This is a simple plan.

CheckiO has a lot of puzzle-solver missions.
(
Sudoku Solver,
Crossword Solver,
8 Puzzle
Bulls and Cows
Minesweeper
)

I would like to add one.

Do you know Lights Out ?
This is a simple and interesting puzzle.

How about implementing this solver in Python?

I would like to get a feedback about a mission I've just created.

**sample of initial code:**

def wall_keeper(wall):
"""solver of Lights Out Puzzle
number of each panel
+--+--+--+--+--+
| 1| 2| 3| 4| 5|
+--+--+--+--+--+
| 6| 7| 8| 9|10|
+--+--+--+--+--+
|11|12|13|14|15|
+--+--+--+--+--+
|16|17|18|19|20|
+--+--+--+--+--+
|21|22|23|24|25|
+--+--+--+--+--+
:param:
e. g.
['00001',
'01000',
'00110',
'00100',
'00000']
1: Lighting up
0: Lights off
:return:
e. g.
[2, 6, 7, 8, 10, 12, 15, 18, 24, 25]
"""
return []
if __name__ == '__main__':
from itertools import chain
def checker(solution, wall):
answer = solution(wall)
w = [list(map(int, r)) for r in wall]
for a in answer:
r, c = (a-1) // len(w), (a-1) % len(w[0])
w[r][c] = 1 - w[r][c]
if r+1 < len(w):
w[r+1][c] = 1 - w[r+1][c]
if r-1 > -1:
w[r-1][c] = 1 - w[r-1][c]
if c+1 < len(w[0]):
w[r][c+1] = 1 - w[r][c+1]
if c-1 > -1:
w[r][c-1] = 1 - w[r][c-1]
return sum(chain(*w)) == 0
assert checker(wall_keeper, [
'00001',
'01000',
'00110',
'00100',
'00000']), 'wall_1'

Created at: March 1, 2017, 12:43 p.m.; Updated at: March 13, 2017, 3:01 p.m.