Bruteforcing Reddit’s 5th Grade Maths Problem Using Python

I saw this post on r/midlyinfuriating.

I was very enthusiastic to bruteforce the solution in Python.

Here’s the code I wrote (without ChatGPT’s help, LOL!):

from itertools import permutations
from time import time

start = time()

perm = permutations(range(1,10))

perm = list(perm)

l = len(perm)

for j in range(l):
    combo = perm[j]
    a = combo[0]
    b = combo[1]
    c = combo[2]
    d = combo[3]
    e = combo[4]
    f = combo[5]
    g = combo[6]
    h = combo[7]
    i = combo[8]
    
    if 9+a-6 == b-3:
        if 4+d*5-f == 6:
            if 8-5 == g-h*2:
                if c+1+7-4 == 8:
                    if 7 == e*3-i-2:
                        if 9-4/8*c == 7:
                            if a == d+5-1-e:
                                if 6-5+g-7 == 3:
                                    if b == f-h-4+i:
                                        if 3*6-2*8 == 2:
                                            print ('Solution: ')
                                            print(combo)

end = time()

print('')
print('It took '+str(end - start)+' seconds to solve.')

Here’s the output:

Solution: 
(1, 7, 4, 2, 5, 8, 9, 3, 6)

It took 0.41939449310302734 seconds to solve.

This was very fun!

The above code is on Github.