Huffman+Base64 Sokoban Level Encoding Format
From Sokoban Wiki
Level Compression per Huffman-Encoding
1 - [ - ] Floor 01 - [ # ] Wall 0011 - [ $ ] Box 0010 - [ . ] Target 0001 - [\n ] NewLine 00000 - [ * ] Box on Target 000011 - [ @ ] Player 000010 - [ + ] Player on Target
/\ 1 0 / \ [-] /\ 1 0 / \ [#] /\ / \ 1 0 / \ / \ /\ /\ 1 0 1 0 / \ / \ [$] [.] [\n] /\ 1 0 / \ /\ [*] 1 0 / \ [@] [+]