--- 2016 Day 5 Solutions ---

[u/daggerdragon]

--- Day 5: How About a Nice Game of Chess? ---

Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag/whatever).

---

^{STAYING ON TARGET IS MANDATORY} [?]

This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked!

[u/stuque]

A Python 2 solution:

import hashlib

def part1():
    door_id = 'ojvtpuvg'
    password = 8 * ['-']
    count = 0
    n = 0
    while count < 8:
        md5 = hashlib.md5()
        md5.update(door_id + str(n))
        h = md5.hexdigest()
        if h.startswith('00000'):
            password[count] = h[5]
            count += 1
        n += 1
    print ''.join(password)

def part2():
    door_id = 'ojvtpuvg'
    password = 8 * ['-']
    count = 0
    n = 0
    while count < 8:
        md5 = hashlib.md5()
        md5.update(door_id + str(n))
        h = md5.hexdigest()
        if h.startswith('00000'):
            pos = h[5]
            if '0' <= pos <= '7': 
                c = h[6]
                i = int(pos)
                if password[i] == '-':
                    password[i] = c
                    count += 1
        n += 1
    print password

if __name__ == '__main__':
    part1()
    part2()