New Road (third day of four): Worcestershire 450-8 dec. and 296-3 dec., Derbyshire 343 and 34-0.
Stephen Moore scored his fourth LV County Championship century of the season as Division Two leaders Worcestershire turned up the heat on Derbyshire at New Road.
The 27-year-old scored 156 to enable his side to set the visitors a daunting victory target of 404 in a minimum of 112 overs. By the close Derbyshire were 34 without loss after being spared the challenge of facing paceman Simon Jones who did not bowl as a precaution because of tightness in a hamstring.
Moore, on the wanted list of at least seven other counties, was again in devastating form to become the second batsmen in the country this year to register 1,000 Championship runs, the first having been his captain Vikram Solanki.
He struck four sixes and 15 fours off 168 balls and put on 172 in 33 overs for the third wicket with Ben Smith whose unbeaten 72 contained five fours off 100 deliveries.
Worcestershire, however, had to ride their luck when they began to build on a first-innings lead of 107. Daryl Mitchell, on 26, was dropped at first slip by Chris Rogers who then put down Moore on 22. The unlucky bowler on both occasions was Jon Clare.
The Worcestershire duo proceeded to compile 93 in 22 overs before the visitors started to make inroads thanks to West Indian paceman Wavell Hinds who grabbed two wickets in three balls. He had Mitchell caught at slip by Clarke and then had Solanki held at cover by Graham Wagg for his first duck of the season.
Moore, however, carried on regardless and lofted a six over long-off off Hinds to register his half-century at the same time as putting Worcestershire into three figures in the 24th over.
He added another six, this time over long-on off Kevin Dean, shortly after Smith had survived a one-handed chance to wicketkeeper Tom New off Hinds when on eight.
By the time Moore reached his first century at New Road this season he had struck 11 fours, as well as the two sixes, off 109 balls.
After being dropped by Hinds at long-off off Clarke while on 123, he passed his previous highest Championship score this summer of 129 against Gloucestershire at Cheltenham last week. He was bowled when going down the pitch to Greg Smith before Worcestershire, winners of their last three Championship matches, declared on 296 for three.
Earlier, Derbyshire, needing 301 to avoid the follow on, had resumed in the morning on 278 for six off 89.4 overs and were dismissed for a battling 343 off 105.3 overs.
The impressive Jones, who took three wickets for six runs in 10 balls the previous day, had five for 110 - his fourth five-wicket haul in the Championship this season. The 2005 Ashes hero claimed his five scalps for only 17 runs in 27 balls and lifted his tally in the competition this summer to 42.
Jones began the day by removing Tom New with his first delivery, courtesy of a catch at mid-off by Solanki, and completed his five-wicket haul by trapping Wagg leg-before. Clare then offered a smartly-taken slip catch to Graeme Hick off Gareth Andrew.
Dean and Charl Langeveldt added 31 for the last wicket before another Hick catch, this time off young paceman Imran Arif, accounted for Dean for 25.