🦊 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
41 欣曈 190 01:42 2026-04-01
42 90210 190 01:59 2026-05-07
43 林芷妘 190 02:38 2026-03-27
44 吳季霖 190 02:51 2026-04-01
45 . 190 03:01 2026-04-01
46 123 190 03:27 2026-03-30
47 朱朱 180 04:35 2026-09-18
48 90226 165 01:55 2026-03-27
49 李盈槿 165 02:15 2026-04-16
50 陳宣齊 165 03:06 2026-04-01