Welcome guest.   Log in
The ALAN TURING
Cryptography Competition.
(edition 2015: #4).
Home
About
Cryptography
Register
FAQ
Rules
For
Teachers
News
Leaderboard
Forum
Map
Archive
The Tale of the

Carbon

Conundrum

Is released!
Points available: 1 of 15
Is released!
Points available: 1 of 15
Is released!
Points available: 2 of 15
(Until 2 Mar, 4:04 pm)
Is released!
Points available: 8 of 15
(Until 27 Feb, 4:14 pm)
Chapter 5
Due: Mon 9 Mar, 4 pm
Countdown clock:
Chapter 6
Due: Mon 23 Mar, 4 pm
Solutions
Due: Mon 13 Apr, 4 pm
Announcing

The Alan Turing

Cryptography Day

2015!

Want to come over to Manchester for a bit of live crypto stuff, the prize ceremony and an opportunity to meet the organisers?

Then sign up!

Forum: active topics.

IndexActive topicsMy active topicsMy team's active topicsCreate new topic
Cat TitleAuthorRepliesLast reply
ANN
Hint for Chapter 4
»
Charles
25 Feb 4:31:35 pm
0
ANN
Prizes for Chapter 2
»
Sebastian
25 Feb 10:29:56 am
0
ANN
Prizes for Chapter 1.5
»
Sebastian
25 Feb 10:25:27 am
0
ANN
Chapter One Spot Prizes
»
Sebastian
6 Feb 10:58:50 am
11
YY
24 Feb 9:32:53 pm
ANN
Welcome! A few rules.
»
Kees
23 Jan 1:36:28 am
26
YY
23 Feb 6:13:04 pm
ANN
Hint for Chapter 3
»
Charles
20 Feb 4:20:04 pm
0
ANN
Competition Bans
»
Sebastian
17 Feb 12:08:52 pm
0
ANN
Video Content
»
Sebastian
11 Feb 5:07:25 pm
1
Burgundy
14 Feb 12:11:24 pm
ANN
Hint for Chapter 2
»
Sebastian
12 Feb 12:19:00 pm
4
Sebastian
13 Feb 9:30:16 am
ANN
Website problem around release of first Chapter
»
Kees
26 Jan 5:39:52 pm
13
ScratchyGnome
9 Feb 4:08:27 pm
ANN
Website problems -- update
»
Kees
27 Jan 11:44:52 am
2
Andrew
2 Feb 7:58:31 pm
ANN
Bonus Chapter
»
Sebastian
30 Jan 6:08:30 pm
15
Kees
2 Feb 5:10:41 pm
TP
Exact Time of Submission on Leader-board
»
TheCode
24 Feb 10:31:34 pm
6
XPlaneExplained
27 Feb 7:46:13 am
TP
NEWS ITEM WILL NOT SHOW ALL THE WRITING
»
E7-EM
12 Feb 5:16:07 pm
7
E7-EM
24 Feb 5:13:46 pm
TP
Limit on devices
»
tauriel
17 Feb 4:16:04 pm
6
tauriel
23 Feb 1:30:12 pm
TP
Attempts issue
»
Sudibuddy
16 Feb 5:15:04 pm
13
Kees
20 Feb 3:55:24 pm
COM
Chapter 4
»
jakethakur22
17 Feb 6:48:43 pm
211
Withington28
26 Feb 7:03:29 pm
COM
About the hints...
»
MouldyGoldie
25 Feb 7:22:12 pm
4
Heartofgold
26 Feb 5:09:43 pm
COM
The Suggestions Thread
»
JH1010
25 Feb 9:57:48 pm
1
Lucifer
25 Feb 10:13:54 pm
COM
Chapter 5
»
TheCode
24 Feb 10:28:57 pm
2
Sherlocks
25 Feb 5:45:38 pm
COM
Rules regarding software and websites?
