Joe Root completed a superb third day with 156 as Yorkshire cruised to victory in the Vitality County Championship against Glamorgan at Headingley.
Root followed in the footsteps of opener Fin Bean, who scored his first century of the season late on day two, to make 173 in Yorkshire's imposing first-innings total of 519 for seven.
Glamorgan then posted 171 for three from 60 overs in their second innings, with unbeaten Sam Northeast and Colin Ingram approaching half-centuries. The visitors were 127 all out.
Root, on 92 overnight, scored a fine century - his second in as many Division Two matches - and put on 265 for the third wicket with Bean by mid-morning as the hosts responded to 221 on a used pitch.
Harry Brook then piled further pressure on the beleaguered visitors' attack with two sixes in his 65, although he fell to former England Test leg-spinner Mason Crane to spark the declaration in the first half of the afternoon.
Crane finished with a consoling five for 152 from 23.1 overs.
Despite batting on a deteriorating pitch, Yorkshire's innings progressed at a rate of just over 5.5 runs an over. They were helped by a depleted Glamorgan attack that made mistakes with the ball.
Glamorgan had the better of the early-season draw here last year when Australian seamer Michael Neser took a hat-trick. But this is a very different attack to the one that took to the field exactly 12 months ago.
Fellow seamer Timm van der Gugten is injured and Neser has not returned to the club this season. Another quick, Harry Podmore, is also out and all-rounder Dan Douthwaite is rested.
Batting with more aggression than usual, the left-handed opener made a conscious effort to put the pressure on the bowlers, resulting in Bean's highest first-class score.
The 22-year-old had spent time in India in January working on batting against spin as part of an England Lions batting camp.
It proved to be 10 days well spent, given the spinning nature of the pitch, as he struck 24 fours and five sixes in 173 balls. Four of his five sixes were hit over long-on or straight down the ground.
For Root, he backed up last weekend's 119 in the draw against Derbyshire with a typically classy innings. He reached his century off 100 balls in the first 15 minutes of the innings, hitting 21 fours in 165 balls.
Bean, dropped at first slip on his overnight 140, was the first wicket to fall, bowled back to Crane before Root was trapped lbw by seamer James Harris.
Crane, looking for more regular cricket, is on a season-long loan from Hampshire.
He took four of his five wickets on day three and will have been particularly pleased that his last three came for just one run, including Jonny Tattersall for a confident 55 and Brook caught at backward point. The hosts declared immediately.
Glamorgan openers Eddie Byrom and Billy Root started their second innings brightly, putting on 56 in 18 overs.
But both fell on either side of tea as the score slipped to 72 for two. Root played Dan Moriarty's left-arm spin for 35 before Byrom was caught at deep square-leg off the sweep of Dom Bess' off-spin.
Kiran Carlson was then unlucky to be run out when he edged a drive off Bess to Joe Root at silly point. The ball bounced back to wicketkeeper Tattersall, who removed the bails as the batsman scrambled to his feet - 93 for three.
Fortunately for the visitors, Northeast and Ingram steadied the ship and held firm for the rest of the day, resuming on 46 and 43 respectively.
They will need to build significantly on their 78-run partnership to give Glamorgan any chance of avoiding defeat.