🦊 Number Theory Vault Adventure

中文
Score: 0
⏱️ 00:00

Unlock the ancient seals behind the numbers!

👉 Exploration Guide:
🦊 Lv 1~4 [Kitsune Array]: Identify multiples of 9. Note! Don't just check if it ends in 9, you must "sum" all digits!
🧝‍♂️ Lv 5~8 [Elf Scale]: Identify multiples of 11. Sum "odd positions" and "even positions" separately, then subtract. A difference of 0 is also a multiple of 11!
🔐 Lv 9~12 [Vault Lock]: A digit is missing □. Deduce which digit (0~9) unlocks it.

⚠️ You must predict the answer to unlock animations! Correct: +20 pts. Wrong: -5 pts.
Level 1
Preparing...
0000
🤔 Predict: Is this a multiple?

🏆 Vault Leaderboard

🏆 By Highest Score 🕒 By Latest Attempt
Rank Name Highest Score ⏱️ Time Date
🥇 1 14 240 01:07 2026-04-12
🥈 2 ii 240 01:08 2026-04-12
🥉 3 Il 240 01:12 2026-04-11
4 韓吉 240 01:18 2026-04-10
5 Jessie 240 01:22 2026-05-15
6 潘林承楷 240 01:26 2026-03-27
7 5948785 240 01:29 2026-08-28
8 90219 240 01:32 2026-04-30
9 9221蕭 240 01:33 2026-03-31
10 90212 240 01:36 2026-04-09