»
bobthefish1999
24 Feb 9:11:52 am
1
Charles
24 Feb 9:11:07 pm
COM
Spot Prizes
»
BrandonF
29 Jan 5:00:10 pm
14
Tejal
24 Feb 5:21:21 pm
COM
Scoring
»
Earth
26 Jan 5:26:08 pm
15
megan
23 Feb 5:54:04 pm
COM
Date of chapter 3 hint
»
Karthi
19 Feb 7:49:12 am
9
Lucifer
21 Feb 2:59:35 pm
COM
Chapter 3
»
TheCode
9 Feb 10:56:23 pm
56
Bantha
21 Feb 4:18:22 am
COM
Chapter 2
»
TheCode
27 Jan 11:03:38 pm
41
DaFluff
14 Feb 3:37:33 pm
COM
Side Chapters
»
Lucifer
5 Feb 8:16:46 pm
2
arob02
8 Feb 10:44:37 am
COM
Chapter 1
»
TheCode
23 Jan 12:13:16 am
44
E7-EM
3 Feb 7:40:15 pm
COM
Chapter 1.5
»
Mew
30 Jan 8:45:48 pm
18
E7-EM
3 Feb 7:39:20 pm
GC
Cryptex's Cryptography Competition [UNOFFICIAL]
»
Silverfish
25 Feb 10:27:52 pm
32
XPlaneExplained
27 Feb 1:29:15 pm
GC
National cipher challenge
»
XPlaneExplained
24 Feb 8:28:23 pm
67
XPlaneExplained
27 Feb 1:26:02 pm
GC
Vending Machine
»
Mirimanda21
25 Jan 5:09:32 pm
405
E7-EM
27 Feb 6:58:08 am
GC
Corrupt-A-Wish
»
Alexp273
12 Feb 4:09:39 pm
169
E7-EM
27 Feb 6:56:07 am
GC
Annoying Songs
»
Burgundy
15 Feb 10:09:51 pm
9
E7-EM
27 Feb 6:53:54 am
GC
What career does everyone want to get?
»
E7-EM
26 Feb 5:48:09 pm
21
E7-EM
27 Feb 6:51:44 am
GC
King Of The Hill
»
Mirimanda21
23 Jan 7:19:53 pm
903
E7-EM
27 Feb 6:47:42 am
GC
The Three word game
»
sleumas2000
23 Jan 8:58:42 am
443
E7-EM
27 Feb 6:46:55 am
GC
Slowchat #2
»
Kees
16 Feb 3:36:34 pm
183
E7-EM
27 Feb 6:46:15 am
GC
Doctor Who
»
WhoFangirl
24 Feb 5:15:54 pm
14
Burgundy
26 Feb 10:21:51 pm
GC
Word 'Disassociate'
»
BrandonF
29 Jan 5:10:40 pm
227
hunterfangirl
26 Feb 9:36:22 pm
GC
KOTH 2.0
»
Silverfish
26 Feb 8:01:38 pm
25
jackpires11
26 Feb 8:58:18 pm
GC
Fibonacci Sequence
»
kingp18
3 Feb 5:59:23 pm
103
Silverfish
26 Feb 8:58:11 pm
GC
Banter
»
BanterKing
2 Feb 4:27:34 pm
23
MouldyGoldie
26 Feb 7:20:34 pm
GC
Football
»
Bjornhattan
26 Jan 7:29:00 pm
30
E7-EM
26 Feb 6:49:59 pm
GC
BPL Predictions
»
thezylemcell
16 Feb 4:37:04 pm
3
blacktag225
26 Feb 6:42:11 pm
GC
Random useless facts
»
E7-EM
20 Feb 8:08:13 pm
16
E7-EM
26 Feb 6:40:05 pm
GC
Team Name and Signature competition
»
XPlaneExplained
24 Feb 5:17:04 pm
22
WhoFangirl
26 Feb 6:20:24 pm
GC
Can't solve 4
»
jelybabie
24 Feb 9:29:42 am
10
E7-EM
26 Feb 6:09:29 pm
GC
one word story
»
seci
3 Feb 6:46:44 pm
138
E7-EM
26 Feb 5:33:27 pm
GC
The Forum Post Leader board
»
TheCode
24 Jan 11:55:17 pm
334
E7-EM
26 Feb 5:29:55 pm
GC
Cryptography Day!
