🦊 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
21 19 240 02:27 2026-03-27
22 7 240 02:38 2026-06-21
23 lin 240 02:39 2026-05-21
24 009 240 04:04 2026-05-22
25 艘艘'''''說森 235 02:05 2026-09-11
26 lD:123456789 235 02:11 2026-09-14
27 A 230 04:13 2026-07-09
28 23154 225 02:48 2026-08-28
29 陳品豪 215 01:28 2026-04-09
30 林以喬 215 01:29 2026-03-27