Python. I think it’s worth replacing the tab character in the second line of the “Solution” block with 4 spaces. There is no point in pushing the user towards “bad” practices.

Here is the correct graphic
https://photos.app.goo.gl/absYB5tSHjsGXjow5

Please add math notation to the line in KataDesription:
In other words, given as input a precision of epsilon we will stop the iterative process when the absolute value of the difference between our calculation using the Leibniz series and the Math::PI constant of your language is less than epsilon.
+
|result - Math::PI| <= epsilon

Because Google translate just fries the brain in a collider!

Who is Sir Bosworth? Is it folklore, history?

Thank you. I understand. Unfortunately, the documentation contains TBD ...
https://docs.codewars.com/concepts/kata/solutions/#forking-solutions

All rights to this code belong to Mr. @Blind4Basics. I just learned from his example, and analyzing his code made it clearer to me.

Attention, in the comments of the code, solutions from @ kiri11-mi1 contain obscene expressions in Russian.

Attention, in the comments of the code, solutions from @ kiri11-mi1 contain obscene expressions in Russian.

Guys! It's good that you made the puzzle. But not all participants have English as their first language. They can't play on words ... Add the phrase to the end of the Kata Description: "And remember, time does not stand still." To understand "increase - do not increase".

Not work.

Thank you

For Python
In part 'Kata Description', block 'Find more details below: ', row 3 there is a typo.
Right so: checkDigit(67845123654000, 4, 2, 5) -> true, 5 exists in 845

You are breaking logic.
Your condition:
"isMatching checks if a string can be created by combining and rearranging the letters of the other two strings (case insensitive)."
Therefore, it is permissible to use combinations of not all letters. An additional restriction should be added to the condition - to use all letters.
False -
"be able to use everything"
True -
"You must use all characters on two lines."