<p>Despite the application of high power computing, there remains a body ofunsolved ciphers that resist exploitation. Some are (in)famous and othersobscure, some may be hoaxes and others yet to be discovered, but they sharethe same fate: they have yet to be solved. This presentation will review anumber of unsolved ciphers as well as detail some recent success stories asa means of spurring amateur cryptographers to action.</p><p>230 266 239 333 73 20 327 39 173 105 184 185 16 347 131 214 138 48 218 328101 349 (9) (8) 33 346 28 260 142 167</p>