I've heard that Arjuna & Karna had various wars before the main war of Maharabharata and Arjuna won all the times.
How did it happen? Because Karna was better warrior than Arjuna which was revealed by none other than Lord Shri Krishna after Kurukshetra war was over.
So the question is
- Did Arjuna defeat Karna easily?
- Was Lord Shri Krishna with Arjuna at that time and did he help him while battling with Karna?
What exactly happened? Can I get answer in detail?