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Level I Challenges (89)

Page 1 of the challenges in Level I, ordered by date posted (the most recent appear first).

An 'unhearable' message

[veselovsky-15] - 40 users already solved this challenge, 17 are working on it.
 
 
 

Your friend sent you an audio file that contains only a strange melody. In the email, your friend writes that the file contains a message encoded by a variant of Morse code. Can you find out how you can hear the Morse code?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2012-06-05 19:56
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#40) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 200 (206965) 2012-06-05 22:45:37
Bart den Hartog (Bart13) 150 (149337) 2012-06-06 23:58:28
J. M. (jomandi) 125 (113270) 2012-06-09 15:45:52
Dusan (xxdradus) 117 (40436) 2012-06-11 10:18:32
#5 jacobian1729 (jacobian1729) 106 (5584) 2012-06-23 01:40:16
#6 Seth Kintigh (DarkFibre) 104 (79471) 2012-07-03 02:28:22
#7 Hannes (Hartmann) 101 (8680) 2012-09-18 22:18:34
#8 E.T (Ertheb) 101 (81809) 2012-09-27 17:51:10
#9 Harry (Schwabenbambi) 101 (2409) 2012-10-13 12:31:43
#10 Pierre Robier (tripleedged) 101 (5916) 2012-11-14 22:16:20
#11 kevin shaw (steggily) 100 (2298) 2013-01-23 13:45:12
#12 Kirill (ineaugh) 100 (1920) 2013-03-23 22:35:29
#13 Hans Joachim Girulat (joregi) 100 (36278) 2013-06-06 18:15:56
#14 zahir mohsen moradi (ariobarzan) 100 (99757) 2013-09-11 02:59:18
#15 Kim H. S. (tenchijin) 100 (25468) 2014-01-21 16:28:57
#16 Robert (rm) 100 (56475) 2014-09-28 00:15:09
#17 Francisco Moraes (fmoraes) 100 (90044) 2014-11-06 20:50:44
#18 Pavel (haw) 100 (22728) 2014-12-16 22:29:29
#19 George (Theofanidis) 100 (137118) 2014-12-17 21:25:03
#20 Bernhard Gruber (bgr) 100 (22889) 2014-12-22 15:38:31
#21 HolgerK (HolgerK) 100 (25776) 2015-01-19 22:30:58
#22 Karl Schutt (günter) 100 (44374) 2015-04-18 13:23:55
#23 Alain (Integral) 100 (207924) 2015-07-31 21:32:17
#24 Joerg G. (SnifferMaster) 100 (18376) 2015-09-29 10:27:41
#25 Szabó Zoltán (szabo.z87) 100 (55604) 2015-11-03 10:04:03
#26 Andreas Frerichs (Ossili) 100 (33266) 2015-12-11 14:15:46
#27 Rainer Zufall (kiekuk) 100 (56786) 2016-01-14 15:44:59
#28 SMF (SMF) 100 (2208) 2016-07-20 20:41:11
#29 Nicolas (nicosPavlov) 100 (257791) 2016-12-03 10:08:25
#30 S (Zyphe) 100 (13361) 2017-01-18 23:49:51
#31 Dominik M. (Sgt. Pepper) 100 (128575) 2017-03-20 14:42:39
#32 chris (c2) 100 (51973) 2017-04-20 23:07:43
#33 D3d4lu5 (D3d4lu5) 100 (363488) 2017-08-26 18:20:03
#34 Alain Collignon (vexilla72) 100 (123666) 2018-02-08 19:53:03
#35 Michael (FoM) 100 (57794) 2018-12-14 21:29:23
#36 madness (madness) 100 (71592) 2019-02-18 15:55:06
#37 david (sexton) 100 (2801) 2019-07-13 13:26:04
#38 Eugene (lim0n) 100 (199334) 2019-10-18 12:14:25
#39 Mike (RogueRamblers) 100 (81614) 2020-04-30 20:12:32
#40 Alexander W. Janssen (itnomad) 100 (10782) 2021-02-04 21:40:43
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   +++    [22:12 - 18.10.2021] NikM solved the Level I challenge 'Wheatstone Cryptograph — Part 1'    +++    [18:43 - 18.10.2021] TaRaSS solved the Level I challenge 'Affine Codes / Modulo Arithmetic with N / Extended Euclid'    +++    [17:10 - 18.10.2021] tAnAs solved the Level I challenge 'Letter to the Templars — Part 2'    +++    [16:42 - 18.10.2021] TaRaSS solved the Level I challenge 'Beaver Code'    +++    [16:23 - 18.10.2021] TaRaSS solved the Level I challenge 'Number Sequence — Part 2'    +++