1. I remember there's a kata that returns such output in the DB alr~~

2. Doing so would invalidate all the solutions so :)))

bravo

when i changed a puzzle
RuntimeError: maximum recursion depth exceeded while calling a Python object

damnit, left out a row in my question lol.
But yes ofcourse that makes sense. My mistake. thanks for answering.

Only adjacent directions should be reduced. It's like considering curvature of the Earth. Or maybe going down a spiral staircase where you end up in a different layer.

"NORTH", "WEST", "SOUTH", "EAST": array lengths differed, expected.length=4 actual.length=0

testSimpleDirReduc "NORTH", "WEST", "SOUTH", "EAST": array lengths differed, expected.length=4 actual.length=0

If that's the case, the answer should be {}, correct?

['NORTH','WEST','SOUTH','EAST'] should return [] but not ['NORTH','WEST','SOUTH','EAST'], WHAT A PITY!