»
RyanThePro
2 Feb 5:51:20 pm
90
E7-EM
26 Feb 5:25:20 pm
GC
RIP Barquith
»
Astro
9 Feb 4:43:05 pm
160
E7-EM
26 Feb 5:15:54 pm
GC
Disney
»
WhoFangirl
24 Feb 5:03:24 pm
12
E7-EM
26 Feb 4:02:47 pm
GC
Cipher Challenges
»
Burgundy
29 Jan 9:05:43 pm
61
Bluecheese
26 Feb 2:17:17 pm
GC
SUBJECT TARGETS
»
E7-EM
24 Feb 6:27:45 pm
5
E7-EM
26 Feb 6:56:01 am
GC
doubling numbers
»
YY
3 Feb 8:47:29 pm
91
jackpires11
25 Feb 10:51:38 pm
GC
Word Recurrer
»
Burgundy
24 Jan 11:03:33 pm
261
jackpires11
25 Feb 10:49:48 pm
GC
Word Association
»
kingp18
28 Jan 11:00:21 am
302
jackpires11
25 Feb 6:57:47 pm
GC
Paradoxes
»
E7-EM
20 Feb 7:51:30 pm
35
CorruptedSave
25 Feb 5:33:08 pm
GC
Professor Layton Games
»
CodeBreaker7RHU
16 Feb 3:57:39 pm
5
CorruptedSave
25 Feb 5:25:17 pm
GC
Music Interest's?
»
Bong
26 Jan 10:47:45 am
25
Ria1
25 Feb 5:24:06 pm
GC
New Game : "i go to a shop and i get... "
»
seci
3 Feb 6:13:34 pm
56
Sebastian
25 Feb 10:48:17 am
GC
square numbers
»
YY
4 Feb 6:30:15 pm
50
jackpires11
24 Feb 10:11:40 pm
GC
Clash Of Clans
»
Lucifer
23 Jan 7:31:39 pm
45
blacktag225
24 Feb 9:20:48 pm
GC
Riddles
»
Mirimanda21
25 Jan 1:20:45 pm
187
blacktag225
24 Feb 9:01:51 pm
GC
Word Game
»
Earth
5 Feb 6:04:10 pm
28
jackpires11
24 Feb 8:33:14 pm
GC
Debate Thread!
»
Earth
2 Feb 6:28:34 pm
175
E7-EM
24 Feb 5:32:52 pm
GC
FUN RANDOM USELESS FACTS!!!!
»
TheElectrozoid
20 Feb 8:11:57 pm
13
E7-EM
24 Feb 4:55:53 pm
GC
Fandoms.
»
Mr.Brightside
26 Jan 3:51:02 pm
36
WhoFangirl
24 Feb 4:52:32 pm
GC
THATS SOOOOO FUNNY!!!
»
Lucifer
25 Jan 11:47:04 am
47
E7-EM
24 Feb 4:12:32 pm
GC
Decimal places of pi memorised??
»
E7-EM
30 Jan 5:25:57 pm
59
E7-EM
24 Feb 4:07:26 pm
GC
PIE
»
jpicker
23 Feb 6:42:56 pm
4
E7-EM
24 Feb 4:07:01 pm
GC
Cube numbers
»
E7-EM
7 Feb 8:36:29 am
35
E7-EM
24 Feb 4:06:12 pm
GC
Boast about anything!!!!!!!!!!!
»
E7-EM
20 Feb 1:50:17 pm
25
E7-EM
24 Feb 4:03:41 pm
GC
Sequences
»
YY
12 Feb 8:28:21 pm
24
jackpires11
23 Feb 11:34:15 pm
GC
GAMING!!
