It’s not pretty, but you can print one in a single line of python:

print(*["".join("  " if i & j else "MM" for j in range(64)) for i in range(64)], sep="\n")

Here’s a cool video about it

https://yewtu.be/watch?v=kbKtFN71Lfs

Edit:

Meant to reply to msfroh, oops