48 Professor at MIT can read minds! 2018-05-24T19:15:23.210

31 Have you learned your fib-abc? 2015-10-24T18:38:03.347

23 Encode - Shuffle - Decode 2018-09-23T15:41:17.293

20 Confuse the Dakotas 2014-12-15T14:29:32.950

19 Move to the printable ASCII front 2015-07-03T22:06:18.887

15 Prime Factor Encoding 2018-04-26T10:43:08.283

14 Implement bzip2's run-length encoding 2015-07-13T19:57:56.783

13 Code the Huffman! 2015-10-27T05:58:59.537

12 Encode a string for aliens that read and write English, but don't know ASCII 2014-05-12T15:16:43.107

12 Balanced Zero-One Encoding 2018-03-05T07:58:46.963

10 Convert a bytes array to base64 2014-05-04T21:53:12.447

10 Braincopterify an image 2016-10-10T17:35:40.247

9 Double run-length encoding 2016-05-06T18:43:57.970

7 Mis-decode a date 2019-01-07T16:28:00.427

6 Implement an encoder for RFC 1924 IPv6 Addresses 2016-01-27T09:40:09.047

6 Bijection: tree-like lists - natural numbers 2018-07-31T10:21:33.920

3 Dynamic Encoding: A CIA Mission 2015-10-23T00:04:00.257

1 Find all possible dates 2019-12-05T16:45:23.710