And the division by 36 choose 19?Blitzfrog wrote:
Depending on what you're trying to calculate though. The multiplying by 12 is constant through out because there are only 12 ways you can win given any arrangement. But there are also the fact that there isn't only 12 ways to win with 19 tiles as the remaining 19-6 =13 tiles can be placed anywhere. That's why I multiplied the 12 with the fraction, not that you wouldn't know.
This one is impossible: