Brutal batting from Jos Buttler wrenched the initiative away from Yorkshire on the rain-hit first day of their LV= County Championship match at home to Somerset.
Needing every point they can muster from their final game of the season to keep alive their faint chance of avoiding relegation, Yorkshire were given encouragement by a double strike by Moin Ashraf which left Somerset on 88 for three.
But then Buttler launched an assault which brought him nine boundaries and carried the score to 140 for three from 41 overs, before another burst of rain ended play with 12 overs still to be bowled.
Nineteen-year-old opener Alex Barrow finished the day unbeaten on 55, with Buttler on 43.
Heavy showers meant the game could not get under way until 2.15pm, by which time 41 overs had been lost, and although Yorkshire had put their opponents in to bat there appeared to be little in the pitch for the seamers.
Wes Durston enjoyed another memorable day in the best season of his career as home side Derbyshire dominated the opening day of the LV= County Championship match against Kent. He raced to his third century of the summer from only 101 balls but fell to David Balcombe who produced an inspired spell of four for four in 24 balls after tea.
Opener Matt Lineker scored 71 in his second Championship game and shared a third-wicket stand of 176 in 33 overs with Durston after Kent had put the hosts in at Derby.
The Kent bowlers were below par until Balcombe roared in late on, although an unbroken stand of 141 between Ross Whiteley, who reached 71, and Jon Clare, on 76 at the close, meant Derbyshire ended the day in a strong position on 405 for six.