Question 1

Is Othello the same as Reversi?

Accepted Answer

Essentially yes. Othello standardizes the starting position with 4 discs in the center, while classic Reversi allows free placement. Othellio follows official Othello rules.

Question 2

How long does an Othello game take?

Accepted Answer

Online games typically take 5–15 minutes. Choose from Bullet (1 min), Blitz (5 min), Rapid (15 min), or Classic (30 min) time controls.

Question 3

Can I play Othello for free?

Accepted Answer

Yes, Othellio is completely free. Play against AI, solve puzzles, and compete in ranked matches — no payment required.

Question 4

How does the AI difficulty work?

Accepted Answer

Our AI uses the Egaroucid engine with 9 levels. Each level maps to a rank tier — Lv1 (Iron) plays casually, while Lv9 (Challenger) reads many moves ahead.

Question 5

Can I play Othello on mobile?

Accepted Answer

Yes, Othellio works on any mobile browser. Add it to your home screen for an app-like experience with full offline support.

对局历史

对局记录