Benko Gambit 25
Benoni 25
Bogo-Indian 25
Catalan 25
Dutch 25
Grunfeld 30
King's Indian Defence 30
Nimzo Indian 25
Queen's Gambit Accepted 30
Queen's Gambit Declined 25
Queen's Indian Defence 25
Semi-Slav 25
Slav Defence 25
Torre Attack 25
Trompowsky 30
@RikLikesTacos only one change to one thing per turn