»
TheElectrozoid
16 Feb 3:10:27 pm
66
Phi
23 Feb 9:52:51 pm
GC
pUTIN OR sTALIN?
»
Holly
18 Feb 5:54:11 pm
21
Holly
23 Feb 9:07:30 pm
GC
How many years?
»
MatthewBond
2 Feb 6:05:29 pm
30
E7-EM
23 Feb 6:58:23 pm
GC
Does anyone have a roblox account?
»
MrBaggins
23 Feb 1:43:53 pm
4
Phi
23 Feb 6:58:03 pm
GC
Introductions!!!
»
TheCode
23 Jan 12:09:59 am
149
TheCode
23 Feb 6:55:36 pm
GC
Cricket World Cup
»
Karthi
22 Feb 2:55:32 pm
4
TheCode4
23 Feb 6:42:02 pm
GC
Mathematical books.
»
E7-EM
21 Feb 2:42:29 pm
48
E7-EM
23 Feb 6:05:24 pm
GC
Lent
»
E7-EM
21 Feb 6:31:03 pm
11
E7-EM
23 Feb 3:58:31 pm
GC
SPORTS!!!
»
TheElectrozoid
21 Feb 5:10:22 pm
14
E7-EM
23 Feb 3:55:45 pm
GC
Favourite books
»
E7-EM
20 Feb 7:59:15 am
30
Wilsbro
23 Feb 3:54:15 pm
GC
Nicolas Cage
»
Holly
2 Feb 4:12:54 pm
24
Holly
23 Feb 3:47:46 pm
GC
Favourite animal
»
uhjy
16 Feb 4:18:14 pm
5
TheElectrozoid
23 Feb 11:44:39 am
GC
Technology
»
minigeek
31 Jan 6:52:02 pm
46
TheElectrozoid
23 Feb 11:26:29 am
GC
Favourite film quotes
»
TotezNotAPerson
18 Feb 3:15:43 pm
6
TheElectrozoid
21 Feb 11:36:51 pm
GC
Smilies spam
»
Ning77
28 Jan 8:37:38 am
154
E7-EM
21 Feb 4:49:16 pm
GC
PARADOXES!!!!
»
TheElectrozoid
20 Feb 7:52:41 pm
3
TheElectrozoid
20 Feb 7:55:40 pm
GC
Comedies you enjoy.
»
E7-EM
20 Feb 1:56:20 pm
4
E7-EM
20 Feb 2:21:19 pm
GC
Favourite mathematical topics/theorems/proofs/ etc
»
E7-EM
19 Feb 5:32:49 pm
1
BletchleyPark
19 Feb 6:17:12 pm
GC
your teams rank in the competition
»
YY
16 Feb 3:08:49 pm
6
YY
19 Feb 4:10:24 pm
GC
Time you finish school?
»
11fheneli
26 Jan 5:19:56 pm
47
E7-EM
19 Feb 1:08:34 pm
GC
Stationery
»
Lucifer
16 Feb 5:35:03 pm
20
E7-EM
19 Feb 6:22:29 am
GC
Time you finish school?
»
11fheneli
26 Jan 5:19:44 pm
18
CricGuru
18 Feb 6:16:03 pm
GC
Room 101
»
MatthewBond
2 Feb 7:39:11 pm
134
E7-EM
18 Feb 3:34:30 pm
GC
floating islands
»
seci
5 Feb 6:38:58 pm
14
E7-EM
18 Feb 2:19:51 pm
GC
CELEBRATING 1000 REPLIES
»
E7-EM
14 Feb 8:54:18 am
15
TotezNotAPerson
18 Feb 1:28:38 am
GC
how easy is this?
»
dinbi13
2 Feb 4:21:35 pm
5
MadPheonix
17 Feb 4:36:15 pm
GC
Languages Thread
»
Derekism
1 Feb 9:31:23 am
33
Phi
17 Feb 11:31:12 am
GC
Favourite Books?
