You first need to send your friend a friend request on chess.com and he/she needs to accept. Then when you get into a game there should be blue lettering saying "add 15 seconds". Thats the only way I'm aware of.
different time controls?
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Hello, sorry if this has already been asked before but at my work me and my friends used to play on breaks with adjusted time controls, so for example the better player would get 5 minutes and the worse player might get say 10 minute on the clock.
Due to coronavirus we cant play anymore but want to do this online but cant seem to find anyway to set the clocks differently, even in a friendly unranked game, is there any way around this or perhaps somewhere else we could do this?
Many thanks