🪄 Series Adventure

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中文

Capybara's Gauss Magic!

👉 Adventure Guide:
🪄 Levels 1-4 [Gauss Reflection]: Observe the block stairs, use magic to form a large rectangle, and understand why the formula needs to be "divided by 2"!
🌉 Levels 5-8 [Bridge Engineering]: Use the trapezoid area concept (First+Last)×n÷2 to build a bridge. (Trap warning: Forget to divide by 2 and the bridge will collapse!)
☁️ Levels 9-12 [Mist Stairs]: Ultimate challenge! If the number of terms n is not given, you must first calculate n using the formula from the previous unit, then find the sum!

⚠️ +20 points for correct answers, -10 points for falling into a trap. Challenge the fastest clear time!

🎉 Level Cleared!

🏆 Series Master Leaderboard

🏆 Highest Score 🕒 Recent Challenges
Rank Name High Score ⏱️ Time Date
21 李沛芸 170 11:08 2026-04-14