»
Lost_The_Game
26 Jan 8:41:49 pm
36
elanarobson
16 Feb 5:31:00 pm
GC
Intermediate Maths Challenge
»
TheCode
5 Feb 10:22:55 am
17
TapirDeus
16 Feb 4:53:24 pm
GC
The Imitation Game
»
TheCode
24 Jan 12:34:59 am
47
talbotheath8
16 Feb 4:49:49 pm
GC
Imitation Game
»
talbotheath8
16 Feb 4:31:16 pm
3
talbotheath8
16 Feb 4:49:28 pm
GC
Maths Problems
»
XPlaneExplained
3 Feb 8:27:31 pm
5
YY
16 Feb 2:51:52 pm
GC
Maths boasts!
»
singingbanana
29 Jan 12:29:10 pm
77
E7-EM
16 Feb 7:42:04 am
GC
World of Tanks
»
TehEpicZak
7 Feb 12:50:22 pm
11
10js01
14 Feb 8:32:32 pm
GC
Favourite hobbies
»
E7-EM
23 Jan 8:15:24 pm
39
10js01
14 Feb 8:31:24 pm
GC
3D modelling?
»
Bantha
29 Jan 6:38:18 pm
4
Bantha
14 Feb 1:36:18 pm
GC
share ebic me-mes here
»
monethys
2 Feb 3:43:21 pm
2
Bantha
14 Feb 1:35:02 pm
GC
Imgur
»
Lottie
30 Jan 7:31:29 pm
8
Bantha
14 Feb 1:33:14 pm
GC
GREAT FORTRESS
»
seci
4 Feb 6:38:59 pm
22
YY
14 Feb 12:52:15 pm
GC
CODES AND CIPHERS
»
jaysong
30 Jan 4:10:39 pm
43
E7-EM
14 Feb 12:45:43 pm
GC
Fandoms.
»
Mr.Brightside
26 Jan 3:50:32 pm
12
E7-EM
14 Feb 12:07:32 pm
GC
Is eveRywon enjoying the, compatision?? :D
»
Bong
28 Jan 11:19:31 am
7
E7-EM
14 Feb 12:07:16 pm
GC
Bletchey Talk Group
»
Jog
27 Jan 1:23:13 pm
2
E7-EM
14 Feb 12:07:01 pm
GC
Question about scoring not answered in FAQ
»
bobthefish1999
26 Jan 5:45:57 pm
16
E7-EM
14 Feb 12:06:46 pm
GC
A more fair solution to the server issue on ch.1
»
Kupperu
27 Jan 2:25:31 pm
15
E7-EM
14 Feb 12:06:16 pm
GC
Competing
»
10js01
26 Jan 9:09:34 pm
61
E7-EM
14 Feb 12:05:25 pm
GC
Music
»
Mirimanda21
23 Jan 8:35:07 pm
86
E7-EM
14 Feb 12:04:11 pm
GC
aKO0D
»
Pacific_Rim
29 Jan 7:15:43 pm
3
E7-EM
14 Feb 12:03:17 pm
GC
pizza
»
powerpuff123
26 Jan 6:01:58 pm
14
E7-EM
14 Feb 12:02:48 pm
GC
Any Reddit users here?
»
SatanicAron666
2 Feb 3:48:21 pm
3
E7-EM
14 Feb 12:01:52 pm
GC
Thank you for resolving the errors!
»
Bantha
26 Jan 4:13:04 pm
7
E7-EM
14 Feb 12:01:15 pm
GC
What's your name??
»
lcurtis
2 Feb 4:04:35 pm
11
E7-EM
14 Feb 11:59:48 am
GC
Done it already! Whoop whoop!
