Othello (Reversi)
Othello (Reversi) — play free online now. 12 free AI levels, online multiplayer, and AI Coach analysis. PC & mobile.
日本語About This Othello (Reversi) Game
- AI opponents
- 15 difficulty levels. 1–12 completely free, 13–14 with account (3 per day), 15 with Upgrade Pack.
- Online play
- Ranked matchmaking with players of similar skill. Invite friends via link.
- AI Coach
- Post-game analysis rating every move, with a win-rate chart showing turning points.
How to play
- The basics
- Place a disc to sandwich your opponent's — they flip to your color. Black moves first. Most discs at the end wins.
- Key strategy
- Corners can never be flipped — secure them early. Avoid squares diagonal to corners. Keep your moves open; fewer discs mid-game can be an advantage.
FAQ
How strong is the AI?
15 levels. Level 1 is random. Win rates drop as you climb: ~24% at Lv5, ~10% at Lv10, under 6% at Lv12. Levels 1–12 are free, 13–14 need an account, Lv15 requires the Upgrade Pack.
Can I play online?
Yes. Ranked matchmaking pairs you by skill (Rank 1–10). Reach Rank 10 for Master status and rated matches. Friends can join via invite links.
What is AI Coach?
After a game, it rates every move and shows a win-rate graph so you see exactly where the game turned. Works for CPU and online games. Requires Upgrade Pack.
Can I choose Black or White?
In CPU mode, use the setting near level selection. Online matchmaking assigns randomly. In invite games, it depends on your seat.
How do I improve?
Start with the tutorial on corner strategy. Then practice against CPU at your level and review with AI Coach.