§§,,,§§§,,                                          ,§§,§§§,§,
§§§,,§,§§,                                          ,§§,§,§,,,
§,§§,,,§§§                                          ,§§,,,,§,,
,,§§§,,§,§                                          ,§§§,,,,§,
,,§,§§,,,§                                          ,§,§§,,,,§
§,,,§§§,,§             ########@#%=#@###            ,,,§§§,,,,
,§,,§,§§,,             # tetris effect #            §,,§,§§,,,
,,§,,,§§§,             ########@#%=#@###            §§,,,§§§,,
,,,§,,§,§§                                          §§§,,§,§§,
,,,,§,,,§§       tetris inducing activites:         §,§§,,,§§§
§,,,,§,,§,                                          ,,§§§,,§,§
§§,,,,§,,,   = tetris                               ,,§,§§,,,§
,§§,,,,§,,   = context free grammars (especially    ,,,,§§§,,§
,§§§,,,,§,     refactoring)                         ,,,,§,§§,,
,§,§§,,,,§   = waiting tables                       ,,,,,,§§§,
,,,§§§,,,,   = minecraft                            §,,,,,§,§§
§,,§,§§,,,   = protoss in star craft brood war      §§,,,,,,§§
§§,,,§§§,,   = google maps                          ,§§,,,,,§,
§§§,,§,§§,                                          ,§§§,,,,,,
§,§§,,,§§§                                          ,§,§§,,,,,
,,§§§,,§,§                                          ,,,§§§,,,,
,,§,§§,,,§                                          §,,§,§§,,,
,,,,§§§,,§                                          §§,,,§§§,,
,,,,§,§§,,                                          §§§,,§,§§,