I guess your issue is that there are players with very different skill levels at the Challenger level. Like in real life, there are some players that you just can't beat till you have trained your skills enough.
If you don't like that, instead of cheating, I'd recommend starting a career at the rank #30, and even #10.
And yes, if you have top skills, you should be able to beat all Challenger players relatively easily.
== Mana Games ==
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