You use variable-length encodings—shorter encodings for more likely moves, longer encodings for ones that happen infrequently. This is the thing the parent com

You use variable-length encodings—shorter encodings for more likely moves, longer encodings for ones that happen infrequently. This is the thing the parent comment was referring to, https://en.wikipedia.org/wiki/Huffman_coding https://en.wikipedia.org/wiki/Huffman_coding