth batting bonus point.
With two of the 110 overs remaining they were 375 for seven but Richard Pyrah improved their chances of getting to the 400-mark in time by taking four boundaries off Trego, two extra-cover drives being sandwiched in between a leg glance and a steer to the third-man boundary.
Kirby responded with a tight over, however, and Yorkshire fell five short at 395 for seven.
Pyrah continued to push the score along after that, while Rashid seemed to lose some of his attacking flair of the first day, although he completed his 150 off 278 balls with 22 fours and went on to overtake his previous best score of 157 against Lancashire in August 2009.
Pyrah's spirited fifty came off 51 balls with seven boundaries but he added only one more four before his off stump was sent flying by Jamie Overton, having contributed 55 to a 79-run stand in 17 overs.
Rashid upped the tempo somewhat by moving a step forward to drive Jack Leach over long-on for six and Brooks continued the theme by driving the left-arm spinner for two consecutive sixes, the second of them raising the 500.
The end finally came for Rashid on 180 from 317 deliveries with 24 fours when he pushed wearily at Trego for Buttler to hold on to his fifth catch behind the stumps. Yorkshire promptly declared, leaving Brooks unbeaten on 33.
It was a courageous innings by Rashid, who had seen 430 added while he was at the crease, yet some of his earlier fluency had been missing. Nevertheless, his near-chanceless 180 took his first-class runs tally to exactly 4,000.
Trescothick and Compton saw Somerset to tea on 13 without loss but after the interval both were severely tested by Bresnan and Brooks, Trescothick being struck painfully on the left wrist by the England seamer when he attempted to shoulder arms.
Yorkshire were convinced that Brooks had Compton caught behind but the umpire was unmoved and a similarly loud appeal for a catch to Hodd down the leg side by Trescothick off Pyrah also brought a negative response.
Compton displayed his Test-match temperament by sticking in there against further good bowling, this time by Pyrah and Stevem Patterson, but when Pyrah's line strayed he hammered him through the covers.
It looked as if the openers would see out the day but Brooks struck with three overs remaining.
After pulling for four to register his 10th four, Trescothick was well beaten by the next ball, which had him lbw.