🦊 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
31 90204 215 02:08 2026-04-09
32 902Alysa 215 02:20 2026-03-31
33 ✖️1️⃣ 215 02:22 2026-04-10
34 90205 215 02:28 2026-03-31
35 70325 215 02:38 2026-09-03
36 小靜 215 02:40 2026-04-03
37 90222 215 02:57 2026-03-27
38 90225 215 03:41 2026-03-27
39 陳 215 04:00 2026-05-15
40 盧盺佑 210 15:28 2026-09-21