I beat it by just marching the necromancer and earthelemental up the right  side and got a few skeleton+++ by promotion and used those to checkmate king.

Hey, 
> ps. Please kindly correct my language

In the title, "todays's" should be "today's", and also there should be a space between the word and parenthesis. So

> For those who are still struggling with it(if there are any)

should be:

> For those who are still struggling with it (if there are any)


There are also some phrases that don't sound natural to me.

> I'll rate it as insane difficulty personally

would be "I'd rate it as insane difficulty personally". Sorry, I don't know how to explain why that doesn't sound right, but "I'll rate it" sounds very present-tense to me.

> Just complete it with pure luck when I thought I am going to need to hit reset button

This part switches tenses: "just complete it" is present tense (as well as sounding like an instruction instead of a past event), "when I thought" is past tense.

> Just completed it with pure luck when I thought I would need to hit the reset button.

This phrase, "I thought I am going to need", also doesn't sound right to me, I think "I thought I would need" or "I thought I *was* going to need" would be used instead.

If informal, "the reset button" here could be just written as "reset", or just "reset button" like you typed.