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the arena

ranked rounds · weekly · ghost-ship specials

● LIVE NOW CTF-092

Weekly Round 092

4 problems · 120 min cap · rated [1200–2400]

PROBLEM A

Palindrome Surgery

Easy

PROBLEM B

Lattice Counting

Medium

PROBLEM C

Edge Dualities

Medium

PROBLEM D

Oracle of Bellman

Hard

▸ ENTER ARENA

COUNTDOWN

00:47:12

remaining · 1,892 operators online

TOP 5 RIGHT NOW

#1 void*star 3204

#2 nullbyte 3158

#3 SEGFAULT 3087

#4 0x41414141 2991

#5 COBOL_ghost 2964

▌ SCHEDULE // UPCOMING + PAST auto-sync · local TZ

● LIVE

주간 라운드 092

CTF-092 · 1,892 participants

목 19:30 KST ▓▓▓▓▓▓▓▓▓▓░░░░░░ 62%

◌ SOON

월간 결선

CTF-093 · 4,410 participants

일 14:00 KST ▓▓░░░░░░░░░░░░░░ 12%

◇ OPEN

고스트 인 더 쉘

CTF-GHOST · 602 participants

10월 31일 22:00 KST ▓▓▓▓▓▓░░░░░░░░░░ 40%

▣ PAST

주간 라운드 091

CTF-091 · 2,103 participants

목 19:30 KST ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ 100%