5 wrong answers — this planet's guardians pushed you back. This planet restarts from the beginning.
⚔️
Boss Gate Open!
You've earned the challenge — the planet boss awaits.
🗺️
Ready for the Next Arena?
You cleared the last one — keep going, or pick a different arena from the Star Atlas.
⚔️
Challenge the Planet Boss?
Are you sure you want to leave the arena? You'll head straight into the Boss Room — and if you leave without defeating the boss, the gate closes and you'll have to earn it again!
Precalculus Odyssey
Knowledge Is Humanity's Strongest Weapon
Precalculus Odyssey
A maths voyage across the galaxy — solve planets to explore the stars.
Arena 1 · The Sol SystemEarth🔭 tap for star map
Streak0🔥 solved
Passes0🎟️ Wonderland
Hero: Lv. 1🏆 Trophies: 0
XP: 0/100
HP: 100/100MP: 20/20
🏆 Collected Trophies
No trophies collected yet. Defeat arena monsters!
Arena Progress: 0 / 10❤️❤️❤️❤️❤️🎟️ Passes: 0
Moves: 0
Pick a move, then apply it to both sides
Hint
A tiny seed is planted...
🛒 Weapon & Shield Store
Weapons (Increases Attack Power - AP)
Shields (Increases Defense Power - DP)
Armor (Increases DEF & max HP)
Shoes (Increases Speed - SPD)
⚔️ Monster Challenge Arena
🎯 Arena 1 Bounty Checklist
Choose an unlocked monster. Stronger monsters unlock as your planet and hero level rise.
You
⚔️🛡️
HP: 100/100
MP: 20/20
AP: 1 | DP: 0
VS
Monster
HP: 100/100
MP: 40/40
AP: 5 | DP: 2
Battle Journal
🔒 Gauntlet fight — no Escape until the whole chain is cleared