Dresdner Kleinwort, the only bank to work on PartyGaming's flotation last year after others ruled themselves out of the deal over regulatory concerns, has picked up its fourth mandate from the gambling firm, advising on its €102m ($130.4m) takeover of rival Gamebookers.

PartyGaming confirmed it was to buy Gamebookers which is based in Antigua but run from Bulgaria, from Trident Gaming yesterday.