I feel your pain. But it kinda does -- the Description says that it uses x for rows and y for columns. It's messed up, but it is specified.

The description does not specify indexing order - x, y vs y,x.
Worse, the preloaded tests don't too.
So, if you initially chose the wrong order, you cannot understand what is problem with random tests.
Could you add such test, please, f.e. (is_efficient(11, 10, 5.5), True) ?

i have a few question regarding this kata:

1. why is the FIELD matrix preloaded instead of passed as a parameter?
2. why is it populated with strings instead of floats or ints?

also the examples in the description are confusing

FIELD in Python && Ruby should be decimal numbers and not strings, with 170++ completion, it is not too late to enforce such changes

Re-raised as an issue

Approved

Fixed in latest fork

Fixed in OP's fork

Approved

python new test framework is required. updated in this fork

Fixed by OP's fork

Approved

random tests are attackable

python new test framework is required. updated in this fork