»
jakethakur22
2 Feb 4:02:50 pm
6
E7-EM
14 Feb 11:59:31 am
GC
Candidates for double dating
»
bvince
2 Feb 4:08:11 pm
4
E7-EM
14 Feb 11:58:50 am
GC
Jokes
»
BOBBLACK
28 Jan 11:01:06 pm
14
E7-EM
14 Feb 11:58:14 am
GC
SmileyDragons
»
hugoambrose
2 Feb 5:10:21 pm
3
E7-EM
14 Feb 11:57:36 am
GC
We should set a deadline on king of the hill.
»
AwesomeOne
25 Jan 7:52:06 pm
7
E7-EM
14 Feb 11:56:26 am
GC
Sorry!!!
»
Earth
26 Jan 5:27:16 pm
8
E7-EM
14 Feb 11:56:10 am
GC
Does anyone make YouTube videos?
»
AwesomeOne
24 Jan 4:36:45 pm
20
E7-EM
14 Feb 11:55:39 am
GC
Carbon_Logic_14
»
Carbon_Logic_MB
2 Feb 5:40:56 pm
4
E7-EM
14 Feb 11:54:58 am
GC
Pun not intended
»
incognito
26 Jan 5:54:35 pm
30
E7-EM
14 Feb 11:53:50 am
GC
Lie to Me
»
Earth
5 Feb 6:01:37 pm
19
E7-EM
14 Feb 11:52:34 am
GC
College, where you going and what you doing?
»
RyanThePro
27 Jan 8:57:03 pm
17
E7-EM
14 Feb 11:51:50 am
GC
Upcoming films and their Premieres etc!
»
Earth
7 Feb 9:36:34 pm
2
E7-EM
14 Feb 11:51:27 am
GC
Favourite Movies
»
AwesomeOne
24 Jan 8:34:52 pm
41
E7-EM
14 Feb 11:51:05 am
GC
a pet
»
seci
4 Feb 6:37:17 am
9
E7-EM
14 Feb 11:49:49 am
GC
My Favorite Statistic
»
csinclair05
9 Feb 3:56:47 pm
3
E7-EM
14 Feb 11:48:29 am
GC
My Favorite Statistic
»
csinclair05
9 Feb 3:56:38 pm
3
E7-EM
14 Feb 11:46:15 am
GC
Sci-fi
»
Lottie
25 Jan 7:18:02 pm
81
E7-EM
14 Feb 11:43:10 am
GC
Teachers
»
Lucifer
9 Feb 9:56:54 pm
5
E7-EM
14 Feb 11:41:33 am
GC
Fermat's last theorem
»
E7-EM
2 Feb 7:54:51 pm
7
E7-EM
14 Feb 11:35:18 am
GC
Favourite Subjects
»
JESSCOULSON
23 Jan 6:36:30 pm
53
E7-EM
14 Feb 11:34:05 am
GC
Favourite food(s)
»
E7-EM
24 Jan 12:15:47 pm
73
E7-EM
14 Feb 11:31:11 am
GC
Favourite sport(s) Corrected version
»
E7-EM
23 Jan 5:55:27 pm
42
E7-EM
14 Feb 11:28:36 am
GC
Elements of Periodic table memorised
»
YY
2 Feb 9:58:23 pm
31
E7-EM
14 Feb 11:27:27 am
GC
Mathtastic
»
9T41
26 Jan 4:54:47 pm
34
E7-EM
13 Feb 6:47:39 pm
GC
Interesting Facts
»
qiman3
30 Jan 11:12:31 am
113
E7-EM
13 Feb 6:44:51 pm
GC
Signatures
»
TheCode
26 Jan 12:04:28 am
59
E7-EM
13 Feb 6:37:33 pm
GC
future...
»
JESSCOULSON
9 Feb 5:17:38 pm
46
E7-EM
13 Feb 4:53:33 pm
GC
short stories
»
seci
10 Feb 7:05:29 am
14
E7-EM
13 Feb 4:15:47 pm
GC
Bonus Chapter
»
Sebastian
30 Jan 6:10:40 pm
7
E7-EM
31 Jan 3:28:59 pm
Show closed topics as well: