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CTF HISTORY

START DATECTFRANK

2025/07/20

AlpacaHack Round 13 (Crypto)
6 / 62

2025/07/06

AlpacaHack Round 12 (Crypto)
4 / 78

2025/01/26

AlpacaHack Round 9 (Crypto)
13 / 138

2024/09/15

AlpacaHack Round 3 (Crypto)
55 / 239

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

Yet Another Injection Challenge
Misc
tkbctf5

29 solves

last week

Patisserie
Web
tkbctf5

96 solves

last week

Linear DoS
Misc
tkbctf5

32 solves

last week

javajail
Misc
tkbctf5

56 solves

last week

RANDOM IN THE FUTURE.
Crypto
tkbctf5

27 solves

last week

Double Hint RSA
Crypto
tkbctf5

30 solves

last week

README.pdf
Rev
tkbctf5

143 solves

last week

Faulty AES
Crypto
tkbctf5

62 solves

last week

Single Hint RSA
Crypto
tkbctf5

118 solves

last week

Fault Tolerance Py
Misc
tkbctf5

8 solves

last week

simple ROP
Pwn
Daily AlpacaHack

107 solves

4 weeks ago

nc magic
Misc
Daily AlpacaHack

128 solves

4 weeks ago

AAAAAAAAEEEEEEEESSSSSSSS
Crypto
Daily AlpacaHack

116 solves

4 weeks ago

destructuring
Misc
Daily AlpacaHack

137 solves

4 weeks ago

Alpaca-Llama Ranch
Pwn
Daily AlpacaHack

118 solves

4 weeks ago

Plz Login
Web
Daily AlpacaHack

215 solves

4 weeks ago

Compressor
Misc
Daily AlpacaHack

104 solves

4 weeks ago

misdirection
Rev
Daily AlpacaHack

151 solves

last month

The World
Misc
Daily AlpacaHack

180 solves

last month

RRe_Time_Limiter
Crypto
Daily AlpacaHack

171 solves

last month

Magic Engine
Web
Daily AlpacaHack

255 solves

last month

read-a-binary
Rev
Daily AlpacaHack

213 solves

last month

Substance
Crypto
Daily AlpacaHack

231 solves

last month

HellCouple
Crypto
Daily AlpacaHack B-SIDE

67 solves

last month

ECRSA
Crypto
Daily AlpacaHack B-SIDE

45 solves

last month

optimal-sort
Misc
Daily AlpacaHack

100 solves

last month

Linear Coffee Generator
Crypto
Daily AlpacaHack

110 solves

last month

shellcode-101
Pwn
Daily AlpacaHack

130 solves

last month

No JS
Web
Daily AlpacaHack

129 solves

last month

ToyPQC
Crypto
Daily AlpacaHack

105 solves

last month

git gc
Misc
Daily AlpacaHack

148 solves

last month

Stateless Auth
Web
Daily AlpacaHack

164 solves

last month

Paca Paca Authenticator
Crypto
Daily AlpacaHack

124 solves

last month

Bashrunner
Misc
Daily AlpacaHack

118 solves

last month

Animal Viewer
Web
Daily AlpacaHack

152 solves

last month

dockerstack
Misc
Daily AlpacaHack

175 solves

last month

system-v
Rev
Daily AlpacaHack

117 solves

2 months ago

ChaChaCha
Crypto
Daily AlpacaHack

154 solves

2 months ago

dice roll
Web
Daily AlpacaHack

198 solves

2 months ago

Base Length
Misc
Daily AlpacaHack

152 solves

2 months ago

Short Writer
Pwn
Daily AlpacaHack

123 solves

2 months ago

Five Alpacas
Crypto
Daily AlpacaHack

190 solves

2 months ago

cha-ll-enge
Rev
Daily AlpacaHack

151 solves

2 months ago

simpleoverwrite
Pwn
Daily AlpacaHack

188 solves

2 months ago

Useful Machine
Rev
Daily AlpacaHack

155 solves

2 months ago

Xmas Login
Web
Daily AlpacaHack

334 solves

2 months ago

cat3
Misc
Daily AlpacaHack

212 solves

2 months ago

Rotten Beef
Pwn
Daily AlpacaHack

198 solves

2 months ago

Log Viewer
Web
Daily AlpacaHack

220 solves

2 months ago

omikuji
Web
Daily AlpacaHack

240 solves

2 months ago

RSA debug?
Crypto
Daily AlpacaHack

185 solves

2 months ago

108
Misc
Daily AlpacaHack

283 solves

2 months ago

one-p-rsa
Crypto
Daily AlpacaHack

222 solves

2 months ago

RBG
Crypto
Daily AlpacaHack

121 solves

2 months ago

alloc-101
Pwn
Daily AlpacaHack

212 solves

2 months ago

Twilight
Rev
Daily AlpacaHack

223 solves

2 months ago

login-bonus
Pwn
Daily AlpacaHack

244 solves

2 months ago

🐈
Web
Daily AlpacaHack

299 solves

2 months ago

Flag Printer 2100
Rev
Daily AlpacaHack

240 solves

2 months ago

power_obfus_royalty
Rev
Daily AlpacaHack

200 solves

2 months ago

Safe Prime
Crypto
Daily AlpacaHack

248 solves

2 months ago

Sugoi Flag Checker
Rev
Daily AlpacaHack

198 solves

2 months ago

Alpaca Bank
Web
Daily AlpacaHack

320 solves

2 months ago

Read Assembly
Rev
Daily AlpacaHack

305 solves

2 months ago

hit-and-miss
Misc
Daily AlpacaHack

372 solves

2 months ago

Fully Padded RSA
Crypto
Daily AlpacaHack

231 solves

2 months ago

size limit
Crypto
Daily AlpacaHack

307 solves

2 months ago

simpleoverflow
Pwn
Daily AlpacaHack

486 solves

2 months ago

Integer Writer
Pwn
Daily AlpacaHack

315 solves

2 months ago

Leaked Flag Checker
Rev
Daily AlpacaHack

542 solves

2 months ago

Emojify
Web
Daily AlpacaHack

572 solves

2 months ago

a fact of CTF
Crypto
Daily AlpacaHack

850 solves

2 months ago

AlpacaHack 2100
Misc
Daily AlpacaHack

1546 solves

2 months ago

I wanna be the Admin
Web
Daily AlpacaHack

277 solves

2 months ago

Basic Buffer Overflow
Pwn
Daily AlpacaHack

179 solves

2 months ago

crazython
Rev
Daily AlpacaHack

178 solves

2 months ago

RSA2026
Crypto
Daily AlpacaHack

200 solves

2 months ago

SwapSwap
Misc
Daily AlpacaHack

270 solves

2 months ago

secret-table
Web
Daily AlpacaHack

261 solves

2 months ago

Square RSA
Crypto
Daily AlpacaHack

224 solves

2 months ago

jailiaj
Misc
Daily AlpacaHack

269 solves

2 months ago

Encoding Basics
MiscCrypto
Daily AlpacaHack

302 solves

2 months ago

Fushigi Crawler
Web
Daily AlpacaHack

330 solves

2 months ago

Ruby Flag Checker
Rev
Daily AlpacaHack

276 solves

2 months ago

super-tomato
Crypto
Daily AlpacaHack

374 solves

2 months ago

free-comment
Misc
Daily AlpacaHack

148 solves

2 months ago

MissingNo.2
Crypto
AlpacaHack Round 13 (Crypto)

8 solves

8 months ago

MissingNo.1
Crypto
AlpacaHack Round 13 (Crypto)

11 solves

8 months ago

Jerry's flag checker
Crypto
AlpacaHack Round 13 (Crypto)

33 solves

8 months ago

OTEC
Crypto
AlpacaHack Round 12 (Crypto)

39 solves

8 months ago

Flag Sharing
Crypto
AlpacaHack Round 12 (Crypto)

10 solves

8 months ago

RSARSARSARSARSARSA
Crypto
AlpacaHack Round 12 (Crypto)

79 solves

8 months ago

RSAMPC
Crypto
AlpacaHack Round 9 (Crypto)

35 solves

8 months ago

Hat Trick
Crypto
AlpacaHack Round 3 (Crypto)

66 solves

last year

A Dance of Add and Mul
Crypto
AlpacaHack Round 3 (Crypto)

74 solves

last year

Rainbow Sweet Alchemist
Crypto
AlpacaHack Round 3 (Crypto)

124 solves

last year

addprimes
Crypto
AlpacaHack Round 9 (Crypto)

27 solves

last year

hidden
Rev
AlpacaHack Round 8 (Rev)

71 solves

last year

masking tape
Rev
AlpacaHack Round 8 (Rev)

173 solves

last year

Welcome
Misc

1524 solves

last year

NNNN
Crypto
AlpacaHack Round 5 (Crypto)

49 solves

last year

XorshiftStream
Crypto
AlpacaHack Round 5 (Crypto)

64 solves

last year

qrime
Crypto
AlpacaHack Round 3 (Crypto)

252 solves

last year