Sharjah, Moscow, Geneva and Palma De Mallorca in Spain will host the four revamped World Chess Grand Prix events in 2017.
The new-look Grand Prix series will be contested by 24 players, rather than 12 as had previously been the case, with 18 players in each tournament.
The dates are as follows:
Sharjah, UAE: February 17-28
Moscow, Russia: May 11–22
Geneva, Switzerland: July 5-16
Palma De Mallorca, Spain: November 15-26