My colleague (bronze league) asked me a moment ago what he should have done as protoss against the marines and marauders supported by tanks that attacked him yesterday.
I recommended sentries to reduce the marine damage, zealots to hurt the marines (with speed upgrade if possible) and 2-3 phoenixes to lift the tanks up so your zealots actually reach the enemy. Then blink in with stalkers to kill the (remaining) tanks as quickly as possible while the zealots divert the marauder fire.
It seems to be an overly complex solution that requires good micro he might not have, but was the first solution that came to my mind. What would you recommend?
A solution for all races would be good since others playing other races might find this question.