This is clever and a great read. Reminds me a bit of finding hashes, for example, that are within a certain Hamming distance to a target value (hash). If the di

This is clever and a great read. Reminds me a bit of finding hashes, for example, that are within a certain Hamming distance to a target value (hash). If the distance you're interested in is small (e.g., 1 bit), then it might be faster to check for 64 exact target values than to check all values for off-by-1 bit. Very cool. Thank you for posting.